33. Which of the following sentences is NOT correct? A. Cancellous bone (trabecular) is spongy bone B. White fibers make up fast-twitch muscle C. Muscle spindle is a type of receptor that detects muscle length D. Exocrine gland secretes its product directly into the bloodstream E. When an action potential is generated within a motor neuron, every muscle cell of the motor unit is stinulated to contract

Q: Identify the longest muscles in the body and outline the two major joint it crosses 2. In terms of…

A: The 3 types of muscle tissue are cardiac, smooth, and skeletal. Cardiac muscle cells are located in…

Q: 7. A severe laceration to a wrist completely severed a major muscle tendon. To suture the ends of…

A: The tension or force applied to a muscle when it is stretched without any active contraction is…

Q: 35- which of the following is least likely to be a feature for brief- movement muscle: A.…

A: During muscle movement/contraction, CNS send signal through motor neurone which releases Ach at…

Q: Satellite cells *         A- are muscle stem cells       B- are located between the plasma membrane…

A: Myosatellite cells, otherwise called satellite cells or muscle stem cells, are little multipotent…

Q: Which region of the sarcomere does not change length between muscle relaxation and muscle…

A: Muscle is a kind of tissue as it is made up of group of cells. It is one of the four kind of primary…

Q: 8. Assuming two skeletal muscle fibers have the same myosin ATPase activity, and both are producing…

A: Isotonic contraction :- During isotonic contraction of muscle, same tension maintained while the…

Q: During muscle isometric tension, the maximum tension occurs when: O a. There is no overlapping…

A: Isometric contraction occurs when muscle length remains relatively constant as tension is produced.…

Q: To demonstrate muscle fatigue, a student held an 8 lb dumbbell in her hand and abducted her arm…

A: Ans - the correct answer for the above question is- A) Different motor units were contracting while…

Q: Which of the following choices is CORRECT? A Myofibrils extend the length of a muscle fibre B.…

A: In muscles the sarcomer is termed as the fundamental unit. The sarcomer helps in the contraction.…

Q: The release of which of the following minerals from muscle cell storage sites stimulates muscle…

A: Sarcoma muscles store calcium in sarcoplasmic reticulum. It gets released when a muscle cell or…

Q: Considering the force of contraction of a skeletal muscle fiber,wave summation occurs because ofa.…

A: Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of myosin and…

Q: The decrease in active force that occurs at lengths longer than the optimal length is caused by: O…

A: According to the question, the decrease in active force that occurs at lengths longer than the…

Q: Which of the following does NOT contribute to muscle fatigue? A. K+ accumulation B. ADP and…

A: Introduction Muscle fatigue is a condition in which muscles loses the ability to perform overtime.…

Q: Which of these statements below would NOT BE TRUE regarding skeletal muscle activity? O most muscles…

A: Skeletal muscles are the voluntary muscles which works with the will of a person. These muscles are…

Q: Which of the following sentences is NOT correct? A. Cancellous bone (trabecular) is spongy bone B.…

A: Among the given statements, the final statement seems incomplete. So I am providing solution…

Q: What happens in a muscle twitch? a. Myosin grabs a thick myofilament. b. Sarcomeres shorten during…

A: Muscle twitches can occur for heaps of reasons like stress, an excess of caffeine, a horrible eating…

Q: Fast oxidative glycolytic fibers in skeletal muscle are used Select one: O a. intermittently, for…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

Q: Which of the following is the site of calcium ion storage within muscles? a. T tubules b.…

A: Muscles are the body tissues that are principally accountable for causing movement in the body.…

Q: During muscle contraction, the I band a. hides the H zone. b. shortens or narrows. c. overlaps the Z…

A: SARCOMERE It is the complicated unit of striated muscle tissue. It is the repeating unit between two…

Q: The best way to maintain optimum skeletal alignment and reduce risk of joint injury is to... A -…

A: Fitness is a very important criteria to maintain the health of the joint and for fitness good…

Q: Put the following events of excitation-contraction coupling in the order in which they occur. 1.…

A: The term excitation-contraction coupling (ECC), first coined by Alecxander sandow in 1952, describes…

Q: Which of the following statements about the connective sheath of skeletal muscle is true? a. the…

A: Muscles are responsible for providing the movement to the body. It also releases heat.

Q: 1. When this is released by the synaptic vesicles, it causes a change in the muscle fiber membrane…

A: The phenomenon of difference in electric potential between the cell’s inside and the cell’s outside…

Q: Match each description to the correct phase of a muscle twitch 73. Sección Ca2+ transported back…

A: Muscle contraction happens when the slender actin and thick myosin fibers slide past one another. It…

Q: The actual contractile units of muscle, called _____, extend from middle of one _____ to middle of…

A: Muscles are referred to as the soft tissue of the body, contraction, and relaxation of the muscle is…

Q: Muscle contractions where the muscle shortens but tension remains constant are called A. isometric…

A: Muscular system is a type of body system in which regular contraction as well as relaxation leads to…

Q: During muscle contraction, binding sites for myosin are uncovered by the movement of A. Tropomysin…

A: A. Tropomyosin   During muscle contraction, the binding sites for myosin on the actin filament are…

Q: 10. Which of the following skeletal muscle fiber structure is not part of the “triad”? a. sarcomere…

A: Muscle tension can be generated without changes in muscle length, for as while holding a heavy book…

Q: Which of these statements below would NOT BE TRUE regarding skeletal muscle activity? most muscles…

A: A muscle is a group of tissues that aid in movement of different parts of our body. They are made of…

Q: 17. Which of the following properties of the structure of skeletal muscle is not true?   A.…

A: The skeletal muscles or voluntary muscles are attached to bones and are involved in locomotion.

Q: How is the muscular contraction stopped (i.e.: how does a muscle relax after contraction)? 1. The…

A: Muscle Contraction is triggered when an action potential travels along the nerves to the muscles.…

Q: 24. Which of the following is true concerning the role of Calcium in the contraction of muscle-…

A: A soft tissue derived from the mesoderm layer during embryonic development that functions to assist…

Q: What causes relaxation in a skeletal muscle fiber Select one: a. Myosin remains attached to actin b.…

A: Each skeletal muscle is an organ that consists of various integrated tissues. These tissues include…

Q: When the length of the muscle stays the same but the force increases during contraction it is…

A: The muscular system of the body is made up of three distinct types of muscle fibers which differ…

Q: 8. Neurons release acetylcholine, which binds to receptors on muscle cell membranes, stimulates an…

A: Muscle is categorized under three categories such as 1) Voluntary muscle /Skeletal muscle .       2)…

Q: Which of the following is a microscopic feature of a skeletal muscle fiber? a. It contains multiple…

A: Skeletal muscle is found tethered to bones. It has fibers with many nuclei. Skeletal muscles are…

Q: Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the…

A: Neural impulse or a nerve impulse refers to a signal that is transferred along the nerve fiber. It…

Q: C 5. State the structure and function of each of the following parts of a muscle fiber. (See pg. 13…

A: All the muscles in the body are contractile and mesodermal in origin. Muscles are classified into…

Q: 27- The calcium ions those are needed for muscle contraction are stored in: A. Transverse tubules…

A: The correct option is b sarcoplasmic reticulum Sarcoplasmic reticulum: a smooth endoplasmic…

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.