Smooth muscle number of nuclei

Depending upon whether the number of MTs or the number of kinesins are limiting, the resulting repulsive force can be decreasing with distance or be distance independent. 4 and 5: As 2 and 3, but the nucleus interacts with cell boundary or with motors on the cell cortex at the cell boundary. 6 and 7: Analogous to 1 and 3, but with the …

Smooth muscle 100X To get an idea of the arrangement of the individual cells, look at the nuclei, which look like purple spots in this image. If the nuclei look long and thin, the cells have been sectioned longitudinally (ls). If the cells look round, the cells have been sectioned transversely.This is the nucleus of a cell in interphase (between cell divisions). A bluish purple line around the edge of the nucleus is the nuclear envelope/nuclear membrane. The small darkly staining granules are chromatin (chromosomes). The larger dark purple structure is the nucleolus. The nucleus of a cell in interphase.Study with Quizlet and memorize flashcards containing terms like The cells of _____ muscle are tapered, lack striations, and have a sarcoplasmic reticulum that is not very extensive., Which type of muscle can change length without changing tautness? Multiple choice question. skeletal muscle both smooth and skeletal muscle smooth muscle, Which type of muscle have striated cells that form ...Oct 30, 2023 · Striated muscle; formed of long, multinucleate, unbranched myocytes. Attached at one or either ends to a bony attachment point. Cardiac muscle. Striated muscle; formed of short, uninucleate, branching myocytes which connected at intercalated discs. Specialized muscle of the heart → myocardium. Smooth muscle. Comparison and Contrast: Number of Nuclei: Skeletal muscle has multiple nuclei per cell, while both cardiac and smooth muscles typically have a single nucleus per cell. Cell Shape: Skeletal muscle cells are long and cylindrical, while cardiac muscle cells are branched and cylindrical, and smooth muscle cells are spindle-shaped.Smooth muscle. A longitudinal section of smooth muscle shows non-striated, tapering fibers interlaced to form a highly compact tissue. The nuclei of smooth muscle fibers are euchromatic, centrally located and oval shaped. A region of dense irregular connective tissue is present in the lower left portion of the field. 1000x. 1 of 16. NEXT.kthoman5319. Preview. Nervous System. Justin-Callegari. Preview. Thoracic Cavity (Osteology & Musculature) Shah856. Preview. to help distinguish the differences between skeletal, cardiac and smooth muscle Learn with flashcards, games, and more — for free.

Smooth muscle fibers are spindle-shaped (wide in the middle and tapered at both ends, somewhat like a football) and have a single nucleus; they range from about 30 to 200 μ m (thousands of times shorter than skeletal muscle fibers), and they produce their own connective tissue, endomysium.Jul 30, 2023 · Introduction. Cardiac muscle also called the myocardium, is one of three major categories of muscles found within the human body, along with smooth muscle and skeletal muscle. Cardiac muscle, like skeletal muscle, is made up of sarcomeres that allow for contractility. However, unlike skeletal muscle, cardiac muscle is under involuntary control. A. The autonomic nervous system innervates smooth muscle fibers. B. Smooth muscle fibers lack course connective tissue sheaths. C. Smooth muscle fibers lack T tubules. D. Troponin binds with calcium on the thin filaments of smooth muscle fibers. D.Smooth muscle may be studied using slide #29 #029-1 smooth muscle Webscope or slide #169, ... Find the skeletal muscle nuclei and note their peripheral location. Note the intimate contact between capillaries and muscle cells and be sure you can tell where one muscle cell or fiber stops and another begins (you can see parts of four fibers in ...Cutaneous leiomyomas are rare, benign, smooth muscle tumors that are subcategorized based on the origin of the smooth muscle within the tumor. The most common type of cutaneous leiomyomas, angioleiomyomas, arise from the tunica media of blood vessels. The 2 other subtypes, piloleiomyomas and genital leiomyomas, arise from the arrector pili musculature of the hair follicle and from the smooth ...

