21. The Immune System

Injured tissue releases chemicals called______ that mediate the four cardinal signs of inflammation, which are _____, ______,_____ , and_______.

Capillary permeability increases and plasma proteins leak into the interstitial fluid as part of the inflammatory process. Why is this desirable?

Eileen presents with flu-like symptoms, including fever, chills, and body aches.

c. What might it mean if lymphocytes instead of neutrophils were elevated? Explain your reasoning.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Neutrophils are a critical component of the response to a parasitic infection.

Complement activation

(a) Stimulates inflammation

(b) Attracts phagocytes

(c) Enhances phagocytosis

(d) Achieves a, b, and c

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Phagocytic cells of innate immunity include NK cells and basophils.

All of the following are chemical defenses against microbial infection except which of these answers?

The ____________ glands create sebum which makes the skin more __________ which decreases microbial growth.

Which of the following statements about the defensive roles of saliva and gastric juices are true?