72. The auditory tubes open into the A. fauces D. laryngopharynx. 73. The larges
ID: 3484129 • Letter: 7
Question
72. The auditory tubes open into the A. fauces D. laryngopharynx. 73. The largest of the laryngeal cartilages is the B. oropharynx. C. nasopharynx. E. nasal cavity. A. epiglottis. B. thyroid cartilage. C. cricoid cartilage. D. corniculate cartilage E. cuneiform cartilage. 74. During swallowing, the opening into the larynx is covered by the A. epiglottis. B. thyroid cartilage. C. cricoid cartilage. D. arytenoid cartilage. E. the "Adam's apple". 75. The trachea A. is located in the pleural cavity. B. has "C" shaped cartilages that form its anterior and lateral sides. C. is lined with keratinized squamous epithelium. D. bifurcates to form the bronchioles. E. collapses when not in use. 76. Which of the following organs is part of the digestive tract or alimentary canal? A. salivary gland B. liver C. gallbladder D. stomach E. pancreas 77. Which layer of the digestive tract is in direct contact with the food consumed? A. mucosa B. muscularis C. submucosa D. serosa E. peritoneumExplanation / Answer
72)auditory tube also called eustachian tube.it connects the middle ear to nasopharynx.it gives air supply to middle ear and also clear the mucus in the middle ear
73)thyroid cartilage is the largest cartilage.it is situated anterior to the larynx and superior to thyroid glands.it protect the vocal cords whicha are present posterior to it.it is in between the c4 and c5.
74).during swallowing the larynx is covered by epiglottis.it is a flap lie elastic cartilage covered by mucous membrane.during swallowing the backward movement of tongue forces the epiglottis to cover the gotttis.
75)trachea:
it has c shaped cartilage and form its anterior and lateral sides.it is lined psuedostratified columnar epithelium.the c shaped cartilage prevent the collapse of trachea.
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