Combining your knowledge of rates of diffusion with yourknowledge of muscle physiology, explain why it is advantageousfor oxidative muscle fibers (which depend on aerobic metabolismto generate ATP) to have smaller diameters than glycolyticmuscle fibers have.

Q: Most skeletal muscles contain which of the following? O fast twitch fibers O slow twitch fibers O…

A: * Skeletal muscle functions in voluntary actions hence called as voluntary muscle. *Skeletal muscles…

Q: What special terms are given to the plasma membrane, cytoplasm, and smooth ER of a muscle cell?

A: The skeletal muscles have a striated appearance, and these muscle tissues are under the voluntary…

Q: ATP within actin subunits is hydrolyzed after assembly into a filament but before disassembly from…

A: During the lifespan of an F-actin filament, most subunits hydrolyze a single molecule of ATP to ADP.

Q: Antigarvity muscles maintain stretch reflex for prolonged periods withoutfatigue, because :-a- they…

A: The stretch reflex is a muscle contraction in response to stretching within the muscle. The major…

Q: Explain why skeletal muscle cells contain many mitochondria.

A: Mitochondria is a cell organelle found in the cytoplasm eukaryotic cell. It is a double…

Q: There are no known motor proteins that move along intermediate filaments, in contrast to the variety…

A: The cytoskeleton does the mechanical support, motility and maintenance of the cellular structure in…

Q: How do calcium ionsparticipate in musclecontraction? Why do bothmuscle contraction andmuscle…

A: Muscle contraction is the process of activating tension generating sites in the muscle fibers.…

Q: The contraction of skeletal muscle fibers is prevented by regulatory proteins located on the: O thin…

A: Muscle contraction is referred to as the tightening of the muscles present in the body of an…

Q: Fast-twitch muscle fibers have which of the following characteristics?a. fewer number of…

A: Fast twitch muscle is a muscle which helps you to do short and quick responses

Q: Thick myofilaments consist mainly of the protein _____.

A: Thick myofilaments consist mainly of the protein called Myosin.

Q: Recently, it has been observed that several muscle diseases and disorders are linked to problems…

A: Some individuals with inherited genetic mutations are susceptible to malignant hyperthermia. Certain…

Q: Why do muscle cells use creatine phosphate insteadof glycolysis to supply ATP for the first few…

A: ATP or adenosine triphosphate provides the energy for muscle contraction.For ATP regeneration, three…

Q: How does smooth muscle differ from skeletal muscle withrespect to its source of calcium and its…

A: The muscular tissue is composed of cells that have the responsibility of contraction and are called…

Q: Describe the structural features of smooth musclecells and contrast them with skeletal musclefibers.

A: The muscular tissue is made up of cells that are specialized for contraction and are called muscle…

Q: Skeletal Muscle Smooth Muscle Cardiac Muscle Striated? [a] [b] [c] [f] # of Cells? [d] [e] Shape?…

A: Tissue comprises of structurally and functionally similar cells. It is a level of organization in…

Q: Explain the functions for which each type of muscle fiber isbest adapted and how slow-twitch and…

A: Muscle tissue is a specialized tissue found in animals which allows movement. Muscle tissue…

Q: hypoventilation builds up carbon dioxide in the body which causes respiratory acidosis. This would…

A: “Hypoventilation” is a state that occurs when there is inadequate ventilation. The amount of oxygen…

Q: In a long period of intense exercise, why does muscle generate ATP anaerobically at first and then…

A: Muscle is one of the four primary body tissues which is mainly responsible for the movement in the…

Q: Based on your understanding of skeletal muscle fiber physiology, which of the following processes is…

A: ATP is the adenine tri phosphate and is the instant source of energy .It is used in many of the…

Q: The human body has mainly two types of muscle fibres: slow-twitch and fast-twitch.  The { slow or…

A: Individual muscle fibres make up skeletal muscles. Not all muscle fibres are the same, much like…

Q: Why is muscle that has sustained significant damageunable to produce the same amount of power as it…

A: The muscle is a type of contractile tissue. It provides contractibility, elasticity, and…

Q: In the absence of _____, a contracted skeletal muscle will not relax but will develop rigor mortis…

A: Introduction After the death of an individual, several changes take place inside the dead body. The…

Q: Skeletal muscles would be expected to contain large numbers of ————— because of their high energy…

A: Skeletal muscles are specialized contractile tissue found in animals. they are found between bones…

Q: Which of the following is NOT true of fast oxidative skeletal muscle fibers? All of the above…

A: Introduction: Muscular fibres are cells found in muscle tissue that are designed specifically for…

Q: Thick and thin myofilaments have different properties. For each phrase below, indicate whether the…

A: Myofilaments are the parallel striated muscle cells or muscle fibres that constitute the fasicles…

Q: Describe how glycolysis, creatine, and mitochondria are important to a skeletal muscles fiber's…

A: ATP provides the energy required for muscular contraction. In addition to its direct role in the…

Q: What visible features of the neuromuscular junction (NMJ) muscle tissue indicate that it is skeletal…

A: There are three muscle types, namely, smooth muscle, cardiac muscle, and skeletal muscle. The…

Q: What do you mean by myosin myofilaments?

A: Muscles consist of munerous muscle fibres. Each muscle fibre contains many myofibrils having…

Q: Muscle fibers may be oriented in many ways. The type of orientation where there is a belly, plus a…

A: Muscle fibers may be oriented in many ways. The type of orientation where there is a belly, plus a…

Q: The muscle fibers with the fastest contractions are slow oxidative fast oxidative O fast glycolytic…

A: The muscles are responsible for movement of body parts. These are also involved in generating heat…

Q: Some smooth muscle has the ability to contract spontaneously—that is,it contracts without any…

A: Smooth muscle can be defined as one of the muscle types found in humans which is made up of multiple…

Q: How do smooth muscle cells differ from skeletal musclefibers in their electrical properties?

A: Muscles are referred to as the contractile is of tissues of the body that are responsible for…

Q: The disease poliomyelitis (po′le-o-mi′˘e-li′tis) destroys motor neurons, causingloss of muscle…

A: Poliomyelitis is caused by a virus that may cause paralysis in the person. Poliomyelitis can be…

Q: The next time you sit down to a turkey dinner, you may beasked if you prefer the “white meat” or the…

A: Muscle are the organs of the muscular system and it is made up of muscle fibers. There are basically…

Q: The diagram below represents the terminal cisterna in a muscle. Name and briefly explainthe function…

A: Nerve Impulse: It all starts with a nerve impulse reaching the neuromuscular junction, where a motor…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.