Neuron one stimulates neuron two. Neuron two stimulates an interneuron that re-stimulates neuron one and so on. What type of neuronal circuit is involved?
A) convergent pathway
B) divergent pathway
C) reverberating circuit
D) parallel after-discharge circuit
Answer: D) parallel after-discharge circuit
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The brain-testicular axis ________.
A) is the tight relationship between the cortex and the control of testicular function B) involves FSH and LH release C) involves posterior pituitary release of regulating hormones D) involves a positive feedback loop control of spermatogenesis
The clinical term for "growing old" is
A) maturation. B) aging. C) senescence. D) apoptosis. E) senility.
Kristin discovers a lump in her neck. Upon examination, her physician determines it's a tumor of the thyroid and performs a complete removal. Which of the following is not one of the hormones Kristin will need to be supplemented with?
A. Thyroxine B. Triiodothyronine C. Calcitonin D. Cholecalciferol
The molecule HCl is an example of a(n)
A. electrolyte. B. nonelectrolyte. C. base.