What signal does the IIA afferent send? It signals the alpha motor neuron to contract the extrafusal muscle fibers

Q: γ-motor neuron discharge to a muscle is inhibited by impulses reaching the γ-motor neurons from all…

A: A gamma motor neuron cell bodies are located in the anterior grey column of the spinal cord. A gamma…

Q: This patient was given potassium ions intravenously and regained normal muscle functioning in a very…

A: Potassium is a mineral, our body cells need this, it regulates our major body parts functions such…

Q: Draw a muscle spindle surrounded by a few extrafusal fibers. Indicate the location of primary and…

A: Muscle is contractile tissue clustered together to achieve greater productivity in organized…

Q: Which of the following would result in higher force production at lower action potential frequencies…

A: How we produced higher force at lower action potential frequency.

Q: Why does Na+ diffuse into the muscle cell after the AChreceptor is activated?

A: Acetylcholine is a principal neurotransmitter that helps in the conduction of nerve impulses within…

Q: In what ways does the neural control of smooth muscle activitydiffer from that of skeletal muscle?

A: Muscles are contractile tissues grouped and coordinated in function. Three groups of muscles present…

Q: View the University of Michigan WebScope at…

A: To find: With what structures in a skeletal muscle are the endoneurium, perineurium, and epineurium…

Q: what of these nerve fiber has action potenital moving toward the central nervous system ?  sensory…

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

Q: Strychnine blocks receptor sites for inhibitory neurotransmitter substances in the CNS. Explain how…

A: Tetanus can be described as an infection that affects the nervous system and causes painful muscle…

Q: In the knee jerk, contraction of quadriceps is accompanied by relaxation of the opposing flexor…

A: A reflex action is an automatic and almost instantaneous reaction in response to a trigger. When an…

Q: What is a subluxation and what is somatic dysfunction? What role do the mechanoreceptors and…

A: A subluxation refers to a partial or incomplete dislocation of a joint usually in the context of…

Q: Billy has strained a muscle during a recent badmitton match. Describe a treatment plan to help him…

A: Muscle strain is the stretching or tearing of a tissue or muscle that connects the muscle to bone…

Q: The muscle marked by the black arrow 1. is identified as the dartos muscle 2.  is identified as…

A: The given image is that of a urinary bladder. We have to choose the correct statements regarding…

Q: Explain how it makes sense physiologically that the last fibers to be recruited to contract are the…

A: Fatigue is a term used to describe an overall feeling of tiredness or lack of energy. It isn’t the…

Q: Which of the conditions would result in the greatest action potential frequency in afferent neurons…

A: An action potential in neurons happens when a neuron transmits information through the axon to other…

Q: Increased γ-motor neuron discharge stimulates muscle spindles, because :-a- it produces stretch of…

A: A gamma motor neuron (γ motor neuron) is a type of lower motor neuron, which takes part in the…

Q: Draw a muscle spindle within a muscle, labeling the spindle, intrafusal and extra-futsal muscle…

A: Muscle is a specialized tissue of mesodermal origin. About 40-50% of the bodyweight of a human adult…

Q: Predict the consequence if presynaptic action potentials in an axonrelease insufficient…

A: Acetylcholine is an organic chemical that functions in the brain and body of many types of animals…

Q: Describe the importance of Ca++ and the difference between the sodium channels in the specialized…

A: Introduction: The brief sequence of events in the membrane potential following excitation is…

Q: Discharge from muscle spindles could be increased by all the following, except :-a- increased…

A: Muscle tissue is soft tissues that provide ability to contract. Cardiac muscle, skeletal muscle, and…

Q: 41- Gamma motor neurons: a- Causes contraction of the equatorial region of an intrafusal fiber b-…

A: The mechanism of gamma motor neurons helps in regulating muscle length and tone.

Q: The conduction velocities for the Achille's tendon reflex and the Patellar tendon reflex should be…

A: Reflex arc is the process of reflex formation. It consists of a parallel (or sensory) sensor, one or…

Q: Which of the following is correct about muscle spindles?

A: Sensory receptors are specialised cells or multicellular structures that sense changes in both the…

Q: Describe in details the biochemical and mechanochemical series of events that enables motor neurons…

A: Muscle contraction means activation of tension-generating sites within our muscle cells and the…

Q: How would the muscle behave with continued high frequency stimulation? Will you observe any…

A: The use of electric impulses to elicit muscle contraction is known as electrical muscle stimulation…

Q: xplain the role of stretch receptors

A: Our muscles is composed of many long fibres. In striated muscle, many nerves and bloods vessels are…

Q: Acetylcholine-gated cation channels at the neu-romuscular junction open in response to…

A: The term "neurotransmitter" refers to a chemical messenger that binds to receptors on the…

Q: Which statement is false? O The muscle spindle forms a monosynaptic connection with the alpha motor…

A: A muscle spindle consists of various different  muscle fibers (intrafusal fibers) that are…

Q: What does rhe binding of ACh to nicotinic receptors of skeletal muscle cells directly cause?…

A: Muscle contraction is the activation of tension-generating sites within muscle fibers. In…

Q: How is the prolonged refractory period generated incardiac muscle? What is the advantage of a…

A: The absolute refractory period is a kind of duration of time that occurs after the starting of the…

Q: differentiate the dihydropyridine receptor from ryanodine receptor.

A: Di-hydropyridine receptor-

Q: 38- Which of the following is not a characteristic of the muscle spindles: a- Encapsulated…

A: Muscle spindles: it is belongs to proprioceptors.

Q: Why is an interneuron needed to provide reciprocal inhibition of the flexor muscle when an extensor…

A: Stretch reflex is a monosynaptic reflex with two neurons and one synapse.

Q: You cut the axon of a single motor neuron innervating the biceps muscle. Which of the following is…

A: Motor neurons, often referred to as efferent neurons are the type of neurons responsible for…

Q: What would happen without input from gamma motor neurons? A) Information about velocity would…

A: Intrafusal fibers are specialized muscle fibers. They are found in the muscle spindles. Muscle…

Q: sarcolemma Ex 201 ion channel Nas myosin cross bridge Nat acetylcholine axon axon sarcolemma ion…

A: Ans. The neuromuscular junction (NMJ), a synaptic connection, is created when the terminal ends of a…

Q: Which type of proprioreceptor is sensitive to changes in both muscle length and the speed of muscle…

A: Introduction  Isometric: A muscular contraction in which the muscle length remains constant.…

Q: Acetylcholine molecules are actively transported from the axon to their receptors on the muscle…

A: The neuromuscular junctions are also referred to as motor end-plates. These are defined as the…

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: 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: 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…