2291. Swallowing center is situated in_______________?
A. MIdbrain
B. Pons
C. Medulla
D. Cerebellum
✅ The correct answer is option C. Medulla.
Medical
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2292. Depression and Protrusion of the mandible_______________?
A. Medial ( INTERNAL) pterygoid muscle
B. Lateral (EXTERNAL) Pterygoid muscle
C. Masseter muscle
D. Temporalis muscle
✅ The correct answer is option B. Lateral (EXTERNAL) Pterygoid muscle.
2293. Which type of collagen fibers demonstrates Chicken wire configuration ?
A. Type I
B. Type II
C. Type III
D. Type IV
✅ The correct answer is option D. Type IV.
2294. Coenzyme, in an enzymatic reaction usually functions to_____________?
A. Activate the substrate
B. Increase the active sites of apoenzyme
C. Enhance the specificity of apoenzyme
D. Accept one of the cleavage products
✅ The correct answer is option D. Accept one of the cleavage products.
2295. Which of the following is the best site of absorption of calcium ?
A. Proximal segment of small intestine
B. Middle segment of small intestine
C. Ascending colon
D. Ileum
✅ The correct answer is option A. Proximal segment of small intestine.
2296. The direction of enamel rods in decidous teeth is_____________?
A. Same as permanent teeth
B. Inclined in an apical direction in the cervical third of crown
C. Inclined in an occlusal direction in the cervical third of crown
D. None of the above
✅ The correct answer is option C. Inclined in an occlusal direction in the cervical third of crown.
2297. The most important action of Secretin is to_____________?
A. neutralize the acid from the stomach
B. increase secretion of bicarbonates by pancreas
C. decrease gastric secretion
D. Cause contraction of pyloric sphincter
✅ The correct answer is option D. Cause contraction of pyloric sphincter.
2298. Which of the following is true of cellular cementum ?
A. Forms during root formation
B. Forms after the eruption of the tooth
C. Seen at the coronal portion of the tooth
D. Formation is a slow process
✅ The correct answer is option B. Forms after the eruption of the tooth.
2299. R-RNA is mainly produced mainly in___________?
A. Nucleus
B. Nucleolus
C. Ribosome
D. Endoplasmic reticulum
✅ The correct answer is option B. Nucleolus.
2300. During inspiration when the diaphragm contracts, the intrapleural pressure becomes_____________?
A. More negative
B. Less negative
C. Positive
D. Equal to the intra alveolar pressure
✅ The correct answer is option A. More negative.