Question

question 7
which of the following papillae of the tongue lack taste buds?
vallate
fungiform
filiform
lingual
question 8
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
question 9
approximately how much saliva do the three pairs of compound tubuloalveolar glands (parotids, submandibulars, and sublinguals) secrete each day?
200 ml
500 ml
750 ml
1 liter

Explanation:

Question 7

Taste buds are present in vallate, fungiform, and foliate papillae. Filiform papillae are the most numerous on the tongue and are primarily for mechanical functions (like gripping food) and lack taste buds. "Lingual" is not a type of papillae in the context of taste bud presence/absence.

Extrinsic tongue muscles have their origin outside the tongue (e.g., on the mandible, hyoid bone, etc.) and insert into the tongue, allowing movement of the tongue relative to other structures. Intrinsic muscles have both origin and insertion within the tongue, for shaping the tongue. So the correct option describes extrinsic muscles inserting into the tongue with origin outside.

The three main salivary glands (parotid, submandibular, sublingual) and minor salivary glands together secrete about 1 - 1.5 liters total, but the three pairs of compound tubuloalveolar (major) glands secrete approximately 750 ml per day (minor glands contribute the rest). 200 ml is too low, 500 ml is also low, 1 liter is close but the typical value for the major glands is around 750 ml.

Answer:

C. Filiform

Question 8