Download cryders_joint_muscle-movements

 Joint`s structure relates to the movement of joint
 Gliding Movement: Occurs in plane joints between two
flat surfaces of bones which slide or glide over each other,
eg. Between carpal bones
 slight movement
 Angular Movement:
 When one part of the body bent relative to another part;
thereby changing the angle between two parts
– Flexion and Extension
• Plantar and Dorsiflexion
– Abduction and Adduction
• Flexion: movement of a body part anterior to the
coronal plane
• Extension: movement of a body part posterior to
the coronal plane
– Plantar flexion:
standing on the toes
– Dorsiflexion: foot lifted
toward the shin,
such as walking on the
heels
• Abduction: movement
away from the median
plane
Abduction
• Adduction: movement
toward the median plane
Adduction
• Involves rotation of a structure
around an axis or movement
of the structure in an arc
• Rotation: turning of a
structure on its long axis
– Examples: rotation of the head,
humerus, entire body
– Medial rotation turns the
bone inwards
– Lateral rotation turns the
bone outwards
• Pronation/Supination:
•
Unique rotation of the
forearm
– Pronation: palm faces
posteriorly
– Supination: palm faces
anteriorly
• Circumduction
– The circular or conical
movement of a body part
– Consists of a combination
of flexion, extension,
adduction, and abduction
– Occurs at freely movable
joints
– Eg. Windmilling the arms or
rotating the hand from the
wrist
• Unique to only one or two joints
• Types
– Elevation and Depression
– Protraction and Retraction
– Excursion
– Opposition and Reposition
– Inversion and Eversion
• Elevation: moves a structure superior
• Depression: moves a structure inferior
• Examples: shrugging the shoulders, opening and
closing the mouth
• Protraction:
• Movement of a bone
anteriorly
• Eg. Thrusting the jaw
forward, shoulder
forward
• Retraction:
• Moves structure back to
anatomic position or
even further posteriorly
• Lateral: moving mandible to the right or left of midline
• Such as in grinding the teeth or chewing the food
• Medial: return the mandible to the midline
• Opposition:
movement of thumb
and little finger
toward each other
• Reposition: return
to anatomical
position
• Inversion:
• Inversion is a
movement in
which the soles
are turned
medially
• Eversion:
• Eversion is a
turning of the
soles to face
laterally