... smooth muscle are dense regular connective tissues and peripheral nerves. Both the number of nuclei and their shapes clearly distinguish smooth muscle from.Dec 11, 2020 · Intriguingly, we also identified a population of nuclei (Ckm + Col1a1 +) expressing a number of skeletal muscle-specific genes (e.g., Tnni2, Tnnt3, Ckm) as well as marker genes involved in ... On the other hand, both cardiac muscle and smooth muscle can respond to other stimuli, such as hormones and local stimuli. Figure 10.1.1 - The Three Types of Muscle Tissue: The body contains three types of muscle tissue: (a) skeletal muscle, (b) smooth muscle, and (c) cardiac muscle. From top, LM × 1600, LM × 1600, LM × 1600.Study with Quizlet and memorize flashcards containing terms like Striations, cylindrical cells, and multiple nuclei are observed in ________. A. skeletal muscle only B. cardiac muscle only C. smooth muscle only D. skeletal and cardiac muscles, The cells of muscles, myocytes, develop from ________. A. myoblasts B. endoderm C. fibrocytes D. chondrocytes, Skeletal muscle is composed of very hard ...

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Muscle Tissue. (a) Skeletal muscle cells have prominent striation and nuclei on their periphery. (b) Smooth muscle cells have a single nucleus and no visible striations. (c) Cardiac muscle cells appear striated and have a single nucleus. From top, LM × 1600, LM × 1600, LM × 1600. (Micrographs provided by the Regents of University of Michigan ...Vasoconstriction is normal contraction of smooth muscle in the artery wall. Do smooth muscle cells posses central nuclei but lack striations? Smooth muscle is not striated, hence the name smooth ...Note that the nuclei are relatively large, compared to skeletal muscle and they are in the center of the fiber. ... The following photograph shows the skin of the scalp which has bundles of smooth muscle running from the connective tissue to the hair follicles. These are the arrector pili muscles that help elevate the hair. ...From the smooth muscle histology slide, you might identify the following important histological features. #1. Smooth muscle cells or fibres of the longitudinal section #2. The nucleus of smooth muscle cells or fibres of the longitudinal section #3. Connective tissue surrounds the smooth muscle fibers or cells with fibroblasts #4.

Squamous cells are flattened and scale-like when mature. T. Nervous tissue consists mainly of neurons and collagen fibers. F - Nervous tissue consists mainly of neurons and supporting cells. Science. Biology. Histology. Chapter 4. Smooth muscle cells possess central nuclei but lack striations. VIDEO ANSWER:Hello students. Let us solve this question in this question we have to differentiate between skeletal muscle, smooth muscle and cardiac muscles. O…It has a single, centrally located nucleus, as shown in Figure \(\PageIndex{12}\). Constriction of smooth muscle occurs under involuntary, autonomic nervous control and in response to local conditions in the tissues. Smooth muscle tissue is also called non-striated as it lacks the banded appearance of skeletal and cardiac muscle. Facial muscles. Found in voluntary sphincters- lips, urethra, and anus. Table 10.1: Muscle Type – Structure, Function, Location. Figure 10.2 The Three Types of Muscle Tissue The body contains three types of muscle tissue: (a) skeletal muscle, (b) smooth muscle, and (c) cardiac muscle. The cytoplasm of smooth muscle is homogeneously eosinophilic; collagen always shows you that it is made of ropy fibers. You can usually just make out cell borders in smooth muscle. This is smooth muscle. With your study partners, find: the elongated, "cigar-shaped" nuclei of the smooth muscle cells; the deeply eosinophilic cytoplasm of the ...Study with Quizlet and memorize flashcards containing terms like skeletal muscle fibers, epithelial cells, smooth muscle fibers, cardiac muscle fibers, intercalated discs, Z discs, sarcomeres, tight junctions, sarcomere, skeletal muscle fiber, fascicle, cardiac muscle fiber and more.The best-known feature of skeletal muscle is its ability to contract and cause movement. Skeletal muscles act not only to produce movement but also to stop movement, such as resisting gravity to maintain posture. Small, constant adjustments of the skeletal muscles are needed to hold a body upright or balanced in any position.Striated muscle; formed of long, multinucleate, unbranched myocytes. Attached at one or either ends to a bony attachment point. Cardiac muscle. Striated muscle; formed of short, uninucleate, branching myocytes which connected at intercalated discs. Specialized muscle of the heart → myocardium. Smooth muscle.fasicle. 12 of 20. Term. Three discrete types of muscle fibers are identified on the basis of their size, speed, and endurance. Which of the following athletic endeavors best represents the use of red fibers? a. a spring by an Olympic runner. b. a long relaxing swim. c. playing baseball or basketball. d. mountain climbing.

