Growth factors and cytotoxic factors also regulate inflammatory response. These cytokines and other chemicals recruit immune cells to the site of infection and promote healing of damaged tissue following the removal of pathogens. NFkB plays a key role in regulating the immune response to infection.
Stomata facilitate the exchange of gases in the leaf. Carbon dioxide (CO 2 ) diffuses into the leaf through the stomata for use in photosynthesis, and oxygen (O 2 ), the waste product of photosynthesis, diffuses out of the leaf through stomata. Stomata are also crucial for water transport through the xylem .
of a body system, we will first think about the organs/tissues that work together to perform. the function(s) of that system. The integumentary system consists of a major organ, skin, and many epidermal derivatives. (accessory organs), which include hair follicles, sebaceous glands, sweat glands, and nails. In addition, the organs of the integumentary system are composed of many different tissues. that perform common functions. Look at Figure 6.2, page 162, and name as many different. tissues as you can.