The structure that produces sound in the larynx is the:
A. Epiglottis
B. Vocal cords
C. Pharynx
D. Trachea
Answer: Option B
Solution (By JKExamLibrary)
The vocal cords (folds) in the larynx vibrate as air passes, producing sound. Pitch is controlled by tension. Epiglottis prevents food entry, trachea is airway.
Explanation:
GIP (glucose-dependent insulinotropic peptide) is released from the small intestine in response to fat and glucose, inhibiting gastric secretion and motility. Gastrin stimulates acid secretion, secretin stimulates bicarbonate, CCK stimulates gallbladder contraction.
Explanation:
Immunohistochemistry (IHC) uses enzyme- or fluorophore-linked antibodies to visualize specific antigens in tissue sections. ELISA is for liquid samples, Western blot for membrane, flow cytometry for cells.
Explanation:
The left ventricle pumps blood into the aorta and to the systemic circulation. Its wall is the thickest because it must generate high pressure.
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