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The axon terminals of a nerve cell and the sarcolemma of a skeletal muscle cell join at the?
The axon terminals of a nerve cell and the sarcolemma of a skeletal muscle cell join at the neuromuscular junction. This is where the nerve impulse triggers the release of neurotransmitters, such as acetylcholine, which initiate muscle contraction by binding to receptors on the sarcolemma.
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.
When you want to move your arm your brain sends a message where does the message go?
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineEach nerve impulse begins in the dendrites of a neuron's. the impulse move rapidly toward the neuron's cell body and then down the axon until it reaches the axon tip.a nerve impulse travels along the neuron in the form of electrical and chemical signals.Acetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction.
Why are mitochondria needed at axon terminals?
mitochondria are particularly numerous on the branched ends of the axon where they are involved in the formation of transmitter substances. (Williams,G (2003) Advanced biology for you, cheltenham, nelson thornes, page 327)
Where are neurotransmitters released?
Neurotransmitters are released from the axon terminal of a neuron into the synaptic cleft, which is the small gap between the axon terminal and the dendrite of a neighboring neuron. neurotransmitters then bind to receptors on the receiving neuron, transmitting the signal.
What is nother name for an impulse transmitter?
axon
What is a critical event that occurs at the neuromuscular junction?
Acetylcholine is released by axon terminals of the motor neuron.
Skeletal muscle fiber contraction begins when?
Acetylcholine is released into the neuromuscular junction by the axon terminal
What structures meet at neuromuscular junction?
An axon and the sarcolemma.
Impulse generator and transmitter?
axon terminal
What acts as an impulse generator and transmitter?
axon
What part of nerve cell is adjacent to neuromuscular junction?
The axon terminal of a nerve cell is adjacent to the neuromuscular junction. The axon terminal releases neurotransmitters that transmit signals across the synapse to the muscle fiber. This signal triggers muscle contraction.
The junction between a motor neurons axon and the muscle cell membrane is called a neuromuscular junction or a?
The junction between a motor neruon's axon and the muscle cell membrane is called a neuromuscular junction or a myoneuraljunction?
What describes a critical event that occurs at the neuromuscular junction?
A critical event that occurs at the neuromuscular junction is the release of acetylcholine from the motor neuron's axon terminal. This neurotransmitter binds to receptors on the muscle membrane, leading to depolarization of the muscle cell and generation of an action potential, initiating muscle contraction. Dysfunctions at the neuromuscular junction can lead to diseases like myasthenia gravis.
The actual gap between an axon ending and the muscle cell is called what?
Neuromuscular junction.
Which part of the nerve cell ivides into synaptic end-bulbs at neuromuscular junction?
The axon.
What does the neuromuscular junction consist of?
the axon terminal coming into close proximity to a muscle fiber
