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Ch. 6 skeletal syst

Skeletal system

The act of bringing two bones closer together, which decreases the angle between the two bones. Flexion
The act of increasin the angle between two beones, which results in a straighting motion. Extexion
the movement of an extremity away from the midline (and imaginary line that divides the body from head to toe.) Abduction
Is the movement toward the midline. Adduction
Includes flexion, extension, abduction, and adduction. Circumduction
Movement allows a bone to move around one central axis. Thsi type of pivot motion occurs when you turn your head from side to side. Rotation
The forearm turns the hand so the palm is down ward or backward. Pronation
The palm is forward or upward. Supination
1 Frontal forms the forehead
2 parietal form the roof and sides of the skull
2 temporal house the ears
1 occipital forms the base of the kull and contains the foramen magnum.
1 ethmoid (located between the eyes) forms part of the nasal septum.
1 sphenoid (which resembles a bat) is considered the key bone of the skull; all other bones connect to it.
5 nasal (2 are nasal bones that form the bridge of the nose {your glasses sit on this bone}; 1 is the vomer bone which forms the lower part, or midline, of the nasal septum; and 2 are inferior concha bones which make up the side walls of the nasal cavity.)
2 Maxilla make up the upper jaw
2 Lacrimal (in the inner aspect of the eyes) contain the tear ducts.
2 zygomatic form the prominence of the cheek.
2 Palatine from the hard palate of the mouth
1 mandible is the lower jaw and the only movable bone in the face.
Created by: bribet2654