Why is it important to remove acetylcholine from its binding to acetylcholine receptor once neural stimulus ends? What can be the possible consequence of non-removal of acetylcholine to the skeletal muscle fiber?

Q: The mechanism of muscle contraction is best explained by the sliding filament model. According to…

A: Answer :- Correct option is D actin and myosin The mechanism of muscle contraction is best explained…

Q: In the process of muscle contraction, which of the following steps immediately precedes the sliding…

A: Muscle cells are specialized for contraction. Muscles allow for motions such as walking, and they…

Q: The acetylcholine receptor is a ligand-gated channel that produces Multiple Choice   a)…

A: Ans- e. depolarization by allowing Na+ ions to enter the muscle fiber.

Q: You discover a mutant mouse whose skeletal muscles do not work properly.  You remove a piece of…

A: Acetylcholinesterase or acetylhydrolase is a cholinesterase enzyme primarily found at neuromuscular…

Q: If implanted electrodes were used to stimulate action potentials in gamma motor neurons to flexors…

A: When gamma motor neurons are activated, the striated ends of a muscle fiber are stimulated, thus…

Q: [ANIMAL PHYSIOLOGY] When an action potential from a motor neuron arrives at the neuromuscular…

A: ACTION POTENTIAL It is a rapid rise and subsequent fall in voltage or membrane potential across a…

Q: Which of the following factors can contribute to a contracted muscle returning to its resting…

A: Step 1 Muscles show three unique properties- contractibility, excitability, and conductivity. Muscle…

Q: Motor neurons innervate muscle fibers at specialized synapses called_______ . The release of…

A: In “motor neurons”, the cell bodies are located in the spinal cord, motor cortex, or brainstem. The…

Q: the given below option what step causes a sarcomere to shorten? cross-bridge formation  calcium…

A: The component of a muscle fiber that contracts is called a sarcomere. Actin and myosin make up the…

Q: Which of the following does NOT occur in or immediately prior to a muscle contraction? action…

A: NOTE- As per our honor code, we are authorized to answer only three multiple questions at a moment.…

Q: Which of the following is NOT associated with cardiac muscle contraction?   Contraction requires…

A: Cardiac muscle is one of the three types of vertebrate muscles. It is an involuntary, striated…

Q: How is muscle contraction stopped? Which of the following is/are correct?   A) The brain stops…

A: The process of muscle contraction is a sequence of events that are responsible for the contraction…

Q: Which role do gamma (γ) motor neurons play in the function of a muscle spindle? Select one: a.…

A: Gamma motor neurons work in muscle contraction and represent 30 percent of the group A nerve fibers…

Q: What is the function of calcium in muscle contractions? to bind to troponin and change its…

A: Skeletal muscles are a special type of muscles made up of contractile tissue. They are a type of…

Q: How does the activation of vertebrate skeletal muscle differ from the activation of arthropod muscle…

A: Arthropods are lower animals and their complexity is not profound as compare to the higher animals.…

Q: A skeletal muscle motor unit   A.Is the number of muscle cells innervated by one motor neuron. B.Is…

A: The skeletal system consists of bones and muscle fibres. These muscle fibres help in contracting and…

Q: Calcium ions are responsible for unmasking of active site on which protein for cross bridge activity…

A: The muscle fibers contain sarcomeres that are the structural units responsible for muscle…

Q: Skeletal muscle cells undergo contractions based on a molecular mechanism involving: 1)the sliding…

A: The skeletal muscle cells contract by using myosin and actin filaments. These cells are accountable…

Q: How are motor neurons involved in muscle contractions? Select all that apply. The release of calcium…

A: It is a neuron whose cell body is located in the motor cortex, brainstem or the spinal cord and…

Q: The following list of events take place during a muscle contraction.  Place the events in…

A: Muscle contraction is tension generating site activation within the muscle fibers. The muscle…

Q: Which of the following is associated with smooth muscle contraction? Troponin as…

A: Muscle cells are specific for contraction. It allows for motions and facilitates bodily processes…

Q: Which of the following would be recruited in a muscle stimulation when contractile strength…

A: Small motor units, typically consisting of one nerve and a few muscle cells, are recruited first.

