Muscle twitching can be explained by the_________ action of synapse. A. Cell signalling B. Temporal Summation C. Spatial Summation D. All for nothing response

Q: When arm muscles hurt after heavy exercise, the pain is detected bya. neurotransmitters.b.…

A: A nerve cell or neuron is the basic building block of the nervous system. This is known as the…

Q: In your own words, describe the main events occurring between the arrivalof an action potential at a…

A: The chemical synapse that favors the transmission of the signal from the motor neurons to the muscle…

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: 3. Activation of Golgi tendon organ of a given muscle: a- Activates motor neurons that return to the…

A: *The Golgi tendon organ also called as  neurotendinous spindle which is a proprioceptor that was a a…

Q: A student athelete measured his running performance on a treadmill and found the following data: 15…

A: There are two main types of skeletal muscle fibers. They are type I (slow-twitch muscle fibers) and…

Q: h) Depolarization of the T tubule membrane activates the sarcoplasmic reticulum via a) muscarinic…

A: INTRODUCTION          In the membrane structure T - tubule membrane is mainly associated with a…

Q: A. Mechanical stimulation (pinching free end of nerves between two glass rods) B. Threshold stimulus…

A: In frog, the sciatic nerve is a collection of nerve fibers present in a single bundle. These fibers…

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: ach

A: B. ACH or Acetylcholine is the only neurotransmitter that is present in the somatic muscular…

Q: Motor neurons release what type of neurotransmitter onto the motor end plate of skeletal muscles?…

A: Motor neurons of the spinal rope are essential for the central nervous system (CNS) and interface…

Q: a. Describe the relationship between stimulus voltage and the force of contraction b. What was the…

A: The threshold stimulus voltage is found by varying the stimulus voltage slightly to discover the…

Q: Caffeine prolongs the life span of acetylcholine molecules in the motor junctions. Explain how this…

A: Caffeine is naturally present in tea, coffee and it stimulates the the brain and central nervous…

Q: Describe the functions of gamma motor neurons and explain why they are stimulated at the same time…

A: The gamma motor neurons innervate the muscle spindle at every finish. they permit contraction of the…

Q: While initial control of skeletal muscles occurs with the motor cortex, a successful movement also…

A: The motor movements required coordination of central nervous system that controls the muscle…

Q: Match the component of the neuromuscular junction with the correct terminology. v somatic motor…

A: Neurons are the nerve cells in the human nervous system. The neurons can transmit nerve signals from…

Q: Selective destruction of a motoneurons in the spinal cord will have which of the following effects…

A: Introduction Muscles are soft tissues found in both animals and humans, it is the fibrous tissue in…

Q: Which event listed above is the point at which myasthenia gravis interrupts the process? A. Nerve…

A: A neuron is the structural and functional unit of the nervous system. It helps in the transmission…

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: Describe the roles of ATP in the sliding filament mechanism of skeletal muscle contraction.    (b)…

A: Sliding past theory explains the process of various muscle proteins such as actin and myosin sliding…

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: 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: The neurotransmitter that initiates events leading to skeletal muscle contraction is A. creatine…

A: Skeletal muscle can be outlined as the muscles of the body that are voluntary in action. They are…

Q: Number 5 in Graph B represents iand is the result of i The statement above is best completed by the…

A: Need to find what the label 5 represents in the graph given.

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: The drug Botox prevents wrinkles by preventing muscles from contracting. Specifically, it prevents…

A: Botulinum toxin is a neurotoxic protein produced by the bacterium Clostridium botulinum.

Q: Explain why the ratio of motor neurons to muscle fibers isgreater in muscles that control eye…

A: The muscle system is responsible for several functions such as maintaining body posture, locomotion,…

Q: a. At what time point did would a nerve begin to fatigue? Comment on the percentage decrease in…

A: Introduction Muscle fatigue:- It is a decrease in maximal force or power production in response to…

Q: In relation to the size principle of motor unit recruitment, the mechanism of recruitment f) order…

A: The process of activating different motor units to achieve a specific level and kind of muscular…

Q: Which of these events occurs when a person steps on a tack with theright foot?a. The right foot is…

A: A direct impact or a penetrating injury, or a fall may cause acute injury or twisting, jerking, or…

Q: What determines the effect of neurotransmitter release on the post-synaptic neurons?  a. the size of…

A: Neurotransmitters are chemicals responsible for carrying a signal or an impulse via a synapse. They…

Q: Graph A in this diagram represents A) summation and tetanus of a smooth muscle fibre. C) a simple…

A: Skeletal muscles Skeletal muscles are attached to the body part which is involved in movement like…

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: Describe the effect of the botulinum toxin, which inhibits the release of acetylcholine at the…

A: Botulinum toxin is also known as the miracle poison. It is defined as a neurotoxin formed by the…

Q: A bacterial toxin is known to block the release of ACh at the motor end plate of skeletal muscle.…

A: (c) the ability to stimulate the muscle is impaired

Q: All motor neurons release acetylcholine as a neurotransmitter except a. Postganglionic sympathetic…

A: The autonomic nervous system acts mostly unconsciously and regulates bodily functions, such as…

Q: Lower motor neurons are _____________ neurons. A. multipolar B. bipolar C. unipolar D. anaxonic

A: Motor neurons  These are a part of central nervous system which connect to muscles, glands and…

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: One tretment for myasthenia gravis is a medication that blocks the activity of acetylcholinesterase.…

A: Myasthenia gravis: It is an autoimmune condition where the immune system attack between muscles and…

Q: In which of these ways does a metabotropic synapse differ from an ionotropic synapse? a. Its effects…

A: The binding of neurotransmitters activates the ionotropic and metabotropic membrane-bound receptors.…

Q: Explain how more than one smooth muscle cell can be influenced by an action potential generated in…

A: Explain how more than one smooth muscle cell can be influenced by an action potential generated in…

Q: A K FL

A: Nervous system coordinates and controls the activities of the animals such as perceptions, behaviors…

Q: Somatic motor neurons have axons the conduct signals from the CNS to _ ; and are usually under _…

A: The nervous system is a complex system of nerves and specialized cells known as neurons. The nervous…

Q: Binding of neurotransmitter to the motor end plate leads to depolarization because the…

A: Events  that occur at neuromuscular junction that results in muscle contraction are :  Action…

Q: The discharge from Golgi tendon organs initiated by excessive stretch ofa skeletal muscle produces…

A: Introduction  Golgi tendon organ are the proprioceptor (sense organ) which receives the information…

Q: When you lift a heavy box, your muscles need to generate a stronger than average contraction. What…

A: Muscle contraction is the mechanism of tightening, shortening, or lengthening of muscles that occurs…