Q: 104 (SSC/NA)
question_subject:
Science
question_exam:
SSC
stats:
0,1,2,1,0,1,1
keywords:
{'ear ossicles': [1, 0, 0, 0], 'middle ear': [1, 0, 0, 0], 'otoconia': [1, 0, 0, 0], 'endolymph': [1, 0, 0, 0], 'cavity': [1, 0, 0, 1], 'perilymph': [1, 0, 0, 0]}
The correct answer is option 1, air. The cavity of the middle ear in humans contains air. This air-filled space is known as the tympanic cavity. It is located between the eardrum (tympanic membrane) and the inner ear. The middle ear is connected to the nasopharynx by the Eustachian tube, which helps regulate air pressure in the middle ear. This allows the eardrum to vibrate properly and transmit sound waves to the inner ear. The presence of air in the middle ear is important for maintaining proper hearing and balance.