| Term 
 | Definition 
 
        | Have a narrow central lumen so blood is under high pressure |  | 
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        | Term 
 | Definition 
 
        | When the smooth middle muscular layer of the arterioles contract to control blood flow |  | 
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        | Term 
 | Definition 
 
        | When the smooth middle muscular layer of the arterioles dilate to control blood flow |  | 
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        | Term 
 | Definition 
 
        | Made of a single layer of epithelium cells |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Contain valves which prevent blood flowing backwards |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A watery yellow fluid containing blood cells, glucose, amino acids and other proteins |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | A watery yellow fluid that does not contain proteins |  | 
        |  | 
        
        | Term 
 
        | Substances such as glucose and oxygen |  | Definition 
 
        | Diffuse from tissue fluid into cells |  | 
        |  | 
        
        | Term 
 
        | Substances such as CO2 and wastes |  | Definition 
 
        | Diffuse out of the cells into tissue fluid |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Returns to the blood in the capillaries at the venule side of the capillary bed |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Is absorbed by lymphatic vessels and is now called lymph |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Returns lymph fluid to the circulatory system |  | 
        |  |