Which of the following would stimulate gastric secretion?
A. Acidic chyme in duodenum
B. Gastrin
C. Cholecystokinin
D. Secretin
E. Pepsin
Answer: B
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Transcellular fluid
a. is the sum of fluid within all of the cells b. consists of a number of small specialized fluid volumes, all of which are secreted by specific cells into a particular body cavity to perform a specialized function c. plays a crucial role in fluid balance d. includes the lymph e. lies in the spaces between the cells
The heart is located
A. inside the visceral pericardium but outside the parietal pericardium B. inside the parietal pericardium but outside the visceral pericardium C. outside the visceral pericardium and outside the parietal pericardium D. inside the visceral pericardium and inside the parietal pericardiuma
The heavy chains of an immunoglobulin differ by having _____.
A) fewer lipids B) more amino acids C) more antigen sites D) more sulfur atoms
Explain adaptation, and differentiate between peripheral adaptation and central adaptation
A) Adaptation is an increase in receptor sensitivity in the presence of constant stimulation. Peripheral adaptation reduces the amount of information sent to the CNS. In central adaptation, the awareness of the stimulus virtually disappears. B) Adaptation is a decrease in receptor sensitivity in the presence of constant stimulation. Peripheral adaptation reduces the amount of information sent to the CNS. In central adaptation, the awareness of the stimulus virtually disappears. C) Adaptation is an increase in receptor sensitivity in the presence of constant stimulation. Peripheral adaptation increases the amount of information sent to the CNS. In central adaptation, the awareness of the stimulus is enhanced. D) Adaptation is a decrease in receptor sensitivity in the presence of constant stimulation. Peripheral adaptation increases the amount of information sent to the CNS. In central adaptation, the awareness of the stimulus is enhanced. E) Adaptation is a decrease in receptor sensitivity in the presence of constant simulation. In peripheral adaptation, the awareness of the stimulus virtually disappears. Central adaptation reduces the amount of information received by the CNS.