There are three types of muscles: cardiac, skeletal, and smooth muscle. ... Unlike skeletal muscle, cardiac muscle fibers are branched cells with only 1-2 centrally located nuclei. Also unique to cardiac muscles are the ... In addition, cardiac muscle cells have a large number of myofibrils, which are specialized protein filaments that allow ...

Nov 1, 2021 · Skeletal muscle fibers count on nuclear numbers for growth. Skeletal muscle cells are noteworthy for their syncytial nature, with each myofiber accumulating hundreds or thousands of nuclei derived from resident muscle stem cells (MuSCs). These nuclei are accrued through cell fusion, which is controlled by the two essential fusogens Myomaker and ... Apr 16, 2023 · The smooth muscle fibers that are sectioned through their center show the larger oval nuclei. Again, the smooth muscle fibers sectioned at different places do not show any nucleus and appear as a deeply stained area of clear cytoplasm. Some focus of the labeled diagram shows a small cytoplasm with a small oval nucleus. Striated muscle; formed of long, multinucleate, unbranched myocytes. Attached at one or either ends to a bony attachment point. Cardiac muscle. Striated muscle; formed of short, uninucleate, branching myocytes which connected at intercalated discs. Specialized muscle of the heart → myocardium. Smooth muscle.Study with Quizlet and memorize flashcards containing terms like Which is true concerning muscle tissue?, Under a microscope you observe a tissue that appears to have long fibers that appear striated. The nuclei are pushed off to the side of the fibers. The tissue looks very vascular. What type of tissue are you observing?, All muscle cells contain striations. and more.Position of nuclei during muscle development as seen in cross-section (left) and longitudinal samples (right). As new nuclei (pink) are incorporated from myoblasts during fusion, they are rapidly moved to the center of the myotube by a process that requires the microtubule cytoskeleton (green). ... Number and spatial distribution of …Smooth Muscle Definition. Smooth muscle is a type of muscle tissue which is used by various systems to apply pressure to vessels and organs. Smooth muscle is composed of sheets or strands of smooth muscle cells. These cells have fibers of actin and myosin which run through the cell and are supported by a framework of other proteins.Chapter 9 Muscles and Muscle Tissue (TB) Home. Get App. Take Quiz. Create. With muscular dystrophy ________. A) muscles decrease in size due to loss of fat and connective tissue. B) most forms do not appear to be inherited. C) muscle fibers degenerate and atrophy.contractile unit of muscle. a muscle cell. thin connective tissue investing each muscle cell. plasma membrane of the muscle cell. a long, filamentous organelle found within muscle cells that has a banded appearance. Study with Quizlet and memorize flashcards containing terms like skeletal muscle, cardiac muscle, smooth muscle and more.Muscle Tissues. There are three types of muscle in animal bodies: smooth, skeletal, and cardiac. They differ by the presence or absence of striations or bands, the number and location of nuclei, whether they are voluntarily or involuntarily controlled, and their location within the body.Cardiac muscle cells branch freely. A junction between two adjoining cells is marked by a critical structure called an intercalated disc, which helps support the synchronized contraction of the muscle (Figure 17.3.1 17.3. 1 .b). The sarcolemmas from adjacent cells bind together at the intercalated discs.

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See the article " CaMKII (Ca 2+ /calmodulin-dependent kinase II) in mitochondria of smooth muscle cells controls mitochondrial mobility, migration and neointima formation " in Arterioscler Thromb Vasc Biol, volume 38 on page 1333. Vascular smooth muscle cells (SMCs) are essential components in blood vessel walls and responsible for maintenance ...Myoblast (early muscle cells with a single nucleus) fusing together to form myocytes (multinucleated muscle cells) during myogenesis. Muscle precursor cells are called myoblasts. Each Myocyte contains multiple nuclei due to their derivation from multiple myoblasts progenitor cells that give rise to myocytes. The nuclei of skeletal muscle tissue ...Study with Quizlet and memorize flashcards containing terms like Smooth muscle cells possess central nuclei but lack striations., Stratified cuboidal epithelium is rare in the body and found only in the pharynx, larynx, and anorectal junction., Sweat glands are apocrine glands. and more.The number of satellite cells per myofiber or per cross-sectional area may vary immensely between muscles. ... Vascular smooth muscle cells spontaneously adopt a skeletal muscle phenotype: a unique Myf5(-)/MyoD(+) ... Satellite cells as the source of nuclei in muscles of growing rats. Anat Rec 170:421-435 ...contractile unit of muscle. a muscle cell. thin connective tissue investing each muscle cell. plasma membrane of the muscle cell. a long, filamentous organelle found within muscle cells that has a banded appearance. Study with Quizlet and memorize flashcards containing terms like skeletal muscle, cardiac muscle, smooth muscle and more.Why do smooth muscle fibers in cross section have different diameters and why do some of these fail to show nuclei? Smooth muscle cells have tapered ends. Since the cells interdigitate different diameters would be revealed in a particular plane of section and the plane of section does not always go through the nucleus.Each FC fuses with a specific number of FCMs (2–25) and establishes a unique muscle with a specific size, shape, tendon attachment, and innervation [12,13]. Each embryonic muscle is composed of a single muscle cell with a relatively small number of nuclei, which is ideal for investigating molecular events underlying myogenesis in great detail.Abstract. Abstract Adult skeletal muscle fiber is a symplast multinuclear structure developed in ontogenesis by the fusion of the myoblasts (muscle progenitor cells). The nuclei of a muscle fiber (myonuclei) are those located at the periphery of fiber in the space between myofibrils and sarcolemma. In theory, a mass change in skeletal muscle ... ….

