During female sexual arousal, the ________, which resemble the male bulbo-urethral glands, discharge their secretions near the vaginal entrance.
A) Cowper glands
B) greater vestibular glands
C) lactiferous glands
D) lesser vestibular glands
E) lactiferous sinuses
B) greater vestibular glands
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The somatic motor association area, also called the premotor cortex, is responsible for
A) involuntary motor skills. B) subconscious, voluntary activity. C) voluntary skeletal activity. D) patterned, learned activity. E) None of the answers are correct.
The parietal peritoneum is
A. a double-layered serous membrane that anchors some of the abdominal organs to the body wall. B. the serous membrane that lines the abdominal and pelvic cavities. C. the space located between the visceral and parietal pleura. D. the serous membrane that covers the lungs. E. the membrane that lines the pericardial sac.
Alveolar ventilation (VA) refers to the
A) movement of air into and out of the lungs. B) amount of air reaching the alveoli each minute. C) movement of dissolved gases from the alveoli to the blood. D) movement of dissolved gases from the blood to the alveoli. E) utilization of oxygen by alveolar cells to support metabolism.
. Which of the following statements about membrane potentials in different types of cardiac cells is TRUE?
A. Myocardial cells have a resting membrane potential of about -90 mV; pacemaker cells do not have a true resting membrane potential. B. Once threshold depolarization is reached in both myocardial and pacemaker cells, the rapid upswing of the action potential is caused by the opening of voltage-gated Na+ channels C. Voltage-gated transient (T-type) Ca2+ channels are present in all of the different types of cells of the heart. D. There are no L-type Ca2+ channels in cardiac muscle cells. E. The upstroke of the action potential is steeper in SA node cells than it is in Purkinje cells.