Pepsin
What will be an ideal response?
Answer: enzyme produced in the mucosal lining of the stomach that acts to degrade protein. to polypeptides.
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A small fold of skin attaches the glans clitoris to the labia minor. A similar structure attaches the glans penis to the prepuce. Which of the following would be the most appropriate name for these structures?
a. frenulum b. papilla c. septum d. vestibule e. ampulla
When fluid flow through the distal tubule increases as a result of increased GFR, the macula densa cells send a chemical message to the neighboring afferent arteriole. The afferent arteriole constricts, increasing resistance and decreasing GFR. This type of autoregulation involving both the kidney tubule and the arteriole is known as ________.
Fill in the blank(s) with the appropriate word(s).
Of the steps in excitation-contraction below, which step occurs before the others?
a. Exposed actin sites bind with myosin cross bridges. b. Sodium channels open in the fiber's membrane. c. Calcium is released from the sarcoplasmic reticulum. d. Troponin binds calcium. e. Attachment of ATP allows for cross bridge detachment.
Which of the following could contain cell bodies of second order sensory neurons?
a. dorsal root ganglia b. posterior grey horns c. collateral ganglia d. ciliary ganglia