The immune system responds to physical, psychological ... can affect brain development through what is called the blood-brain barrier. CSF is important because whatever is in the fluid can ...

This barrier function is impaired in asthma ... Pulmonary epithelial cells are in intimate physical contact with the immune system and secrete a wide range of cytokines and chemokines, and ...

Our cells need to be able to recognize potential invaders as a threat, the key function of the body's innate immune system ... It incorporates physical barriers, such as skin and mucous, cells ...