WAEC Biology 2015 Question 17

Question 17

Sense Organs

A person had an accident that affected the skull but not the nose and later lost the sense of smell. The accident must have affected the

  1. A.nose by extension.
  2. B.olfactory lobes of the brain.
  3. C.passage from the nose to brain.
  4. D.part of the skull near the nose.
Show the answer and explanation

Answer: B (olfactory lobes of the brain.)

Explanation

Smell is sensed in the nose but interpreted in the olfactory lobes of the brain. If the nose is fine but smell is lost, the olfactory lobes must have been damaged.