Which of the following organs has dual ANS innervation?
A. Arrector pili muscles
B. Iris
C. Most blood vessels
D. Adrenal medulla
Answer: B
You might also like to view...
If a vaccine is given to most people in a population, it can halt an infection because of
A. herd immunity. B. people keeping away from each other. C. bovine immunity. D. an epidemic of autoimmunity.
Preganglionic fibers leave the CNS and then synapse on
A) postganglionic fibers. B) visceral reflex responses. C) motor neurons. D) ganglionic neurons. E) afferent neurons.
____________________ forces require the cell to expend energy in transporting a substance across the membrane
Fill in the blank(s) with correct word
The hormone calcitonin
A) stimulates osteoclast activity. B) decreases the rate of calcium excretion. C) decreases the rate of calcium absorption. D) decreases the level of calcium ion in the blood. E) stimulates osteoblasts and inhibits osteoclasts.