Question

question 4
if the center of a reflex arc is the brain, the response it mediates is called a
cranial reflex.
spinal reflex.
cranial reaction.
spinal reaction.

question 5
tongue movement is controlled by which cranial nerve?
oculomotor
olfactory
vagus
hypoglossal

question 6
acetylcholine binds to _____ receptors.
adrenergic
beta
alpha
cholinergic

Explanation:

• Question 4: Reflex arcs with the brain as the center are cranial reflexes. Spinal reflexes have the spinal cord as the center. "Reaction" is not the correct term for these neural responses.
• Question 5: The hypoglossal nerve controls tongue movement. The oculomotor nerve controls eye - related movements, the olfactory nerve is for smell, and the vagus nerve has multiple functions including in the digestive and cardiovascular systems.
• Question 6: Acetylcholine binds to cholinergic receptors. Adrenergic receptors bind norepinephrine and epinephrine. Alpha and beta are subtypes of adrenergic receptors.

Answer:

Question 4: cranial reflex.
Question 5: hypoglossal.
Question 6: cholinergic.