The tubular fluid is ____ as it enters Bowman's capsule, ____ at the beginning of the loop of Henle, ____ at the tip of the loop, and ____ as it leaves the loop to enter the distal tubule
a. isotonic, hypertonic, hypertonic, isotonic
b. isotonic, isotonic, hypotonic, hypotonic
c. isotonic, isotonic, hypertonic, hypotonic
d. hypertonic, hypotonic, hypertonic, isotonic
e. none of these answers.
C
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Which of the light micrographs in the figure below shows the type of epithelial tissue that lines the kidney tubules?
a) A b) B c) C d) D e) E
Sympathetic stimulation of the terminal bronchioles causes
A) secretion of less surfactant. B) an increase in blood supply to these areas. C) bronchodilation. D) bronchoconstriction. E) no changes; there is no parasympathetic innervation of these structures.
Answer the following statements true (T) or false (F)
1. The lungs are covered by the parietal pleura. 2. The interior walls of the thoracic cavity are covered by the visceral pleura. 3. The exchange of gases between the air in the alveoli and the blood is called external respiration. 4. A lung problem would most directly affect external respiration. A heart attack that drastically reduced stroke volume would most directly affect internal respiration. 5. Cellular respiration refers to the exchange of gases between the cells and the blood.
In the vision and equilibrium test, it can be demonstrated that vision has very little to do with the sense of equilibrium, since unsteadiness does not increase when the eyes are closed while balancing on one foot.
Answer the following statement true (T) or false (F)