The inhibition of an antagonistic muscle so that the agonist can do the intended movement is due to ________.
A. crossed-extensor reflex
B. flaccid paralysis
C. reciprocal innervation
D. monosynaptic reflex
Answer: C
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Active transport, facilitated diffusion, and osmosis all directly require the expenditure of metabolic energy.
Answer the following statement true (T) or false (F)
Which one of the following bone cells would have the greatest number of lysosomes?
A. Osteoblasts B. Osteoclasts C. Osteocytes D. Osteogenic cells E. Stem cells
Which statement is not correct?
a. Normally the effective plasma concentration of a hormone is regulated by appropriate adjustments in the rate of its secretion. b. In order to maintain homeostasis, the rate of hormone secretion remains constant. c. All hormones are regulated through negative feedback controls. d. Neuroendocrine reflexes produce a sudden increase in hormone secretion in response to a specific, usually external, stimulus. e. Some organs have endocrine and exocrine functions.
Why does peritonitis, inflammation of the peritoneal membrane, affect multiple digestive organs?
a) The peritoneal membrane surrounds many abdominal organs, so inflammation of the membrane will affect multiple organs rapidly. b) The peritoneal membrane surrounds the accessory organs of the digestive system so inflammation of the membrane will rapidly affect all the other abdominal organs. c) The peritoneal membrane does not surround the accessory organs of the digestive system and so inflammation of the membrane will spread to these organs rapidly. d) The peritoneal membrane surrounds the stomach only, so inflammation of the membrane will affect those not protected by it.