Question

question 121
0.25 pts
the flap of tissue suspended from the midpoint of the posterior border of the soft palate is the:
fauces.
frenulum.
uvula.
gingiva.
question 122
0.25 pts
which of the following organs has a mucosal layer that is composed of columnar epithelium with a brush border of microvilli to enhance absorption?
esophagus
large intestine
small intestine
stomach
question 123
0.25 pts
the extrinsic tongue muscles differ from the intrinsic tongue muscles in that the ____ outside the tongue.
extrinsic muscles have both their insertion and origin
intrinsic muscles have their origin inside the tongue but their insertion
extrinsic muscles insert into the tongue but have their origin
intrinsic muscles have both their insertion and origin

Explanation:

Question 121

The uvula is the flap of tissue suspended from the midpoint of the posterior border of the soft palate. Fauces are the throat opening, frenulum is a fold of tissue (e.g., under the tongue), and gingiva is gum tissue.

The small intestine has a mucosal layer with columnar epithelium and microvilli (brush border) to enhance absorption. The esophagus has stratified squamous epithelium, large intestine has simple columnar but less microvilli for absorption, and stomach has simple columnar for secretion.

Extrinsic tongue muscles insert into the tongue but have their origin outside the tongue. Intrinsic muscles have both origin and insertion within the tongue. So the correct option describes extrinsic muscles' origin and insertion.

Answer:

C. uvula

Question 122