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What structural similarities are shared by all muscle tissue? What are the unique functional properties of this tissue?
To review:
The similarities of all muscle tissues and the functional properties of this tissue.Â
Introduction:
Muscle tissues are complex tissues made up of muscle cells that are surrounded by connective tissues. The muscle tissues form various visceral organs in the body such as the heart and lungs. Muscle tissues contribute to half of the body mass. These specialized tissues are majorly present in the animal body.Â
Explanation of Solution
The muscle tissues contribute a major amount in the mass of the body. Muscle tissues are of three types, namely cardiac, skeletal, and smooth muscle tissues. The similarities of these three muscle tissues are: they all generate heat, maintain the body postures, stabilize the joints, and move the essential substances in the body. The four functional properties of muscle tissues are as follows:Â
1. Contractility: A particular type of microfilaments known as myofilaments are responsible for muscle cell shortening. Muscle tissue tends to contract due to the presence of two proteins named actin and myosin. Actin and myosin produce the contractile force in the muscle cell.Â
2. Excitability: Muscle cell has the property of excitability. The muscle cells respond to the nerve impulse and hormonal stimulation in order to perform their function.
3. Elasticity: Muscle tissues possess the property of elasticity. Muscle tissues are capable of stretching, recoiling, and retaining their resting length due to the presence of elasticity.Â
4. Extensibility: Muscle tissues can extend themselves during several conditions. For example, at the time of digestion/ingestion or when the food bolus is present in the digestive tract, the muscle tissues stretch to accommodate the bolus.
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Chapter 10 Solutions
Human Anatomy
- Which of the following statements can CORRECTLY be made about muscle tissue? 1. The main characteristic of muscle tissue is its ability to contract, or shortens, making movement possible. II. Skeletal muscle fibers appear banded, with many cells at the periphery and under involuntary control. II. Cardiac muscle cells are cylindrical, not striated, and have a centrally located nucleus and under involuntary IV. Smooth muscle cells are tapered at each end, are not striated, and have a single control. nucleus and under involuntary control. O Statements I and IV are correct O Statements I, II, IV are correct O Statements 1, II, HI, and IV are correct O Statements II and II are correct 21 22 23 24 25 26 27 28 29 30arrow_forwardWhich type of muscle tissue has small, tapering cells with single nuclei and no obvious striations?arrow_forwardSuppose that a new type of muscle tissue is discovered and, like the other types, it generates tension. Would you expect this new tissue type to have the same basic structure as skeletal, smooth, and cardiac muscle tissues? Why or why not?arrow_forward
- What basic physiological properties do a nerve cell and a muscle cell have in common? Name a physiological property of each that the other one lacks.arrow_forwardOne of the primary characteristics of all muscle tissue is contractility, the ability to shorten (contract) and lengthen (relax). You've identified the various components of a myofibril above. Now, use the table below to indicate what occurs to each band, line, or zone when the muscle contracts vs. relaxes. What occurs to this region / structure during contraction/relaxation? Region / Structure A-Band H-Band I-Band M-Line Z-Line Zone of Overlap Sarcomere No change Shortens Lengthens Muscle Contraction Muscle Relaxationarrow_forwardContractile bundles occur in nonmuscle cells; these structures are less organized than the sarcomeres of muscle cells. What is the purpose of nonmuscle contractile bundles?arrow_forward
- Which muscle type has the most elaborate connective tissue wrappings? Please explain. What do striated mean relative to muscle cells? Please explain further.arrow_forwardDense regular connective tissue forms tendons, ligaments, aponeuroses, and fascia. Dense irregular connective tissue forms the reticular dermis, digestive tract submucosa, and organ and joint capsules. How does the arrangement of fibers in dense regular and dense irregular connective tissue determine the capacity for each tissue to withstand tension?arrow_forwardIn which muscle tissue do you find specialized cell junctions called intercalated discs that connect one cell with another .arrow_forward
- Which of the following statements can CORRECTLY be made about muscle tissue? 1. The main characteristic of muscle tissue is its ability to contract, or shortens, making movement possible. II. Skeletal muscle fibers appear banded with many cells at the periphery and under involuntary control. II. Cardiac muscle cells are cylindrical, not striated, and have a centrally located nucleus and under involuntary IV. Smooth muscle cells are tapered at each end, are not striated, and have a single control. nucleus and under involuntary control. O Statements I and IV are correct O Statements 1, II, IV are correct O Statements i, II, III, and V are correct O Statements Il and Itl are correct 21 22 23 24 25 26 27 28 29 30arrow_forwardWhat is the functional significance of the arrangement of collagen fibers in the dense regular and dense irregular connective tissue?arrow_forwardWhile the sarcoplasmic reticulum of muscle was first described by nineteenth-century microscopists, its true significance was not ap-preciated until its intricate structure was revealed much later by the electron microscope. What could you tell a nineteenth-century microscopist to enlighten him or her about the structure of the sarcoplasmic reticulum and its role in the coupling of excitation and contraction?arrow_forward
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning