Question

question 46 (3 points)
match the following terms to the correct description.
transmits impulse from
soma to synaptic terminal
it produces the
neurotransmitter

1. neurotransmitter

the point between the
neuron and the muscle

1. presynaptic membrane

it carries receptors on its
surface

1. postsynaptic membrane
2. na+-k+ pump

it restores the membrane
potential

1. neuromuscular junction

the chemical that talks
between one neuron and
the other neuron

1. axon

Explanation:

• Axon: A long, slender projection of a neuron that transmits electrical impulses (action potentials) away from the cell body (soma) to the synaptic terminal.
• Presynaptic membrane: Part of the neuron that releases neurotransmitters. The cell body (soma) has organelles like ribosomes that synthesize neurotransmitter - related proteins, and the presynaptic membrane is the site of neurotransmitter release.
• Neuromuscular Junction: The synapse (junction) between a motor neuron and a muscle fiber.
• Postsynaptic membrane: The membrane of the target cell (could be a neuron or a muscle cell) that has receptors for neurotransmitters. When neurotransmitters bind to these receptors, it can initiate a response in the postsynaptic cell.
• \(Na^{+}-K^{+}\) pump: An active - transport protein that uses ATP to move \(Na^{+}\) out of the cell and \(K^{+}\) into the cell. This helps in restoring the resting membrane potential after an action potential.
• Neurotransmitter: A chemical messenger that is released from the presynaptic neuron, diffuses across the synaptic cleft, and binds to receptors on the postsynaptic neuron (or other target cell) to transmit a signal.

Answer:

1. Neurotransmitter - the chemical that talks between one neuron and the other neuron.
2. Presynaptic membrane - it produces the neurotransmitter.
3. Postsynaptic membrane - it carries receptors on its surface.
4. \(Na^{+}-K^{+}\) pump - it restores the membrane potential.
5. Neuromuscular Junction - the point between the neuron and the muscle.
6. Axon - transmits impulse from soma to synaptic terminal.