The ____ trunk drains the thorax, lungs, heart, diaphragm, and part of the liver.
a. lumbar
b. intercostal
c. bronchomediastinal
d. thoracic
Question 2
Which structures are found in the walls of the small intestine where their macrophages destroy bacteria?
a. lacteals
b. lymph nodes
c. Peyer's patches
d. lymphatic sinuses