directional terms and joint movements miss van heuven
TRANSCRIPT
Horizontal vs. vertical Make sure that you know the difference between horizontal
and vertical!
Horizontal (side to side)Vertical (up and down)
Hint: To help you remember, think about the sun rising and setting over the “horizon”
Anatomical directional terms
Anterior The front, or in front of
Posterior The back, or behind (towards the rear)
Anatomical directional terms Distal Away from, furthest from the origin
Proximal Near, closest to the origin
Anatomical directional terms Lateral Away from the mid-line (center) Towards the sides
Medial Towards the mid-line (center) Away from the sides
Synovial Joints Synovial Joints (also known as Diarthroses) are freely
moveable joints These joints allow 18 different movements
Types of Synovial Joint Movements Abduction
Movement of the limbs away from the middle of the body (Describes movement of limbs only)
Types of Synovial Joint Movements Adduction
Movement of the limbs toward the middle of the body (Describes movement of limbs only)
Types of Synovial Joint Movements Rotation
Movement of a bone on an axis, toward or away from the body
Types of Synovial Joint Movements Circumduction
Circular movement of limbs around an axis The proximal portion of the limb remains stationary
Proximal = where the limb attaches to the body
The distal portion moves in a circle Distal = the point on the limb that is furthest from the proximal
attachment
Joint Movements Activity Pause for a class activity. (SIMON SAYS) Can students demonstrate knowledge of these joint
movements?
Teacher Slide Anterior Posterior Distal Proximal Horizontal Vertical Lateral Medial Superior Inferior Flexion Extension Hyper-extension Rotation Adduction Abduction
Types of Synovial Joint Movements Supination
To turn upward To face a limb or body towards the ceiling Ex: Turn palm upward so that it faces the sky
Types of Synovial Joint Movements Pronation
To turn downward To face a limb or body towards the ground Ex: turn palms downward so that they face the floor
Types of Synovial Joint Movements Plantar Flexion
Movement that extends the foot Ex: Pointing your toes like a ballerina
Types of Synovial Joint Movements Dorsiflexion
Movement that flexes the foot Ex: Try to touch your toes to the front of your shin
Types of Synovial Joint Movements Protraction Moving a body part forward (in the transverse plane) Ex: shoulders and jaw
Types of Synovial Joint Movements Retraction Moving a body part backwards (in the transverse plane) Ex: Neck or jaw
Types of Synovial Joint Movements Elevation Lifting a body part upward (superiorly) (Occurs in the frontal plane) Ex: Shoulders
Types of Synovial Joint Movements Depression Moving a body part downward (inferiorly) (Occurs in the frontal plane) Ex: Shoulders
Types of Synovial Joint Movements Opposition Moves the thumb to the tips of the other fingers (That is why they are called “Opposable thumbs”)