Neuromuscular junction
A single motor neuron will innervate many muscle cells
The neurotransmitter acetylcholine is released from neuron axon terminals and binds to nicotinic receptors on muscle cells, triggering muscle contraction.
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.
This type of nerve is called an efferent autonomic neuron.
The neurotransmitter released at motor end plates by motor neurons is acetylcholine. It binds to receptors on the muscle cell membrane, leading to muscle contraction.
Neuromuscular junction. It is the point of contact between the motor neuron and the skeletal muscle cell, where the motor neuron releases neurotransmitters that trigger muscle contraction.
motor end plate
A motor unit consists of a motor neuron and all the muscle fibers it innervates. When the motor neuron fires, all the muscle fibers in the motor unit contract simultaneously. This coordinated activation allows for precise control of muscle force and movement.
A single motor neuron will innervate many muscle cells
The neurotransmitter acetylcholine is released from neuron axon terminals and binds to nicotinic receptors on muscle cells, triggering muscle contraction.
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.
arrector pili muscle cell
via chemicals called neurotransmitters, expressed at sites called synapses, which are tiny gaps between a neuron and another neuron or a muscle cell.
The location where a neuron transfers an impulse to another neuron or to a muscle cell is called a synapse. At the synapse, the presynaptic neuron releases neurotransmitters that bind to receptors on the postsynaptic neuron or muscle cell, facilitating the transmission of the signal. This process is crucial for communication within the nervous system and between nerves and muscles.
This type of nerve is called an efferent autonomic neuron.
Motor end plate is a specialized area on a muscle fiber that forms a neuromuscular junction with a motor neuron. It is where the nerve impulse from the motor neuron triggers the muscle fiber to contract. The motor end plate is crucial for muscle function and movement.
The neurotransmitter released at motor end plates by motor neurons is acetylcholine. It binds to receptors on the muscle cell membrane, leading to muscle contraction.