The bulges that give lymph vessels a string-of-beads appearance are really
A) lymph nodes.
B) pockets for valves.
C) weakenings in the wall of the vessels.
D) temporary constrictions caused by bulging skeletal muscles that squeeze the lymph vessel.

Question

Quizplus · Accepted Answer

The bulges that give lymph vessels a string-of-beads appearance are pockets for valves. The valves help to prevent backflow of lymphatic fluid as it moves through the vessels.

The Bulges That Give Lymph Vessels a String-Of-Beads Appearance Are