When ACh binds to nicotinic receptors, it
A. sometimes excites and sometimes inhibits the target cell depending on the extracellular fluid surrounding the cell.
B. always produces an excitatory response.
C. always produces an inhibitory response.
D. sometimes excites and sometimes inhibits the target cell depending on the subtype of receptor.
Answer: B
You might also like to view...
The immune system functions entirely independently of the body's two major control systems: the nervous and endocrine systems
Indicate whether the statement is true or false
Ovaries produce which 2 hormones:
a. estrogen and testosterone b. estrogen and progesterone c. epinephrine and progesterone d. testosterone and norepinephrine
Which of the following organelles produces secretory vesicles?
A)rough endoplasmic reticulum B)Golgi apparatus C)centrosome D)ribosome E)mitochondrion
The adult human trachea is about ________ in diameter and contains ________ tracheal cartilages
A) 1.0 cm; 15-20 B) 1.0 cm; 10-15 C) 2.5 cm; 15-20 D) 2.5 cm; 40-50 E) None of the answers is correct.