A= The levels of organization in the body include cells, tissues, organs, and organ systems. 2. Define cell
A= Basic unit of structure and function in living things. 3. Define Tissue
A= Group of cells that perform a single function. 4. CHECK OUT TYPES OF TISSUE ON PG. 863 5. What’s the epithelial tissue?
A= Tissue that lines the interior and exterior body surfaces. 6. Connective tissue?
A= Tissue that provides support for the body and connects its parts. 7. Nervous tissue?
A= Tissue were nerve impulses are transmitted throughout the body. 8. Muscle tissue?
A= Tissue that makes the movements of the body possible. 9. What are organs?
A= Different types …show more content…
107. On what consist the first line of defense against infections?
A= Skin, saliva, mucus, and tears.
108. On what consist the second line of defense against infections?
A= The inflammatory response, the actions of interferons and fever.
109. What is the inflammatory response?
A= Nonspecific defense reaction to tissue damage caused by injury or infection.
110. What are histamines?
A= Chemical released by mast cells that increases the flow of blood and fluids to the infected area during an inflammatory response.
111. What are interferons?
A= One of a group of proteins that help cells resist viral infection.
112. What is fever?
A= Increased body temperature that occurs in response to infection.
113. What is the function of the immune system’s specific defenses?
A= It distinguishes between “self” and “other”, and they inactivate or kill any foreign substance or cell that enters the body.
114. What is the immune response?
A= The body’s specific recognition, response, and memory to a pathogen attack.
115. What is an antigen?
A= Any foreign substance that can stimulate an immune response.
116. What is an