Question

question 25
the substance that forms the outer covering of the neck and root of a tooth is:
enamel.
dentin.
cementum.
pulp.
question 26
which of the following salivary glands produces only a mucus type of saliva?
sublinguals
parotids
submandibulars
both a and b
question 27
phagocytic cells lining liver sinusoids are called ______ cells.
chief
alpha
kupffer
hepatic

Explanation:

Question 25

To solve this, we recall dental anatomy: Enamel covers the crown, dentin is under enamel, pulp is the inner part, and cementum covers the neck and root of a tooth.

Recall salivary gland functions: Sublingual glands produce mostly mucus saliva, parotids produce serous saliva, submandibulars produce mixed. So sublinguals (option A) produce only mucus-type saliva.

In liver anatomy, Kupffer cells are phagocytic cells lining liver sinusoids. Chief cells are in stomach, alpha cells in pancreas, hepatic cells are hepatocytes (not phagocytic here).

Answer:

C. cementum.

Question 26