| Term 
 | Definition 
 
        | vertical division of the body in front and back portions |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | vertical division of the body in right and left portins |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | horizontal division of the body into upper and lower portions |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | situated above another structure, toward the head |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | situated below another structure, away from the head |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | toward the beginning or origin of a structure |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | away from the beginning or origin of a structure |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | line that runs through the center of the body or a body part |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | lying down, especially in bed |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | horizontal recumbent; lying flat on the back - "on the spine" |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | bending at the joint so that the angle between the bones is decreased |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | straightening at the joint so that the angle between the bones is increased |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | movement away from the body |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | circular movement around an axis |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | shrinking of tissue such as a muscle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | grating sound made by movement of some joints or broken bones |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | a projection arising form a bone that develops from cartilage |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | flabby, relaxed, or having defective or absent muscle tone |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | increase in the size of tissue such as muscle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | reduced muscle tone or tension |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | drawing in, involuntary contraction of muscle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | uncontrolled contractions of skeletal muscles causing stiff and awkward movements |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | tension; prolonged, continuous muscle contraction |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | shaking; rhythmic muscular movement |  | 
        |  |