All of the following terms correctly match with their meaning, except -

Correct option is D

(d) PTOSIS = Dilation of the pupil
Explanation:
Each of the terms in the question is a medical condition related to the nervous system and sensory organs. Let’s examine them one by one:
1. Vertigo – (Correctly matched)
· Definition: A sensation of spinning or dizziness, even when a person is stationary.
· Cause: It occurs due to problems in the inner ear (vestibular system) or the brain (central nervous system disorders).
· Example: Benign Paroxysmal Positional Vertigo (BPPV), Meniere’s disease, and vestibular neuritis.
2. Nystagmus – (Correctly matched)
· Definition: Involuntary, rapid, and repetitive movement of the eyeballs, which can be side-to-side (horizontal), up and down (vertical), or rotational.
· Cause: Neurological disorders, inner ear problems, alcohol intoxication, or congenital conditions.
· Example: Multiple Sclerosis (MS), head trauma, or drug-induced nystagmus.
3. Tinnitus – (Correctly matched)
· Definition: Perception of ringing, buzzing, or hissing sounds in the ears without an external source.
· Cause: Damage to the cochlea (inner ear), prolonged exposure to loud noise, or ear infections.
· Example: Seen in age-related hearing loss (presbycusis) or ototoxic drug effects.
4. Ptosis – (Incorrect match, correct definition below)
· Definition: Drooping of the upper eyelid due to weakness of the levator palpebrae superioris muscle.
· Cause:
· Neurological disorders (e.g., Myasthenia Gravis, Horner’s syndrome, Cranial nerve III palsy).
· Muscular disorders (e.g., Myotonic dystrophy).
· Congenital ptosis (present from birth).
· Correction: Ptosis does NOT refer to dilation of the pupil. Instead, dilation of the pupil is called Mydriasis, which occurs due to damage to the oculomotor nerve (CN III) or the use of drugs like atropine.
Final Answer:
(d) PTOSIS = Dilation of the pupil is incorrect because Ptosis refers to eyelid drooping, whereas Mydriasis is the correct term for pupil dilation.