In Bell’s palsy , food is retained in upper and lower buccal and labial folds due to weakness of following muscle:
a. Buccinator muscle
b. Risorius muscle
c. Temporalis muscle
d. Masseter muscle
Ans. Bell’s palsy is unilateral dysfunction of the facial nerve leading to
abrupt paralysis of the muscles on affected side. Its feature are eye remain open on affected
side, corner of the mouth droped. As a
result of buccinator muscle weakness food is retained in both upper and lower
buccal and labial folds, facial expression changes remarkably
