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

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

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

b. Phagocytic cells of innate immunity include NK cells and basophils.