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1 vote
"Patient: 48-year-old woman

Chief complaint: I can't really see well out of my right eye. My eyelids have been dropping since I woke up this morning.
Background/Patient history: Patient got Botox (botulism toxin) injections in her forehead one day prior.
Which muscles are affected by the condition (select all that apply)
a. Levator palpebrae superioris
b. Superior tarsal muscle
c. Superior rectus
d. Superior oblique"

1 Answer

3 votes

Final answer:

The muscles affected by the patient's condition are Levator palpebrae superioris and Superior tarsal muscle.

Step-by-step explanation:

The muscles affected by the patient's condition are Levator palpebrae superioris and Superior tarsal muscle.

Myasthenia gravis is an autoimmune disorder that causes muscle weakness. In this case, the patient's eyelids are drooping due to the blockage of acetylcholine receptors on the neuromuscular junction's motor endplate. The muscles responsible for raising the eyelids, the Levator palpebrae superioris and the Superior tarsal muscle, are affected by this condition.

User Cleveland
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