All Answers (3) Fiber length and size can vary considerably within a given muscle and between different muscles. Therefore, numbers of nuclei can range from 50-1000 per fiber. For instance in B6 mice an FDB fiber will contain about 30-50 nuclei, while a Soleus fiber can have up to 800. Does a muscle fiber have a nucleus?The most likely reason was that the number of nuclei N in the cells correlates with the cell area, and because all cell lengths are similar, ... roughly half the height of real muscle cells: number of nuclei: 7: roughly half the number of real muscle cells: initial positions: random: Nucleus: radius: 7μm: measurements: MTs per nucleus: 200 ...Possible Answers: The stomach—cardiac muscle. The heart—skeletal muscle. The small intestine—skeletal muscle. The aorta—cardiac muscle. The bladder—smooth …Position of nuclei during muscle development as seen in cross-section (left) and longitudinal samples (right). As new nuclei (pink) are incorporated from myoblasts during fusion, they are rapidly moved to the center of the myotube by a process that requires the microtubule cytoskeleton (green). ... Number and spatial distribution of nuclei in ...Smooth muscle is also present in the eyes, where it functions to change the size of the iris and alter the shape of the lens; and in the skin where it causes hair to stand erect in response to cold temperature or fear. Figure 1. Smooth Muscle Tissue. Smooth muscle tissue is found around organs in the digestive, respiratory, reproductive tracts ...Nuclei of smooth muscle cells. These cells show a very elongated fusiform nucleus which contains small nucleoli. The small incisures in the nucleus surface are due to a contraction of the smooth muscle fiber. Get this image for free. New customers can download this image at no cost with a risk-free trial.Skeletal muscle is composed of syncytial myofibres, each containing hundreds of nuclei. Through genetic reduction of the number of nuclei per myofibre, the authors confirm that more nuclei produce ...Possible Answers: The stomach—cardiac muscle. The heart—skeletal muscle. The small intestine—skeletal muscle. The aorta—cardiac muscle. The bladder—smooth …Abstract. The spatial density of mitochondria was studied by thin-section electron microscopy in smooth muscles of bladder, iris and gut in mice, rats, guinea-pigs and sheep. Morphometric data included areas of muscle cell profiles (~6,000 muscle cells were measured) and areas of their mitochondria (more than three times as many).The number of nuclei in the muscle bundle was determined, and mean cell size was estimated by dividing the total area of each muscle bundle by the number of nuclei in that bundle, and was ... Smooth muscle number of nuclei, The nuclei are centrally situated like that of smooth muscle. Cardiac muscle sarcoplasm has a great amount of mitochondria to meet the energy demands. Similar to the skeletal muscle, cardiac muscle cells have an invaginating network of …, May 24, 2007 ... ... number, and cell size within 24–48 h. Cells ... The abbreviations used are: VSMC, vascular smooth muscle cell; SMC, smooth ... nuclei. To determine ..., Examples of some of the human cell types mentioned in the main text. Nuclei are drawn in blue against the cytoplasm in pink.a Spherical and ovoid nuclei.b The lobed granulocyte lineage.c The lobed monocyte, and some of its differentiated macrophage stages.d Other shapes, including the polyploid megakaryocyte, fusiform fibrocyte and smooth muscle nuclei, and the condensed nucleus of a sperm, Smooth muscle fibers are spindle-shaped (wide in the middle and tapered at both ends, somewhat like a football) and have a single nucleus; they range from about 30 to 200 μ m (thousands of times shorter than skeletal muscle fibers), and they produce their own connective tissue, endomysium., Smooth muscle is also present in the eyes, where it functions to change the size of the iris and alter the shape of the lens; and in the skin where it causes hair to stand erect in response to cold temperature or fear. Figure 9.8.1. Smooth muscle tissue. Smooth muscle tissue is found around organs in the digestive, respiratory, reproductive ..., Unlike cardiac and smooth muscle, the only way to functionally contract a skeletal muscle is through signaling from the nervous system. ... fuse with up to hundreds of other myoblasts to form