__________ is the adrenal hormone responsible for maintaining appropriate blood sodium levels.
A. Cortisol
B. DHEA
C. Aldosterone
D. Epinephrine
Answer: C. Aldosterone
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The release of neurotransmitter from a vestibular hair cell into the synapse with a sensory neuron would increase
A) when the stereocilia of the hair cell are displaced toward the kinocilium. B) in response to any mechanical stimulation of the hair cell. C) when the stereocilia are equally displaced to either side of the kinocilium. D) when the stereocilia of the hair cell are displaced away from the kinocilium.
Adrenocorticotropic hormone
a. is a tropic hormone secreted by the adrenal cortex. b. stimulates the production of androgens by the testes. c. is controlled in part by CRH from the hypothalamus. d. both (a) and (c) above. e. all of these answers.
During muscle contraction, the I band
a. hides the H zone. b. shortens or narrows. c. overlaps the Z line. d. always remains the same length.
Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.
Answer the following statement true (T) or false (F)