Ch8 Le3

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Information about Ch8 Le3

Published on February 10, 2009

Author: mrsjorgenson224

Source: slideshare.net

Description

Types of joint movement (synovial joints)

Flexion, Extension & Hyperextension Flexion decreases the angle of a joint bending elbow or wrist Extension straightens a joint and returns a body part to the anatomical position Hyperextension is extension of a joint beyond 180 degrees

Flexion decreases the angle of a joint

bending elbow or wrist

Extension straightens a joint and returns a body part to the anatomical position

Hyperextension is extension of a joint beyond 180 degrees

Abduction & Adduction Abduction is movement of a part away from the midsagittal line -- raising the arm to the side Adduction is movement towards the midsagittal line

Abduction is movement of a part away from the midsagittal line -- raising the arm to the side

Adduction is movement towards the midsagittal line

Elevation and Depression Elevation is a movement that raises a bone vertically mandibles are elevated during biting & clavicles during a shrug Depression is lowering the mandible or the shoulders

Elevation is a movement that raises a bone vertically

mandibles are elevated during biting & clavicles during a shrug

Depression is lowering the mandible or the shoulders

Protraction & Retraction Protraction is movement of a bone anteriorly (forward) on a horizontal plane thrusting the jaw forward, shoulders or pelvis forward Retraction is movement of a bone posteriorly

Protraction is movement of a bone anteriorly (forward) on a horizontal plane

thrusting the jaw forward, shoulders or pelvis forward

Retraction is movement of a bone posteriorly

Lateral & Medial Excursion Lateral excursion is sideways movement to right or left Medial excursion is movement back to the midline Side-to-side grinding movements occurring during chewing

Lateral excursion is sideways movement to right or left

Medial excursion is movement back to the midline

Side-to-side grinding movements occurring during chewing

Circumduction Movement in which one end of an appendage remains stationary while the other end makes a circular motion Sequence of flexion, abduction, extension & adduction movements baseball player winding up for a pitch

Movement in which one end of an appendage remains stationary while the other end makes a circular motion

Sequence of flexion, abduction, extension & adduction movements

baseball player winding up for a pitch

Lateral and Medial Rotation Movement of a bone turning on its longitudinal axis rotation of trunk, thigh, head or arm Medial rotation turns the bone inwards Lateral rotation turns the bone outwards

Movement of a bone turning on its longitudinal axis

rotation of trunk, thigh, head or arm

Medial rotation turns the bone inwards

Lateral rotation turns the bone outwards

Supination & Pronation Occurs in the forearm and foot Supination rotation of forearm so that the palm faces forward inversion and adduction of foot (raising the medial edge of the foot) Pronation rotation of forearm so the palm faces to the rear eversion and abduction of foot (raising the lateral edge of the foot)

Occurs in the forearm and foot

Supination

rotation of forearm so that the palm faces forward

inversion and adduction of foot (raising the medial edge of the foot)

Pronation

rotation of forearm so the palm faces to the rear

eversion and abduction of foot (raising the lateral edge of the foot)

Opposition & Reposition Opposition is movement of the thumb to approach or touch the fingertips Reposition is movement back to the anatomical position Important hand function that enables the hand to grasp objects

Opposition is movement of the thumb to approach or touch the fingertips

Reposition is movement back to the anatomical position

Important hand function that enables the hand to grasp objects

Dorsiflexion & Plantar Flexion Dorsiflexion is raising of the toes as when you swing the foot forward to take a step (heel strike) Plantarflexion is extension of the foot so that the toes point downward as in standing on tiptoe

Dorsiflexion is raising of the toes as when you swing the foot forward to take a step (heel strike)

Plantarflexion is extension of the foot so that the toes point downward as in standing on tiptoe

Inversion & Eversion Inversion is a movement in which the soles are turned medially Eversion is a turning of the soles to face laterally

Inversion is a movement in which the soles are turned medially

Eversion is a turning of the soles to face laterally

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