From the following choices, choose the THREE, that would result in prevention of muscle contraction (in other words, which three descriptive changes below would result in flaccid paralysis of a muscle).   exocytosis of acetylcholine is constant, even without action potential   injection of botulinum toxin   calcium cannot be pumped back into the terminal cisternae   acetylcholine receptor remains open to sodium   active sites on actin a permanently exposed   dramatically increase the activity of acetylcholinesterase

Q: which decreases cytoplasmic calcium ion concentration The relaxation of skeletal muscle relies on…

A:

Q: In the sliding filament model of muscle contraction, I bands contain     sacrcomeres.     thin…

A: The cytoskeletal proteins including actin filament or microfilament, microtubules and intermediate…

Q: Given these events:(1) Acetylcholine is broken down into acetic acid and choline.(2) Acetylcholine…

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

Q: Which of the following does NOT contribute to the built in "safety factor" at the neuromuscular…

A: The neuromuscular junction is defined as the chemical synapse, which is present in between the motor…

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: Which of the following choices best summarizes excitation-contraction coupling? A series of events…

A: Excitation contraction coupling is the process by which an electrical stimulus triggers the release…

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: 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: Know the Sliding Filament Theory & neurological events leading up to contraction. (i.e. from the…

A: The level of calcium ions in the cytoplasm is controlled by muscle contraction. Calcium ions work at…

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

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

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: Recently, it has been observed that several muscle diseases and disorders are linked to problems…

A: Some individuals with inherited genetic mutations are susceptible to malignant hyperthermia. Certain…

Q: Curare is a dangerous poison extract from plants that can block the binding site of Acetylcholine…

A: The conditions which likely to diminish or completely prevent tension production are 1. Reduced…

Q: Which of the following statements regarding summation in skeletal muscle fibers is true?…

A: The correct options are 2 and 4.In skeletal muscles, the muscle fibers are innervated by motor…

Q: If a single twitch of a skeletal muscle fiber lasts 40 msec, what action potential stimulation…

A: In human physiology, skeletal muscle is defined as the vital organ of muscular system which is also…

Q: Describe the process of skeletal muscle contraction, beginning with an action potential in a motor…

A: Skeletal muscles are voluntarily controlled.

Q: The motor end plate is _ a folded area of muscle cell membrane a specialized protein on the…

A: Motor end plate  It a special type of synapse where motor axon touches to a targeted muscle cell.

Q: Muscle Contraction In an experiment, the strength of a neural stimulus and the resulting muscle…

A: In the physiology of the nervous system, neurons need to be stimulated in order to conduct impulses…

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: 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: 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: A motor unit associated with the stimulation of skeletal muscle is designated as a 1:8 motor unit.…

A: A motor unit is made up of a motor neuron and the skeletal muscle fibres innervated by that motor…

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: Give an account of the excitation-contraction coupling (Figure 3) in skeletal Highlight the role of…

A: Each skeletal muscle fiber is a single cylindrical muscle cell. An individual skeletal muscle may be…

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: Which of the following pairs of terms is correctly matched?   Voltage-gated calcium channels :…

A: Correctly matchedTransmission of chemical synapses occurs when a nerve impulse reaches the…

Q: The concentration of Ca++ in the cytoplasm of the muscle fiber is [ Select ] than that of the…

A: Answer : the concentration of Ca++ in the cytoplasm of the muscle fibre Is lower than that of the…

Q: ___________ crosses the synapse between a motor neuron and a muscle fiber and is responsibile for…

A: Muscle Contraction It stimulates when an action potential moves along the nerves to the muscles. It…

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: Which of the following does not occur during the excitation contraction coupling of skeletal muscle?…

A: Excitation contraction coupling of skeletal muscle is the connection between electrical action…

Q: When motor units are recruited to participate in tension development in a muscle, the order of…

A: Introduction  A motor unit consists of a motor neuron as well as all of the skeletal muscle fibres…

Q: Acetylcholinesterase is the enzyme that breaks down and inactivates acetylcholine. Some nerve gases…

A: Nerve gas binds to acetylcholinesterase enzyme but only at 1 site. Nerve gas has a phosphorus group…

Q: Arrange the following in statements in the order that they occur during muscle contraction: 1-10…

A: Muscle contraction is the activation of tension-generating sites within muscle fibers. It does not…

Q: Determine whether the following description is common to skeletal muscle, cardiac muscle or both…

A: increase in tension during contraction of the muscle organ involves recruitment of other cells 1.…

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

A: Answer : Motor  neuron , Sodium Ion

Q: The depletion of ATP in muscle cells causes ____. myosin heads to remain bound to actin…

A: answer:1 The depletion of ATP in muscle cells causes calcium ions to be released from the…

Q: In which type(s) of muscle cells does each cell have its own neuromuscular junction?…

A: As per the guidelines, first is answered. Cells called muscle fibres are composed of skeletal muscle…

Q: An ion that is essential for muscle contraction is Ca2+.  Which of the following statements about…

A: Introduction  Neurotransmitters released by the motor neuron that innervates a muscle cell cause it…

Q: An ion that is essential for muscle contraction is Ca2+.  Which of the following statements about…

A: calcium ions play a very important role in muscle contraction. Actin and myosin work together during…

Q: When an action potential arrives at the neuromuscular junction, acetylcholine is released into the…

A: Muscle is the tissue present in the body that helps for movement and change shape. There are mainly…

Q: The axon of neurons contains microtubules with the minus end situated toward the cell body and the…

A: We have different cytoskeletal fragments which helps in movement of substance inside the cells .

Q: Axon of neuron Complete the following paragraph, using the diagram above, to identify the structures…

A: In vertebrates,three types of muscles are found namely: 1) Skeletal muscles 2) smooth muscles 3)…

Q: Of the below, could you please assist with what applies to Muscle tone?     is a condition in…

A: Muscle tone - Muscle tone is a kind of continuous or partial contraction of muscles. Muscle tone…

Q: Elevated levels of Pi in the sarcoplasm of skeletal muscle fibers would decrease the release of Pi…

A: Cross-bridge cycle is referred to as the phenomenon which involves the actin and the myosin…

Q: Muscle twitching can be explained by the_________ action of synapse. A. Cell signalling B.…

A: The contraction of muscles can be referred to as twitch, tetanus, or summation. A twitch contraction…

Q: Which of the following describes the effect of the venom on the prey of the cobra?

A: Introduction Muscle contraction is a result of action potential generated by depolarization,…

Q: Which of the following does NOT describe treppe? It is also referred to as the "staircase" effect.…

A: The muscular system is the set of muscles that are present in the body adhered to the skeletal…

Q: Muscle cells are stimulated by neurotransmitters released from the synaptic terminals of what…

A: ACTION POTENTIAL An action potential occurs when the membrane potential of a specific cell  rapidly…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.