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What is anatomical position?
- Erect / Supine (lying on back)
- Arms and legs adducted (close to the body)
- Head and feet facing forward (anterior)
- Palms supinated (palms facing upward)
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What are the planes of movement?
- 1. Sagittal (Median)
- 2. Frontal (Coronal)
- 3. Transverse (Horizontal)
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Describe the sagittal plane.
- Longitudinal plane that divides body into left and right halves (not necessarily equal halves)
- The mid-sagittal plane is divided into equal left and right halves
- Somersaults, front flips, and squats occur in the sagittal plane
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Describe the frontal plane.
- Vertical plane that divides body into anterior and posterior parts
- Cartwheels, jumping jacks, and lateral raises occur in the frontal plane
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Describe the horizontal plane.
- Horizontal plane
- Perpendicular to both sagittal and frontal planes
- Divides the body into superior and inferior parts
- Trunk twists occur in the horizontal plane
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Medial
Toward the midline
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Lateral
Away from the midline
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Proximal
Nearer to the trunk
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Distal
Away from the trunk
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Plantar
Towards sole of foot
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Superficial
Toward surface (skin)
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Ipsilateral
Same side (right knee, right shoulder)
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Contralateral
Opposite side (right knee, left knee)
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AB-duction
Away from the trunk
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AD-duction
Toward the trunk
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Horizontal AB-duction
Arm out to the side
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Horizontal AD-duction
Arm across the chest
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Circumduction
Circular movement of joint (this can only occur at ball and socket joints like the hip and shoulder)
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Dorsiflexion
Top of foot moves toward tibia
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Plantarflexion
Sole of foot moves downward (standing on toes is ankle plantarflexion)
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Eversion
Sole of foot moves outward
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Inversion
Sole of foot moves inward
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Extension
Straightening; Increasing joint angle
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Flexion
Bending; Decreasing joint angle
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Pronation
Rotation on axis of bone; turning palms down
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Supination
Rotation on axis of bone; turning palms up
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Radial Deviation
Moving hand laterally (away from midline); occurs at the wrist
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Ulnar Deviation
Moving hand medially (toward the midline); occurs at the wrist
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Internal Rotation
Medial; rotation with axis of bone toward body (throwing a ball)
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External Rotation
Lateral; rotation with axis of bone away from body (getting into position to throw a ball)
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Lateral Flexion
Occurs at trunk of neck; bending left or right (MUST specify the direction)
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Scapular Elevation
Moving scapula superiorly (shoulder shrug)
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Scapular Depression
Moving scapula inferiorly
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Scapular Retraction
Moving scapula toward spine (like a cable row or going down into push-up position)
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Scapular Protraction
Moving scapula away from spine (like giving a "bear hug")
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Retrusion
Mandible moving posteriorly
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Protrusion
Mandible moving anteriorly
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Occlusion
Elevation of the mandible (closing the mouth)
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Mandibular Depression
Lowering of the mandible (opening the mouth)
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