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In the context of the relationship between a neuron and a muscle, "contiguous" refers to the direct physical and functional connection that allows for communication between the two. Specifically, this connection occurs at the neuromuscular junction, where the axon terminal of a motor neuron is in close proximity to the muscle fiber, enabling the transmission of signals. This close relationship is essential for muscle contraction, as the neuron sends neurotransmitters that trigger the muscle to respond. Thus, contiguous highlights the importance of this direct link in facilitating movement.
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What is a motor neuron attached to?
A Motor neuron is a neuron that carries impulses from the spinal cord to muscle cells.A Motor neuron is a neuron that carries impulses from the spinal cord to muscle cells.
Which of these junctions represents the connection between the tip of a neuron and a skeletal muscle cell from which Acetylcholine diffuses?
Neuromuscular
Why is that electrical impulses cannot pass from neuron to muscle cell?
The synapse, or connection, between a neuron and striated muscle is typically a chemical one called the neuromuscular junction. The pre-synaptic terminus coming from the neuron releases acetylcholine (ACh) which triggers an opening of the ionic channels on the muscle side. The depolarization triggers calcium entry into the cytosol of the muscle and contraction.
Which of these cells are likely to have multiple nuclei skeletal muscle cardiac muscle smooth muscle or neuron?
skeletal smooth muscle neuron
Skeletal muscle fiber is controlled by a motor neuron at a single?
Each muscle cell is only innervated by a single motor neuron, but each motor neuron innervates any number of muscle cells. When an action potential travels down the axon of an alpha motor neuron, it will depolarize several muscle cells at the same time, a phenomenon known as summation.
Is neuron a muscle?
No.
What type of neuron connects to a muscle?
A motor or efferent neuron.
How do mature human neuron (nerve) cells interact with muscle cells in the body?
Mature human neuron cells communicate with muscle cells through a connection called a synapse. Neurons release chemical signals called neurotransmitters, which stimulate muscle cells to contract or relax, allowing for movement and coordination in the body.
What is the difference between a motor unit and a motor neuron in the context of muscle movement?
A motor unit consists of a motor neuron and the muscle fibers it controls. The motor neuron sends signals to the muscle fibers to contract, while the motor unit refers to the combination of the neuron and the muscle fibers it innervates.
What position on the muscle cell where the nerve fibers connect?
The point where a nerve fiber connects to a muscle cell is known as the neuromuscular junction. This connection allows the nerve signal, or action potential, to be transmitted from the nerve to the muscle cell, triggering muscle contraction.
What is the pathway of an impulse in a reflex arc?
Sensory receptor, sensory neuron, interneuron, motor neuron, and muscle.
Which type of muscle requires a motor neuron?
Skeletal muscle.
