This endocrine gland sits atop the kidneys. It's inner most portion releases the hormone epinephrine
A) thyroid B) thymus C) pancreas D) adrenal
Answer: D
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Which of the following is true about the movement of ions across excitable living membranes?
A) Ions always move actively across membranes through leakage channels. B) Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. C) Sodium gates in the membrane can open in response to electrical potential changes. D) The bulk of the solutions inside a cell are negatively charged.
Sympathetic __________ to a particular organ exists when the sympathetic stimulation of that organ increases above tone level
Fill in the blank(s) with correct word
Homeostasis refers to the relative constancy of the external environment.
Answer the following statement true (T) or false (F)
The scrotum contains the testes and spermatic cords.
Answer the following statement true (T) or false (F)