the multinucleated skeletal muscle fibers. Multiple nuclei mean multiple copies of genes, permitting the production of the large amounts of proteins and ..., O Presence or absence of regular arrays of thick and thin filaments O Presence or absence of actin and myosin O Presence or absence of gap junctions Number of cell nuclei O Presence or absence of a sarcoplasmic reticulum Question 2 1 pts Which statement about smooth muscle is true? O Smooth muscle is not under nervous system control O Actin and ... , Key ID. Cross Section | large central nuclei, uninucleated, binucleated or multinucleated, myofibrils located around periphery of cell. Longitudinal Section | large central nuclei, uninucleated, binucleated or multinucleated, striated banding pattern, intercalated disks (gap junctions), branching. Number of nuclei and myofibrils diminished in ..., You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: 2. Complete the following table. Muscle type Cell size/shape Nuclei (number & location) Striated (yes/no) Contraction (voluntary/ involuntary) Skeletal Smooth Cardiac Page 37 OB В. 52 ace. Here's the best way to solve it., Abstract. Skeletal muscle cells are noteworthy for their syncytial nature, with each myofiber accumulating hundreds or thousands of nuclei derived from resident muscle stem cells (MuSCs). These nuclei are accrued through cell fusion, which is controlled by the two essential fusogens Myomaker and Myomerger that are transiently expressed within ..., The cytoplasm of smooth muscle is homogeneously eosinophilic; collagen always shows you that it is made of ropy fibers. You can usually just make out cell borders in smooth muscle. This is smooth muscle. With your study partners, find: the elongated, "cigar-shaped" nuclei of the smooth muscle cells; the deeply eosinophilic cytoplasm of the ..., Another reason that nesprins are so relevant for the muscular laminopathies is the fact that heart and skeletal muscle are among the tissues with the highest expression levels of nesprin-1 (4, 144), and some isoforms (e.g. nesprin-1α 2) are only found in skeletal, cardiac, and smooth muscle (4, 212)., As in humans, Drosophila muscle fibers form by the fusion of diploid myoblasts, creating one cell with multiple nuclei- the myotube or muscle fiber (Figure 1A). The number of fusing myoblasts determines the number of nuclei per cell. Those nuclei then increase in ploidy via endoreplication, leading to an increase in gene expression …, Fiber length and size can vary considerably within a given muscle and between different muscles. Therefore, numbers of nuclei can range from 50-1000 per fiber. For instance in B6 mice an FDB fiber ..., From the smooth muscle histology slide, you might identify the following important histological features. #1. Smooth muscle cells or fibres of the longitudinal section #2. The nucleus of smooth muscle cells or fibres of the longitudinal section #3. Connective tissue surrounds the smooth muscle fibers or cells with fibroblasts #4., End-stage renal disease (ESRD) is a serious public health concern and the number of patients worldwide is increasing every year 1.Patients with ESRD primarily receive hemodialysis (HD) as renal ..., The number of muscle cells per motor unit varies from several to hundreds, according to how delicate movements the muscle performs, e.g.: ... Nuclei are of different sizes, in contrast to the smooth muscle nuclei, which are of similar size. Dense regular connective tissue: The collagen fibers are weaker eosinophilic., During development, multiple precursor cells fused together to form a single muscle cell. Each contributed a nucleus, giving the final cell multiple nuclei. The nucleus. ... Every eukaryotic species has a specific number of chromosomes in the nuclei of its body’s cells. For example, a typical human body cell would have 46 ..., Muscle tension depends on: Number of motor units recruited. Degree of muscle stretch. Relative size of the muscle fibers - the bulkier the muscle fiber (greater cross-sectional area), the greater its strength. Recruitment also helps provide smooth muscle action rather than jerky movements., a UMAP plot of transcripts detected in nuclei of uninjured and regenerating muscles. The colors identify different nuclear populations (left) or nuclei in uninjured or regenerating muscle (right ..., Note that each cell