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The narrow space between the synaptic terminal and the muscle fiber is the?

synaptic cleft, where neurotransmitters are released by the synaptic terminal and bind to receptors on the muscle fiber to trigger a muscle contraction.


Where axon terminal located in the NMJ?

The axon terminal is located at the end of a motor neuron, where it meets the muscle fiber at the neuromuscular junction (NMJ). This is where communication between the neuron and muscle fiber occurs, allowing for the transmission of signals that trigger muscle contractions.


Space between synaptic end bulbs of axon terminal and sarcolemma?

The space between the synaptic end bulbs of an axon terminal and the sarcolemma is called the synaptic cleft. It is a small gap that neurotransmitters traverse to transmit signals between neurons and muscle cells. The neurotransmitters released from the axon terminal bind to receptors on the sarcolemma, triggering muscle contraction.


The actual gap between an axon ending and the muscle cell is called what?

Neuromuscular junction.


What is axonal recruitment?

Axonal recruitment refers to the process by which motor neurons control muscle contraction by selectively activating more or fewer muscle fibers. As the strength of a muscle contraction increases, more motor units are activated and more muscle fibers are recruited, leading to a more forceful contraction. Axonal recruitment plays a crucial role in the fine control of movements and is essential for activities that require varying degrees of force, such as lifting objects of different weights or controlling the speed and force of movements during physical activities.


What is the difference between a dyad and triad in skeletal cardiac muscle?

In skeletal muscle, a triad is formed when a T-Tubule is flanked on either side by the calcium containing Terminal Cisternae of the Sarcoplasmic Reticulum, at the level of the Z-line. The intimate association of these three membranous sturctures (Terminal Cisternae---T-Tubule---Terminal Cisternae) for a Triad. This differs from a diad (or Dyad), in cardiac muscle where the T-Tubule is only intimately associated with ONE Terminal Cisternae.


What is the substance released at axon terminals?

The substance that is released at an axonal ending to propagate the nerve impulse to the next nerve or muscle is called


Gap between axon terminal and muscle cell?

The gap between the axon terminal and muscle cell is called the synaptic cleft. It is defined as the small gap, measured in nanometers, between an axon terminal and any of the cell membranes in the immediate vicinity.


What are functions of synaptic junction?

To "connect" two neurons, (or a neuron and a muscle cell), by providing a space between an axon terminal of one neuron and a dendrite of another neuron (or a muscle cell), so neurotransmitters that are released by an axon terminal can diffuse across that space to reach the dendrite (or muscle cell) and either initiate the possibility of the second neuron to fire or cause a muscle cell to contract.


What phase is between stimulus of a muscle and the shortening of the muscle?

The phase between the stimulus of a muscle and the shortening of the muscle is called the latent phase or latent period. During this phase, the muscle is receiving the signal to contract, but actual muscle shortening has not yet occurred. This period is important for the muscle fibers to prepare and generate enough force for contraction.


Into what does the neuron release its neurotransmitter at the neuromuscular junction?

The neuron releases its neurotransmitter into the synaptic cleft at the neuromuscular junction, which is the gap between the neuron terminal and the muscle cell. This neurotransmitter then binds to receptors on the muscle cell membrane, triggering muscle contraction.


Where are the cross bridges involved in muscle contraction?

in the terminal cisternae