Anatomical Terms of Motion - BPK 326

anatomical terms of movement

described in relation to anatomical position

- most movements occur at joints (where 2 bones meet)

- non-skeletal elements also move (tongue, eyelids, eyes)

- like anatomical terms of direction or positional relationship, terms of movements are often considered as pairs of opposing movements

flexion

movement that reduces the joint angle

- angle between 2 bones or parts

- joint angle is small

extension

movement that increases joint angle

- joint angle is large

elbow flexion full movement

type of movement: flexion

body part moving: elbow

anatomical plane: sagittal (left and right)

axis which they occur: frontal (medial/lateral)

- flexion of the forearm at the elbow occurs in the sagittal plane, about the medial-bilateral axis (frontal axis)

abduction

movement away from midline

adduction

movement toward the midline

medial (internal) rotation

rotation of the anterior surface toward the midline

lateral (external) rotation

rotation of the anterior surface away from the midline

recursion/protrusion

movements of the jaw

protrusion - jaw outward

recursion - jaw inward

protraction/retraction

movement of the scapula

- sliding on the posterior thoracic wall, not at a true joint

protraction - arms together

retraction - pull shoulder blades together

hand movements - extension / flexion

hand movements - opposition / reposition

foot movements - plantar flexion / dorsiflexion

at ankle joint

foot movements - eversion / inversion

at subtalar joint

foot movements - pronation/supination