contains large numbers of nuclei. Cross striations can be seen, and are due to the structure of the sarcomere. A sarcomere consists of the structures between two Z lines. You should recognize: ... Smooth muscle may be studied using slide 029-1 smooth muscle ..., Figure 1. The body contains three types of muscle tissue: skeletal muscle, smooth muscle, and cardiac muscle, visualized here using light microscopy. Smooth muscle cells are short, tapered at each end, and have only one plump nucleus in each. Cardiac muscle cells are branched and striated, but short. The cytoplasm may branch, and they have one ... , Explain the role of muscles in locomotion. Muscle cells are specialized for contraction. Muscles allow for motions such as walking, and they also facilitate bodily processes such as respiration and digestion. The body contains three types of muscle tissue: skeletal muscle, cardiac muscle, and smooth muscle (Figure 1). Figure 1., Review. Control of vascular smooth muscle cell (SMC) gene expression is an essential process for establishing and maintaining lineage identity, contractility, and plasticity. Most mechanisms (epigenetic, transcriptional, and post-transcriptional) implicated in gene regulation occur in the nucleus. Still, intranuclear pathways are directly ..., Purpose: To assess the immunohistochemical profile of the atypical nuclei in leiomyoma with bizarre nuclei and compare with benign and malignant counterparts. Methods: 26 cases of uterine smooth muscle tumors including 12 leiomyosarcoma(LMS), 10 leiomyoma with bizarre nuclei (LBN) and 4 smooth muscle tumor with uncertain …, The nuclei are embedded in the cell membrane (5) to be just inside the cell. This type of tissue occurs in the muscles that are attached to the skeleton. Skeletal muscles function for the voluntary movements of the body. Muscle type 2) Smooth muscle cells are spindle-shaped (6), and each cell has a single nucleus (7)., Number of nuclei per cell Striations Organization of a sarcomere Cylindrical in shape Number of nuclei per cell Skeletal muscle _________. is the most widely distributed muscle in the body is controlled unconsciously by the nervous system is autorhythmic constitutes about 40% of the body's weight is all of the above, Using single cell RNA-sequencing, we identified and validated the in situ localization of three smooth muscle subtypes (prostate smooth muscle ... (in red) and basal epithelial marker KRT5 (in white). DAPI (in blue) labeled nuclei. (F) ... Interstitial and peri-epithelial fibroblasts had the largest number of interactions with endothelial cells, Activity 3. Muscle Tissue 3.1-Examine prepared slides of muscle tissues and note their characteristics. Compare your observations with the corresponding figures and, adjusting the magnification and focus, note the elongated cells, their shape and branching, the nuclei, striations and intercalated disks when present. 3.2-Complete the table below: Tissue Skeletal Musde Cardiac Musde Smooth Musde ..., Describe the characteristics of smooth, cardiac, and skeletal muscle as far as cell shape, number of nuclei, how they‚Äôre controlled. There's just one step to solve this. Who are the experts? Experts have been vetted by Chegg as specialists in this subject. Expert-verified. Step 1. Smooth muscle, cardiac muscle, and skeletal muscle are ..., From the smooth muscle histology slide, you might identify the following important histological features. #1. Smooth muscle cells or fibres of the longitudinal section #2. The nucleus of smooth muscle cells or fibres of the longitudinal section #3. Connective tissue surrounds the smooth muscle fibers or cells with fibroblasts #4., Comparison and Contrast: Number of Nuclei: Skeletal muscle has multiple nuclei per cell, while both cardiac and smooth muscles typically have a single nucleus per cell. Cell Shape: Skeletal muscle cells are long and cylindrical, while cardiac muscle cells are branched and cylindrical, and smooth muscle cells are spindle-shaped., Chapter 4, Tissues, introduced the three major types of muscle cells: smooth, cardiac, and skeletal. Muscle tissue comprises over six hundred skeletal muscle s, in addition to cardiac and smooth muscle s. The primary focus of this chapter will be on skeletal muscles as smooth and cardiac muscle s will be discussed in later chapters.. Development of Muscle Tissue