46. Air flows from the larynx to the trachea, then enters the a. Left and right

Question

46. Air flows from the larynx to the trachea, then enters the a. Left and right lungs b. Left and right main bronchi c. Pharynx d. Segmental bronchi 47. Fissures divide the lungs into a. Lobules b. Alveoli c. Lobes d. Hilus 48. The slit like passageway between the vocal folds is known as a. Epiglottis b. Esophagus c. Glottis d. Pharynx 49. The medial surface of the left lung exhibits a concavity called a. Coastal surface b. Hilum c. Cardiac notch d. Aortic impression 50. Actual gas exchange in the lungs occurs there a. bronchiole b. bronchi c. alveoli d. trachea 51. Located inferior to the diaphragm, theis the largest gland in the body, with four lobes. a. gallbladder b. liver c. pancreas d. thymus

Explanation / Answer

46. b) left and right main bronchi

The trachea branches into bronchi and air enters from trachea to bronchi during inhalation.

47. c) lobes

The right lung is divided by oblique fissure which separates inferior lobe from middle and superior lobes and the horizontal fissure which separates superior from middle lobe. The left lung is divided into two lobes by oblique fissure.

48. c) glottis

Glottis is slit-like passageway between vestibular folds and vocal folds.

49. c) cardiac notch

Cardiac notch accommodates mediastinum.

50. c) alveoli

Alveoli are air sacs through which gas exchange happens.

51. b) liver

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