Q: Briefly explain the steps involved in a single muscle contraction beginning at the neuromuscular…

A: Muscles are tissues that can contract and expand. The muscles can be grouped into three types based…

Q: Muscles vary greatly in terms of their endurance. The gluteus medias is an important stabilizer…

A: The ability of a muscle group or individual muscle to undergo repeated contractions for a long time…

Q: One neuron and all the skeletal muscle cells it stimulates make up one The position on the muscle…

A: Neuron is a nerve cell present in the nervous system which helps to transmit information to the…

Q: What are the two types of muscle movement categories? Give an example for both. Describe…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: At what point during excitation contraction coupling does exocytosis play a role? Group of answer…

A: Excitation - contraction coupling in the skeletal muscle is the sequence of events through which the…

Q: With regard to muscle contraction, which of the following is an INCORRECT statement with regard to…

A: The muscle cells contain a striped pattern or striations which is formed by a series of basic units…

Q: After nervous stimulation stops, what prevents acetylcholine in the synaptic cleft from continuing…

A: Hello! Since you have posted multiple questions, we are answering only first questions. If you need…

Q: the

A: Muscle contraction:- Is the response  a muscle has to any kind of stimuli where the result is…

Q: Which of the following is true when a muscle is at rest: calcium ions bind to the troponin complex…

A: Muscle contraction is the activation of tension-generating sites within muscle cells.

Q: re these True or False? Receptors on the post-synaptic cell membrane that bind the acetylcholine…

A: When two molecules of acetylcholine bind a nicotinic Acetylcholine receptor, a conformational change…

Q: Skeletal muscle cells have the ability to do all of the following EXCEPT _____.     activating…

A: Skeletal muscle is a type of three major muscle types, the others being cardiac muscle and smooth…

Q: What is the role of calcium in muscle contractions? Multiple Choice   a) To spread the action…

A: Muscle contraction It is the activation of tension-generating regions in the muscle fibers. It…

Q: Please help Why does TTX reduce the response caused by nerve stimulation and also the

A: Tetrodotoxin is a type of potent neurotoxin. Its name derives from the Tetraodontiformes, an order…

Q: In muscles, acetylcholine is released by the _________________________and opens specific channels…

A: Answer : Motor  neuron , Sodium Ion

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: During which step of a muscle contraction cycle is ATP needed? when myosin head does a power stroke…

A: Muscle contraction occurs when tension is generated in the muscle fibers. It occurs due to the…

Q: What neural or hormonal signal caused the change in MAP observed with prolonged muscle contraction?…

A: Concentric gestures are used in exercise to target muscles that perform action. The more strength is…

Q: Interruption of spindle discharge from a muscle causes contraction of the muscle to become jerky and…

A: Muscle spindle is small, spindle-shaped sensory receptors located in skeletal muscle tissue and they…

Q: The fast fatigable motor units are used predominantly for which of the following activities?…

A: Fast fatigable motors are used when large forces for a short time are required.

Q: A toxin produced by certain kinds of spiders increases the release of acetylcholine at the synaptic…

A: The special toxin produced by the spiders are Botulinum toxin is a venom.

Q: Order the events leading to muscle contraction. Ca ions bind to troponin myosin binds to actin…

A: Muscle contraction It is defined as the muscles tightening or lengthening during performing an…

Q: Motor neuron 1. 4 Muscle fiber nucleus Myofibril of muscle fiber Figure 10.15. Details of the…

A: A neuromuscular junction is a chemical synapse that is formed by the contact between a motor neuron…

Q: The muscle relaxes if no new nerve signal arrives. However the neurotransmitter from the previous…

A: The force exerted by the muscle is less than its maximum in a concentric contraction, and the muscle…

Q: What is the physiological mechanism that produces a quick and efficient skeletal muscle response to…

A: The brain is a mass of nerve tissue present in the head of an organism. The brain is also termed as…

Q: Calmodulin is found in smooth muscle cells and performs a similar function to troponin in striated…

A: Smooth muscle is found in the walls of hollow organs like your intestines and stomach. They work…