Touching the tongue posterior to the sulcus terminalis can elicit a gag reflex in many patients. Which nerve carries sensation from this region?
A. Glossopharyngeal
B. Chorda tympani
C. Lingual
D. Inferior alveolar
E. Hypoglossal
Answer: A. Glossopharyngeal
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Which bone contains diaphysis and epiphysis areas, a tuberosity near its middle, and is proportionally more compact than spongy bone?
A) parietal bone B) talus C) humerus D) cervical vertebra
Which is TRUE regarding the three phases of the control of HCl secretion?
A. In the intestinal phase, an increase in osmolarity of the contents of the duodenum decreases HCl secretion. B. In the gastric phase, distension of the stomach decreases HCl secretion. C. In the cephalic phase, increased nutrient concentration in the duodenum stimulates HCl secretion. D. In the intestinal phase, increased peptide concentration in the stomach inhibits HCl secretion. E. In the gastric phase, decreased H+ concentration in the stomach inhibits HCl secretion.
Which of the following cells secretes CSF into the ventricles of the brain?
A) microglia B) basal nuclei C) ependymal cells D) substantia nigra
What are the maintenance cells in bone tissue?
A. osteochondral progenitor cells B. chondrocytes C. osteoblasts D. osteocytes E. osteoclasts