In the male, the urethra is subdivided into three parts; the middle portion is called the ____ urethra
a. prostatic
b. spongy
c. cavernous
d. membranous
d
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Proprioceptors are sensory receptors that monitor the position of skeletal muscles and ________.
Fill in the blank(s) with the appropriate word(s).
What effect does a long period of skeletal muscle inactivity have on blood flow?
A. It causes blood pooling and a slowing of blood flow. B. It causes a compensatory increase in arterial pressure. C. It causes a sharp decrease in heart rate. D. It causes a sharp decrease in respiratory rate.
Which of the following extensors of the head is the most superficial?
A. Sternocleidomastoid B. Splenius capitis C. Trapezius D. Semispinalis capitis E. Temporalis
A patient has severe pneumonia, which has thickened the respiratory membrane. Despite oxygen therapy, he still has rapid respiration and feels as if he is not getting enough air. This is because
A. the oxygen increases the stimulation of the carotid and aortic bodies. B. the oxygen stimulates the respiratory center to increase the respiratory rate. C. his blood pH increased and stimulated an increase in his respiratory rate. D. even though he is receiving enough oxygen, carbon dioxide and hydrogen ions accumulate in his blood and cause the respiratory rate to continue to increase. E. oxygen cannot diffuse across the thickened membrane.