Neurons that have dendritic spines are typically:
A) excitatory.
B) inhibitory.
C) modulatory.
D) excitatory, inhibitory, and modulatory.

Question

Quizplus · Accepted Answer

Dendritic spines are small protrusions on the dendrites of neurons that receive and process incoming signals from other neurons. These spines are most commonly found on excitatory neurons, which release neurotransmitters that activate postsynaptic neurons and promote the firing of action potentials. Inhibitory neurons, on the other hand, release neurotransmitters that prevent or inhibit the firing of action potentials. Modulatory neurons release neurotransmitters that affect the activity of other neurons, but they do not directly promote or inhibit action potential firing. Therefore, option A is the best choice because dendritic spines are most commonly found on excitatory neurons.

Neurons That Have Dendritic Spines Are Typically