If an individual was lacking a key amino acid and so couldn't make and release substance P, what would happen?
A. There would be a surge in activity in neurons that synthesize opiate neurotransmitters.
B. There would be increasing sensation of pain generated by the brain, with or without any damage to structures in the periphery.
C. They would experience a lack of sensation in some pain pathways.
D. There would be an increase in activity in neurons that detect painful stimuli in internal organs.
E. Synaptic activity in afferent neurons associated with pain receptors can be inhibited by axon-axon synapses with neurons from descending pathways.
Answer: C
You might also like to view...
A lab technician finished the test. "The CBC results are in the computer," she told her supervisor. What body fluid did she examine?
A) Urine B) Blood C) Cerebrospinal fluid D) Saliva
Which of the following choices places the components of a homeostatic control system in proper order?
?A. Effector, control center, stimulus, receptor ?B. Stimulus, receptor, control center, effector ?C. Receptor, effector, control center, stimulus ?D. Stimulus, control center, effector, receptor ?E. Receptor, control center, stimulus, effector
Which blood vessel supplies structures derived from the embryonic foregut?
A. The hepatic portal vein B. The thoracic arteries C. The superior mesenteric artery D. The inferior mesenteric artery E. The celiac trunk
Which of the following does not contain ciliated cells?
A. Primary bronchus B. Terminal bronchiole C. Trachea D. Nasal cavity E. Larygopharynx