In the retina, the ________ cells are the second-order neurons of the visual pathway whose axons form the optic nerve.
Fill in the blank(s) with the appropriate word(s).
ganglion
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When a negative energy balance exists,
a. the body must make use of stored energy reserves. b. the caloric content of the food ingested is less than the energy output. c. the caloric content of the food ingested exceeds the energy lost due to heat or work. d. energy has been destroyed by catabolic processes within the body. e. both (a) and (b) above.
A 25-year-old medical student in good health develops severe pain in the area around her umbilicus. She com- plains of nausea and is taken to the emergency depart- ment. While there, the pain becomes more localized in the lower right quadrant of her abdomen and the physician diagnoses appendicitis. Which of the following nerves per- ceived pain in the area around the umbilicus and most likely carried the pain sensations to the central nervous system?
A. Inferior hypogastric nerves B. Lesser splanchnic nerves C. Pudendal nerves D. Superior hypogastric nerves E. Vagus nerves
Sensory receptors for balance are found in the
A. pinna. B. cochlea. C. auditory ossicles. D. semicircular canals. E. auditory tube.
Continuous capillaries
A. are freely permeable to large molecules such as hormones. B. have a wall where the endothelial cells fit very tightly together. C. are more permeable than fenestrated capillaries but not as permeable as sinusoidal capillaries. D. have many thin areas called fenestrae. E. are characterized by continuous pores.