What will happen to a person who has been stabbed in the chest if the thoracic wall is punctured but the lung is NOT penetrated?
a. the intrapulmonary pressure becomes subatmospheric
b. the intrpleural pressure becomes subatmospheric
c. the intra-alveolar pressure becomes subatmospheric
d. the lungs will collapse
Answer: d. the lungs will collapse
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In nonkeratinized stratified squamous epithelial tissue, the cells in the superficial layers are dead
Indicate whether this statement is true or false.
Aldosterone
a. enhances the ability of the kidneys to eliminate excess K+. b. directly promotes H2O conservation by the kidneys. c. secretion is encourages by angiotensin II. d. is nonsteroidal. e. is produced ion the adrenal medulla.
Which of the following is most likely to occur when a soldier stands at attention-very still, with legs and spine straight?
A. Increased blood flow to the brain B. Increased venous return C. Increased absorption of interstitial fluid by the capillaries of the feet D. Increased storage of blood in the veins of the feet and legs E. Decreased pressure in the capillaries of the feet
The exocrine portion of the pancreas produces
A) insulin. B) glucagon. C) somatotropin. D) digestive enzymes. E) bile.