Select the True regarding neurotransmitter mechanism: It acts peripherally at neuromuscular junction (NMJ) to increase skeletal muscle contraction as follow O Nicotinic receptor antagonist O Nicotinic receptor agonist O M2 receptor antagonist O GABA A receptors agonists

Q: Which of the following summarizes the role of acetylcholinesterase in muscle contraction? O opens…

A: Acetylcholinesterase (AChE) is an enzyme that breaks down the neurotransmitter acetylcholine in the…

Q: Phosphocreatine use is highest in type I muscle fibers. True False  damage to the vagus nerve will…

A: Phosphocreatine is also known as creatine phosphate, a molecule that serves as a rapidly mobilizing…

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: 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: 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: Discuss the similarities and differences by which Ca2+ activity is involved in initiating muscle…

A: "Muscles" perform various functions as movement, which is the fundamental purpose of muscles is to…

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: Is acetylcholine responsible for both voluntary and involuntary movement? I thought it was just…

A: The organic molecule acetylcholine serves as a neurotransmitter in our body and brain.

Q: The neuotransmitter acetylcholine is released from presynaptic neurons in response to a nerve…

A: The neuromuscular junction plays a vital role in the transmission of signals from nerve cells to…

Q: What is the relative activity of the two structures shown below on the opioid receptor? HO HO. O A…

A: Opioids are group of morphine- like chemicals medically used as anesthesia and as pain relief. The…

Q: When the neurotransmitter acetylcholine (ACh) binds the acetylcholine receptor (a GPCR) on muscle…

A: Neurotransmitters can cause a variety of responses on different tissues or organs. The receptors…

Q: Several snake venoms contain toxins which blocks acetylcholine receptors at the neuromuscular…

A: The neuromuscular system includes all the muscles in the body and the nerves that are required to…

Q: Acetylcholine is necessary for the depolarization of skeletal muscle cells. Which of the following…

A: * Acetylcholine is an chemical that functions in brain and body as  neurotransmitter.  *It is an…

Q: In the parasympathetic nervous system, what neurotransmitter is released on the target organ? What…

A: Nervous system coordinates and controls the activities of the animals. Together, with the endocrine…

Q: The motor end plate is extensively folded to allow for a greater number of what structures? Terminal…

A: Motor end plate -the flattened end of a motor neuron that transmits neural impulses to a muscle.…

Q: Events Leading to the Release of a Neurotransmitter 1. Action potential passes along an axon and…

A: The nervous system consists of nerve fibers that innervate all parts of the body. The impulses are…

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: Select ALL statements that are TRUE regarding a drug that would inactivate the enzyme…

A: A drug that inactivates the enzyme called acetylcholinesterase is known as Acetylcholinesterase…

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: The neurotransmitter receptors. binds

A: These are neural chemical messengers that transmits signals between two neurons.

Q: 33. Acetylcholine (Ach) is the neurotransmitter at the neuro-muscular junction. The motor neuron…

A: Motor neurons unharness neurotransmitter (ACh), a small molecule neurochemical, that diffuses across…

Q: (muscle type) NN (Neural type). O False True

A: * Nicotinic acetylcholine receptors also known as nAChRs which are the receptor polypeptides that…

Q: Order the following events of excitation and excitationcontraction coupling. Put 1 by the first…

A: A motor neuron is responsible for the transmission of a stimulus to the muscle tissues. A motor unit…

Q: Muscarine is a metabotropic acetylcholine receptor agonist. If these receptors open Na+ channels…

A: Introduction :- Acetylcholine receptors are ion channels with extracellular, intramembranous, and…

Q: Use choices from the following word bank to fill in the blanks 13 - 22: Calcium ions Myosin Action…

A: A muscle is a smooth tissue in animals. On the basis of structure, contractile properties, and…

Q: The motor end plate is extensively folded to allow for a greater number of what structures? Terminal…

A: The neuromuscular junction is also called as the myoneural junction, is a site where the chemical…

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: 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: Which of the following statements are true with regards to the differences between a neuromuscular…

A: The following statements are true with regards to the differences between a neuromuscular junction…

Q: If acetylcholinesterase fails to function properly at the neuromuscular junction, which of the…

A: The neurons are specialised cells of the human nervous system. The neurons of the nervous system…

Q: Which of the following would cause muscle paralysis? An antibody that blocks nicotinic…

A: Paralysis represents a neurological condition during which any part of the nervous system, including…

Q: Why does muscle CAP Amp for both the normal Ringer's solution and Ringer's solution with Neostigmine…

A: Introduction :- A stimulus is any physical or chemical signal that elicits a response from an…

Q: The greater the influx of calcium into the presynaptic axon terminal, the greater the O magnitude of…

A: An action potential in the presynaptic cell produces an influx of Ca2+which promotes the exocytosis…

Q: Which of the following statements regarding the motor end plate in the somatic motor division of the…

A: The preganglionic nerve fibres synapse with the post synaptic membrane of the muscle sarcomere at…

Q: Nicotinic acetylcholine receptors allow both sodium and potassium to flow across the cell membrane…

A: Ach receptors stand for the acetylcholine receptors. These receptors functions in a similar manner…

Q: Using pyramidal motor tract as a template, describe the voluntary control of skeletal muscles being…

A: Pyramidal tracts consist of the corticospinal tract and corticobulbar tract.  The tracts are…

Q: a newly-developed drug is found to bind to acetylcholine receptors but does not activate them, the…

A: Introduction: Some drugs are designed to produce an opposing reaction when bound with the receptor…

Q: Which of the following neuronal changes is associated with short term synaptic strength? a. Changes…

A: Short-term plasticity (STP) also known as dynamical synapses in which synaptic capability changes…

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

A: Acetylcholine receptors (also known as cholinergic receptors) are found in clusters on muscle cell…

Q: How would antibodies against nicotinic acetylcholine receptors (nAChRs) affect the influx of sodium…

A: Nicotinic acetylcholine receptors (nAChRs) are receptors that bind to the ligand acetylcholine,…

Q: Match the description with the thing that binds to a receptor Drag and drop options on the…

A: Ligand-Receptor interactions play a major role in cellular communication and signal transduction.…

Q: Which ligand-gated channel directly allows for the passage of both sodium and potassium across the…

A: Ion channels are the membrane proteins that allows the passage or movements of ions across the cell…

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: Neuromuscular Junction: -Activation of nicotinic ACh receptors in the motor end plate results in…

A: The junction between a motor neuron and a muscle fiber by which the nerve can communicate with…