Q. 17
Question
Where are parasympathetic preganglionic cell bodies located?
a. cerebellum
b. brainstem
c. dorsal root ganglia
d. skin
Step-by-Step Solution
Verified Answer
Option b is the correct answer.
1Step 1: Introduction
The parasympathetic nerve system enables "rest and digestion" in the body. Acetylcholine is released by parasympathetic neurons. The brainstem and sacral spinal cord are home to the cell bodies of parasympathetic neurons. The parasympathetic nervous system is activated to enhance digestion and blood flow to the skin while lowering heart rate and blood pressure.
2Step 2: The explanation for the correct answer
Cell bodies for parasympathetic preganglionic neurons are found in the brainstem and sacral (downward facing) spinal cord.
3Step 3: The explanation for incorrect options
The rest of the options are irrelevant to the question.
Other exercises in this chapter
Q.17
Breastfed infants typically are resistant to disease because of ________.a. active immunityb. passive immunityc. immune toleranced. immune memory
View solution Q. 17
Which hormone elicits the “fight or flight” response?a. epinephrineb. mineralocorticoidsc. anti-diuretic hormoned. thyroxine
View solution Q. 17
Which of the following is not a true statement comparing prokaryotic and eukaryotic DNA replication? a. Both eukaryotic and prokaryotic DNA polymerases bui
View solution Q18
The movement of mineral nutrients through organisms and their environment is called a ________ cycle. a. biological b. bioaccumulation c. biogeochemical d. bioc
View solution