Figure 8.1 -What Is Occurring in Step 2 of Figure 8.1, and 8.1

question 125

Multiple Choice

Figure 8.1
-What is occurring in Step 2 of Figure 8.1, and how is that process originated?

• A)fast receptor opens an ion channel that is part of the receptor : reuptake
• B)slow receptor can open or close an ion channel by G protein coupling between receptor and ion channel : neurotransmitter release
• C)receptor that can stimulate a cellular response by gating its ion channel : stimulating a G protein to gate an ion channel
• D)influx of calcium : depolarization causes voltage- gated calcium channels to open
• E)remove neurotransmitter from the synaptic cleft : reuptake

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Definitions:

Spinal Nerve

A mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body.

Ventral Root

The part of a spinal nerve that carries motor output from the spinal cord to the body's muscles and glands.

Efferent Fibers

Nerve fibers that carry impulses away from the central nervous system to effectors such as muscles or glands, facilitating response and action.

Root Ganglion

A cluster of nerve cell bodies found in the dorsal root of a spinal nerve.