4. As skeletal muscle shortens with contraction, the length of the I band remains constant as the length of the A band decreases 5. Excitation-contraction coupling is the sequence of events that links the action potential to changes in skeletal muscle force development

Q: 3. A patient has arthritis in the knee, which led to his inability to fully extend his knee, what is…

A: Here,   a patient having arthritis in the knee, which led to his inability to fully extend his knee.…

Q: 11. Arrange the following in statements in the order that they occur, by adding a number: nf.e ACh…

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Q: I1. Electrical impulses in muscle fibers are called 12. Groups of muscle fibers are that are…

A: The movement of skeleton muscles is voluntary in nature and regulated by central nervous system.…

Q: The dark A band of a sarcomere contains regions where the actin and myosin filaments overlap.  True…

A: The sarcomere is the basic unit of muscle fibers that is responsible for the contractile function.…

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A: Neurotransmitters are chemicals secreted by neurons that carry information from one neuron to the…

Q: What happens if ATP is not available in the sliding filament theory?  When is the maximum force…

A:

Q: Unlike skeletal muscle cells, cardiac muscle cells________."   A do not use the sliding filament…

A: Muscle is a soft tissue present in various animals.Muscle cells are composed of protein filaments of…

Q: Myosin

A:

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: Why is atropine used minimally in the management of diseases?

A: Anticholinergic drugs are those drugs which have ability to antagonise the function of cholinergic…

Q: 3. Smooth and cardiac muscle are innervated by the autonomic nervous system whereas skeletal muscle…

A: The nervous system can be divided into two functional parts namely, a) The somatic nervous system b)…

Q: 10. Which of the following is a calcium release channel? A)Ryanodine receptor B)Tropomyosin C)DHP…

A: A calcium channel can be defined as an ion channel that is selectively permeable to the calcium…

Q: In both smooth and skeletal muscle calcium must be actively transported out of the fluid surrounding…

A: As per our honor code, we are authorized to answer only one question at a moment. As you have not…

Q: 29- Which of the following binds to Ca to trigger muscle contraction: A. Tropomyosin B. Troponin C.…

A: Skeletal muscles are usually attached to bones and tendons composed of connective tissue . Thin…

Q: The function of ATP during muscle contraction is toa. cause an allosteric change in myosin so it…

A: ATP(adenosine triphosphate) causes an allosteric change on myosin so it detaches from actin 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: 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: 5. Cardiac muscle cells have the unique ability to demonstrate ________. A. graded strength B.…

A: The heart is a muscular organ liable for maintenance of blood flow. It achieves that work by its…

Q: 4. Draw and label a neuromuscular junction showing how a nerve impulse stimulates muscle…

A: According to our guideline we can answer only the first question. So upload second questions…

Q: 3. The calcium that permits neurotrasmitter release from the alpha motor neuron is recycled and used…

A: The statement "The calcium that permits neurotrasmitter release from the alpha motor neuron is…

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A: Breathing exercise is an exercise which is done intentionally for the promotion of healthy and…

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

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Q: 6 As calcium is actively reabsorbed into the sarcoplasmic reticulum, its concentration at the…

A: Excitation–contraction coupling: It is a physiological process which involves the conversion of an…

Q: At a Neuromuscular junction the nerve impulse travels through the: A. Pores in the membrane B.…

A: Action potential generates when the neurons want to pass the information along the body from its…

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Q: List the events occur at the neuromuscular junction.asap

A: Introduction The neuromuscular junction, also known as the myoneural junction, is where a nerve…

Q: 12. Draw one labeled graph with two myograms: a single twitch contraction for a Type 1 fiber, and…

A: The skeletal muscle fibers can be differentiated primarily based on how speedy they can go through…

Q: 3. Draw the differences among striated or skeletal muscle, smooth muscle and cardiac muscle.

A: Skeletal muscle helps in movement. Cardiac muscle help in contraction, & Smooth muscle helps in…

Q: 1. Which muscle type has the most elaborate connective tissue wrappings? EXPLAIN.

A: As per our guidelines we are allowed to answer only one question, please repost the next one.…

Q: 8. How would the increased stimulus intensity lead to more muscle activity (i.e., increased force)?…

A: Introduction :- The neuromuscular junction (NMJ) is a kind of synaptic connection which is formed…

Q: Which neurotransmitter triggers a muscle contraction?

A: The chemical compound that work as messenger transmit message across the synapse from a nerve cell…

Q: 1) Describe in detail the process of synaptic transmission at the neuromuscular junction.

A: Synaptic transmission at neuromuscular junction:  The neuromuscular junction is a connection between…

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: 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: 4. In temporal summation, why are subsequent contractions increasingly stronger

A: Neurons are constantly getting information from the thousands of other neurons in their environment.…

Q: 18. The binding of calcium to troponin will directly cause A. the hydrolysis of ATP B. the binding…

A: Troponins are a group of proteins that are found in the skeletal and muscle fibres of the heart. It…

Q: 1. A receptor absorbs the energy of a stimulh by means of a. Reception b. Transmission c.…

A: Physiology is defined as the study of the way the human body works. It tells the basic and complex…

Q: 1 pts List the following events in order as they would occur inside a skeletal muscle fiber: 1)…

A: The signals of contraction of muscles are carried by the nerves at the neuromuscular junction…

Q: 5. What would happen if tropomyosin couldn't change confirmation in the presence of Ca2+ binding to…

A: When the muscle cell is stimulated to contract by an action potential, calcium channels open in the…

Q: 6. As skeletal muscle shortens with contraction, the length of the I band remains constant as the…

A: Skeletal muscles are voluntary muscles. The contraction and relaxation in the skeletal muscle enable…

Q: 1. Which of the following would you find in the synaptic cleft of an alpha motor neuron and a muscle…

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

Q: 1. Compare the excitation-contraction coupling in the three types of muscle. Skeletal muscle Smooth…

A: In this chart we have two discuss difference between muscles. Muscles protact body ,help in moment…

Q: In smooth muscle, what mediates calcium that activates myosin light-chain kinase that leads to…

A: Myosin light chain kinase  plays key role  in actin and myosin interaction of smooth muscle. The…

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A: Muscle is a soft tissue found in animals which consists of actin and myosin that slides over each…

Q: During muscle contraction, the cross-bridge detaches when ________.a. the myosin head binds to an…

A: Muscles can change their length in the response to a stimulus.

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.