QUESTION 20 A plank would be an example of what type of exercise? OA Isotonic muscle contraction OB. Isometric muscle contraction O C. Isolytic muscle contraction O D. Concentric

Q: QUESTION 10 Endurance training increase the number of: O slow fibers, which are fatigue-resistant O…

A: Muscle fibres can be defined as the muscle cells that are functionally accountable for controlling…

Q: question 3

A: 1. With age the collagen increases in the tissues. Collagen is stiff as compared to muscles.

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: During sarcomere contraction, which of the following does NOT change length? A the distance between…

A: 1. troponin, tropomyosin and myosin After the release of calcium from the sarcoplasmic reticulum,…

Q: What is the molecular explanation for the observation that the I band appears to shorten in a muscle…

A: The basic contractile unit of muscle fibre is the sarcomere. Each sarcomere is made up of two…

Q: When an individual sarcomere undergo contraction, which of the following happens? H band and I band…

A: A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main…

Q: A protein that allows the muscle to function as if it has an internal spring is a. titin b. actin c.…

A: Skeletal muscle is a type of muscle among the three major types of muscles. The other 2 are cardiac…

Q: 30- Which of the following is true about muscle contraction: a- Results by the actin sliding along…

A: Muscle contraction us the tightening , shortening or lengthening of muscles when you do some…

Q: Hill's equation gives a relation between muscle contraction rates νν and muscle tension TT…

A: We have to rewrite the equation in a form to show that T is dependent on v including T0, alpha and…

Q: QUESTION 16 Which of the following term does not fit with smooth muscle? O A. Fusiform O B. Dense…

A: The objective of the question is to identify the term that does not associate with the…

Q: UESTION 1 nge the three types of muscle from the one in which the calcium that causes contraction…

A: Sarcomere is the contractile unit of each muscle. The contractions in muscle cells are initiated by…

Q: O People with high blood pressure O People with migraines O People with obstructive lung disease O…

A: 1. In the given question people with obstructive lung diseases should avoid the beta-blockers and in…

Q: Considering these events, what is the right sequence in muscle contraction? i. Ca2+ released from…

A: Muscles are the connective tissues that are involved in the movement by their contraction and…

Q: QUESTION 10 Which of the following is not a phase of muscle contraction? O A. Excitation O B.…

A: The question is asking us to identify which of the given options is not a phase of muscle…

Q: Question 30 How does muscles stabilize the skeletal system? Muscles... ...create torques at skeletal…

A: Muscles are attached to bones via tendons & are responsible for producing movement and…

Q: What is the function of the transverse tubules? conduct ATP molecules out of the mitochondria…

A: Skeletal muscle is responsible for movement of various parts of the body and locomotion. This…

Q: What happens when troponin and tropomyosin block the active sites of actin? O The muscle contraction…

A: Troponin is basically a complex of three regulatory proteins which are troponin I, troponin C, and…

Q: Select ALL that would INCREASE the strength of a muscle contraction: recruiting more slow-twitch…

A: Skeletal muscle cells are long and cylindrical, has voluntary control in action that is in under our…

Q: 7. Identify each of the following when given images of skeletal muscle fibers such as the ones…

A: The nerve impulses from the axon terminal of motor neuron goes to the skeleton muscles. The junction…

Q: What is the function of acetylcholinesterase? O a. to prevent undesired continuous contractions O b.…

A: Acetylcholinesterase is an enzyme that is available at the postsynaptic membrane of the…

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: Question 28 Which of the following statements regarding the health effects of exercise is false? O…

A: Aerobic exercise is a fitness routine that involves burning of calories that require oxygen in the…

Q: D Question 38 1 pts You take a human smooth muscle cell and block the release of calcium from the…

A: Q 38.) :- ans.In smooth muscle cells, contraction is triggered by the presence of calcium ions…

Q: Which of the following is NOT correct regarding muscle contraction? A neurotransmitter is released…

A: A muscle is composed of a group of muscle fibers, and the plasma membrane of the muscle fiber is…

Q: QUESTION 2 During muscle relaxation, calcium returns to the sarcoplasmic reticulum via: Calcium…

A: Sarcomeres are the fundamental functional units of the muscle cell, which helps in contraction and…

Q: The site where the motor nerve impulse reaches the muscle fiber is called the Z lines action…

A: The site where the motor nerve impulse reaches the muscle fiber is called the neuromuscular…

Q: The part of the muscle that is enclosed in perimyskum. The part of a muscle fiber that aids in…

A: Hello you have asked multiple subparts questions. We will be able to answer only first three. For…

Q: None of the other answers. O Contract more quickly O Contain less myoglobin ESTION 4 muscle, when…

A: The two types of skeletal muscle fibers are slow-twitch (type I) and fast-twitch (type II). Twitch”…

Q: Question 6 of 16 Which of the following is mismatched with its function in muscle contraction?…

A: Introduction: Muscle contraction is defined as the change in length of the muscle , it can include…

Q: QUESTION 6 At the neuromuscular junction, a neurotransmitter called open, allowing an influx of OA.…

A: The question is asking about the specific neurotransmitter and ion involved in the process of muscle…

Q: 11 The picture below shows a sarcomere (from muscle):   Which letter best indicates the thick…

A: Skeletal muscle- Skeletal muscle forms about 40-50% of body mass and is responsible for movement and…

Q: 13 QUESTION 13 Which of the following is a characteristic of Slow-twitch (Oxidative) muscles? O A.…

A: The question is asking to identify the characteristic that is associated with slow-twitch…

Q: Question 4 of 16 The physiologic event that takes place at the sarcolemma of a skeletal muscle cell…

A: The skeletal muscles are under the control of central nervous system that regulates the contraction…

Q: QUESTION 3 In a contracted muscle, sarcomeres are ○ A stretched; also stretched O B. narrowed; the…

A: The objective of the question is to understand the changes in the sarcomeres, the basic units of…

Q: v a two-state model of a muscle sarcomere - representing relaxed and contracted forms. are your…

A: Muscle fibre consists of A and I bands. These bands are formed due to the regular parallel and…