2781. The most important constituent of endolymph is ___________.
A. Sodium
B. Potassium
C. Chloride
D. Protein *
2782. Antro choanal polypi are usually __________.
A. Single *
B. Multiple
C. Bilateral
D. Unilateral and multiple
2783. Father of microsurgery of ear is __________.
A. Gunnar holmgren
B. George von beksey
C. Zollener *
D. Helholtz
2784. The usual location of glomus jugulare tumor is __________.
A. Epitympanum
B. Hypotympanum *
C. Mastoid tip cells
D. Promontory
2785. The most frequent sympotom of cancer of nasophrynx is _________.
A. Mass, in the neck *
B. Blocked nose
C. Epistaxis
D. Diplopia
2786. A valsalva maneuver generates pressure of __________.
A. 10-20 mm Hg
B. 20-40 mm Hg *
C. 80-10 mm Hg
D. 120-160 mm Hg
2787. Key hole appearance of glottis is seen in laryngoscopy in __________.
A. Functional phonia
B. Bilateral complete vocal cord palsy
C. Bilateral incompletes vocal cord palsy
D. Phonesthenia *
2788. Pressure difference between middle ear and eustachian tube causing Tm rupture is _________.
A. 30 mm Hg
B. 60 mm Hg
C. 100 mm Hg *
D. 200 mm Hg
2789. Endoscopy is contraindicated in __________.
A. Esophageal varices
B. Aortic aneurysm *
C. Bronchial adenoma
D. Bronchopleural fistula
2790. Organ of corti is arranged along the inner edge of ________.
A. Reissner’s membrane
B. Basilar membrane *
C. Stria vascularis