The bulges that give lymph vessels a string-of-beads appearance are really
A) lymph nodes.
B) pockets for valves.
C) weakened areas in the walls 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. These valves prevent backflow of lymph and ensure that lymph flows in one direction towards the lymph nodes.

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