Which of the following structures are NOT involved with swallowing?
A. The suprahyoid muscles
B. The masseter muscle
C. The hyoid bone
D. The epiglottis
Answer: B
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A condition NOT regulated by a negative feedback loop would be:
a) childbirth b) body temperature c) blood pressure d) heart rate e) blood sugar
The cerebrospinal fluid is found in the brain, but not in the spinal cord
Indicate whether the statement is true or false
Which step(s) in the process of urine formation occur in the renal tubule?
A. Reabsorption only B. Filtration, secretion, and reabsorption C. Secretion only D. Secretion and reabsorption only E. Filtration only
What is the functional significance of gap junctions?
A) They form a barrier that isolates the basolateral surfaces from deeper tissues. B) They attach the deepest epithelial cells to the basement membrane. C) They provide firm attachments between neighboring cells. D) They strengthen the apical region and prevent leakage. E) They permit chemical communication (diffusion of ions and small molecules) that coordinates the activities of adjacent cells.