After taking their wedding vows, a bride and groom often ceremonially use which of the following muscles before walking away from the altar? A) Depressor anguli oris
B) Orbicularis oris
C) Levator labii superioris
D) Platysma
E) Quadriceps femoris

B

Explanation:

The correct answer would be option B.

Orbicular oris is a muscle that runs around the outside of the mouth. It is the muscle responsible for changing the shape of the mouth during different actions such as talking, whistling, and kissing.

Depending on the intensity of the kiss though, some other muscles in the body might get involved as a result of other actions such as the movement of the head, the wagging of the tongue, etc. However, the primary muscle during kissing remains the orbicularis oris muscle.

Hence, the correct option is B.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.