Movements Notes PDF

Movements Three basic types of movement 1. Angular movement – movements change the angle between bones 2. Rotation – movement around a bone's long axis 3. Gliding – one bone across the surface of another...

Movements Three basic types of movement 1. Angular movement – movements change the angle between bones 2. Rotation – movement around a bone's long axis 3. Gliding – one bone across the surface of another 69 3. The Human Body: Orientations & Terminology  Angular Movements: Increase or decrease angle between bones Movements involve: Flexion and extension Abduction and adduction Circumduction 71 3. The Human Body: Orientations & Terminology  Angular Movements Flexion Extension Decrease Increase angle angle 72 3. The Human Body: Orientations & Terminology  Angular Movements Flexion Extension 73 3. The Human Body: Orientations & Terminology  Angular Movements ABDuction: Away from midline Abducted away from body ADDuction: Towards midline Added to the body Circumduction: Combination of flexion, adduction, extension, and abduction at a joint. 74 3. The Human Body: Orientations & Terminology  Rotational Movements Involves turning movement of a bone around its long axis The movement between atlas and axis vertebrae Occurs at the hip and shoulder joints Medial and lateral rotation 75 3. The Human Body: Orientations & Terminology  Special Movements || bones, like soup Supination – forearm rotates laterally – palm faces anteriorly Pronation – forearm rotates medially – palm faces posteriorly 76 3. The Human Body: Orientations & Terminology  Special Movements Dorsiflexion - The top (dorsum) of the foot moves toward the shin Plantarflexion - The toes are pointed downward. 77 3. The Human Body: Orientations & Terminology  Special Movements Inversion - The foot (plantar) rolls inward (medial) and the ankle rolls outward (lateral) Eversion – The foot (plantar) rolls outward (lateral) and the ankle rolls inward (medial) 78 3. The Human Body: Orientations & Terminology  Special Movements Protraction – non angular movement of jutting out the jaw Retraction – opposite movement to protraction *scapula Also observed in ths bone 79 3. The Human Body: Orientations & Terminology  Special Movements Elevation – lifting a body superiorly Depression – moving the elevated part inferiorly *scapula Also observed in this bone 80 3. The Human Body: Orientations & Terminology  Special Movements Opposition – Thumb touches other fingertips (opposite is reposition) Includes thumb abduction/adduction while flexing to touch other fingers. Allows us to grab & manipulate with our hands 81 3. The Human Body: Orientations & Terminology  Special Movements Crucial evolutionary advantage Evolved ~2.6 million years ago when ancestors began using stone tools more frequently hunt better = high nutrition = more brain development 82 3. The Human Body: Orientations & Terminology  Gliding Movements Flat surfaces of two bones slip across each other Gliding occurs between: Carpals Tarsals Articulate process of vertebrae's 83 3. The Human Body: Orientations & Terminology