MCQs – Anatomy of the Ear
1. Which part of the external ear is composed mainly of elastic cartilage?
A. Lobule
B. Auricle
C. Tympanic membrane
D. External acoustic meatus
Answer: B. Auricle
2. The external acoustic meatus is approximately:
A. 1 cm long
B. 1.5 cm long
C. 2.5 cm long
D. 4 cm long
Answer: C. 2.5 cm long
3. The smallest bone in the human body is:
A. Malleus
B. Incus
C. Stapes
D. Hyoid
Answer: C. Stapes
4. The footplate of the stapes is attached to the:
A. Round window
B. Oval window
C. Cochlear duct
D. Promontory
Answer: B. Oval window
5. The sensory nerve supply of the middle ear is mainly through the:
A. Facial nerve
B. Vagus nerve
C. Glossopharyngeal nerve
D. Trigeminal nerve
Answer: C. Glossopharyngeal nerve (IX)
6. Which muscle of the middle ear is supplied by the facial nerve?
A. Tensor tympani
B. Stapedius
C. Auricularis anterior
D. Salpingopharyngeus
Answer: B. Stapedius
7. The organ of Corti is responsible for:
A. Balance
B. Hearing
C. Smell
D. Taste
Answer: B. Hearing
8. Which structure detects angular acceleration?
A. Utricle
B. Saccule
C. Organ of Corti
D. Semicircular ducts
Answer: D. Semicircular ducts
9. The main nerve of hearing and equilibrium is:
A. Facial nerve
B. Vestibulocochlear nerve
C. Glossopharyngeal nerve
D. Trigeminal nerve
Answer: B. Vestibulocochlear nerve (VIII)
10. The primary auditory cortex is mainly located in:
A. Frontal lobe
B. Parietal lobe
C. Superior temporal region
D. Occipital lobe
Answer: C. Superior temporal region
- Teacher: Anbuselvi P