| Term 
 | Definition 
 
        | Groups of cells that are similar in structure and perform a common function. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | 1. Epithelial 2. Connective
 3. Muscle
 4. Nervous
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A sheet of cells that covers a body surface or lines a body cavity. |  | 
        |  | 
        
        | Term 
 
        | Functions of Epithelial Tissue |  | Definition 
 
        | 1. Protection 2. Absorption
 3. Filtration
 4. Excretion
 5. Secretion
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Another name for skin; Exposed to air and is considered a dry membrane. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Produces chemical messengers that are transported through the circulatory system.  It requires seconds, minutes or hours. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | More rapid, requiring only thousandths of a second. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Cells that transfer stimuli to other cells. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Carry information toward the cell body. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Carry information away from the cell body. |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Cells located in the brain that protect, support, and assist neurons. |  | 
        |  |