List the components of the lymphatic system and explain its role in fluid cycling throughout the body. 

Which of the following is associated with the second line of defense?

Which of the following is associated with the first line of defense. 

True or False: The upper respiratory tract consists of the trachea, bronchi, bronchioles, and alveoli.

Compare and contrast the second and third lines of defense. List two components of each line of defense. 

Which is true regarding adipocytes and adipose tissue? 

___________ are non-self molecules that trigger a response by B and T lymphocytes.

Following ovulation, the ruptured follicle in the ovary undergoes changes to become the __________ and secretes hormones. 

Matching: Match each term with its description. 

_________ is a coiled tube where sperm mature.