Each segment of lung tissue is divided into a number of ____ wrapped in elastic connective tissue with a lymphatic, an arteriole, a venule, and bronchioles from a terminal bronchiole.
a. alveolus
b. meatus
c. septa
d. lobules
Question 2
The respiratory system and the ____ system equally share the responsibility of supplying oxygen to, and eliminating carbon dioxide from, the body's cells.
a. cardiovascular
b. urinary
c. digestive
d. endocrine