251. Which cells of blood, are responsible for clotting?
(a) Platelets
(b) Neutrophils
(b) Erythrocytes
(d) Basophils
252. A patient, with blood group A can, be given the blood group?
(a) A orA
(b) A only
c) A and O
(d) O only
253. Myocardial infraction, is due to blockage of blood, flow in?
(a) Aorta
(b) Coronary artery
(c) Pulmonary artery
(d) Hepatic artery
254. The nasal, cavity lead in to the?
(a) Pharynx
(b) Larynx
(c) Trachea
(d) Bronchi
255. Pharynx is about, inches long?
(a) 3.5
(b) 4.5
(c) 5.5
(d) 6.5
256. The air moves from, pharynx in to the?
(a) Pharynx
(b) Larynx
(c) Trachea
(d) Bronchi
257. The larynx, open into the?
(a) Pharynx
(b) Larynx
(c) Trachea
(d) Bronchi
258. The trachea, divides into two branches, called?
(a) Pharynx
(b) Larynx
(c) Trachea
(d) Bronchi
260. The structure which, closes off the larynx when, food is being swallowed, is the?
(a) Glottis
(b) Epiglottis
(c) Internal nares
(d) Vocal cords
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