Question

Which of the following is true about structures of axons and muscle cells in order for the nerve impulses to stimulate muscle contractions
A.
Axons and muscles cells must both have structures that make and secrete the same small molecules.
B.
Axons and muscles cells must both have receptors that recognize the same small molecules.
C.
Axons must have structures that make and secrete the molecules, and muscles cells must have receptors that recongnize these molecules.
D.
Muscles cells must have structures that make and secrete molecules and axons must have receptors that recognize these molecules.

Answer 1

Axons must have structures that make and secrete the molecules, and muscles cells must have receptors that recongnize these molecules is true about structures of axons and muscle cells in order for the nerve impulses to stimulate muscle contractions

Explanation:

The axon manages to wait for the identical broadness for most of its length and doesn't have spines. The axon emerges from the cell body at a specific region called the axon hillock. Several axons are comprised of a unique insulating material called myelin, which improves them dispatch the nerve impulse immediately. When an activity potential travels down an axon and arrives at the axon terminal, it triggers the release of neurotransmitter from the presynaptic cell. Neurotransmitter molecules cross the synapse and bind to membrane receptors on the postsynaptic cell, conveying an excitatory or inhibitory signal.