Which pattern of hormone secretion, represented by epinephrine, can have dramatic changes in its concentration and circulating levels?
A. chronic hormone secretion
B. long-term hormone secretion
C. episodic hormone secretion
D. acute hormone secretion
D
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Erection of the penis results from ________.
A) a sympathetic reflex B) parasympathetic activation of the bulbourethral glands C) dilation of the veins in the penis D) a parasympathetic reflex
________ is the net movement of water through a selectively permeable membrane, from a region of greater water concentration to a region of lesser water concentration
A) Active transport B) Diffusion C) Osmosis D) None of the listed responses is correct.
Which of the following is NOT one of the four main events of respiration?
A) pulmonary ventilation B) respiratory gas transport C) residual volume D) external respiration E) internal respiration
Even though all action potentials are the same, the brain can differentiate a variety of stimuli by source and intensity. The mechanism by which the nervous system converts these action potentials into meaningful information is called neural ________.
A. recruitment B. facilitation C. pooling D. integration E. coding