Question 1

Categorize each example as involving a ligand-gated ion channel or a voltage-gated ion channel.

Accepted Answer

The answer of Categorize each example as involving a ligand-gated...

Question 2

A researcher isolated a neuronal axon from the brain of a new species of squirrel and noticed that it was covered in a myelin sheath.What are the likely origins of this axon? (Check all that apply)
A) Central nervous system (CNS)
B) Peripheral nervous system (PNS)
C) Areas composed of white matter
D) Areas composed of gray matter

Accepted Answer

The myelin sheath can be found in both the CNS and PNS, but axons in the CNS are typically associated with white matter, which is composed of myelinated axons.

Question 3

(Check all that apply)Depression is usually
A) counteracted with selective serotonin reuptake inhibitors.
B) the result of a neurotransmission disorder
C) counteracted with neurotransmitters that inhibit the secretion of serotonin.
D) found more often in men than in women.

Accepted Answer

A) Selective serotonin reuptake inhibitors (SSRIs) are commonly prescribed medications for depression, as they help increase the level of serotonin in the brain, which can improve mood and emotional state. B) Depression is often linked to imbalances in neurotransmitters, including serotonin, norepinephrine, and dopamine, indicating a neurotransmission disorder.

Quiz 32: Neuroscience I: Structure, Function, and Evolution of Nervous Systems

Categorize each example as involving a ligand-gated ion channel or a voltage-gated ion channel.

A researcher isolated a neuronal axon from the brain of a new species of squirrel and noticed that it was covered in a myelin sheath.What are the likely origins of this axon? (Check all that apply)

(Check all that apply) Depression is usually