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What is the point of contact between motor neurons and a skeletal muscle cell?
A nueromusculator junction
What neurotransmitter stimulates skeletal muscle contractions?
Acetylcholine
What is the term for termination of the nerve axon on the skeletal muscle fiber?
ganglionic synapse
What Neurotransmitter that activates skeletal muscle fibers?
Acetylcholine is the neurotransmitter that activates skeletal muscle fibers at the neuromuscular junction. It plays a crucial role in transmitting signals from motor neurons to muscles, leading to muscle contraction.
What ia neuromuscular junction?
The neuromuscular junction is the synapse or connection point between a motor neuron and a skeletal muscle fiber. It is where the motor neuron releases the neurotransmitter acetylcholine, which binds to receptors on the muscle fiber's membrane, leading to muscle contraction. This junction plays a crucial role in voluntary movement and is essential for the communication between the nervous system and muscles. Dysfunction at this site can lead to various neuromuscular disorders.
What kinds of compounds in the body transmit impulses between nerve and muscle cells?
Neurotransmitters such as acetylcholine transmit impulses between nerve and muscle cells. These chemical messengers are released at the synapse where nerve and muscle cells meet, allowing for the transmission of signals that trigger muscle contraction.
What Neurotransmitter diffuses across a synapse to a muscle cell?
It varies: In the somatic system (skeletal muscle) and parasympathetic branch of the autonomous nervous system (smooth & cardiac muscle) it is usually acetylcholine. In the sympathetic branch of the autonomous nervous system (smooth & cardiac muscle) it is usually norepinephrine (also called noradrenaline). There are exceptions, but this is the general rule.
What type of excitatory neurotransmitter is secreted by motor neurons innervating skeletal muscle?
Acetylcholine is the excitatory neurotransmitter released by neurons innervating skeletal muscles. Acetylcholine release stimulates muscle contraction by acting at the nicotinic-acetylcholine receptor on the surface of the muscle cell.
What are similarities between skeletal muscle and cardiac muscle?
cardiac is cardiac and skeletal is skeletal.
What location does a neuron transfer an impulse to another cell?
It depends on what the next structure is. If it is another neurone, then it is a synapse. If it is skeletal muscle, then the it is a neuromuscular junction. If it is any other type of muscle, then it is a myoneural junction.
What is the neurotransmitter of alpha-motor neuron?
Alpha-Motor neurons release the neurotransmitter acetylcholine at a synapse called the neuromuscular junction. When the acetylcholine binds to acetylcholine receptors on the muscle fiber, an action potential is propagated along the muscle fiber in both directions.
What is the neurotransmitter of the motor neuron?
Alpha-Motor neurons release the neurotransmitter acetylcholine at a synapse called the neuromuscular junction. When the acetylcholine binds to acetylcholine receptors on the muscle fiber, an action potential is propagated along the muscle fiber in both directions.
