JOINTS, MOVEMENTS, LIGAMENTS AND TENDONS (SOC 13) Flashcards
FLEXION:
DEFINITION: BENDING MOVEMENT THAT DECREASE THE ANGLE BETWEEN BODY PARTS.
JOINTS THAT PROVIDE IT: SHOULDER, HIP.
EXAMPLES IN SPORT: SOMEONE WORKING OUT IN THE GYM BENDS THIER ARM UP WHEN DOING A BICEP CURL.
EXTENSION:
DEFINITION: STRAIGHTENING MOVEMENT THAT INCREASE THE ANGLE BETWEEN BODY PARTS.
JOINTS THAT PROVIDE IT: SHOULDER, HIP.
EXAMPLES IN SPORT: A SWIMMER SWINGS THE ARMS BACKWARDS IN PREPERATION FOR A RACING DIVE.
ADDUCTION:
DEFINITION: MOVEMENT THAT PULLS TOWARDS THE MIDLINE OF BODY.
JOINTS THAT PROVIDE IT: SHOULDER, HIP.
EXAMPLES IN SPORT: A GOLFER ON THE CLUB DOWN TOWARDS THE BALL.
ABDUCTION:
DEFINITION: MOVEMENT THAT PULLS AWAY FROM MIDLINE OF BODY.
JOINTS THAT PROVIDE IT: SHOULDER, HIP.
EXAMPLES IN SPORT: A GYMNAST MOVES THEIR ARMS OUT SIDEWAYS AT THE SHOULDER WHEN PERFORMING ‘THE CRUCIFIX’ ON THE RINGS.
ROTATION:
DEFINITION: MOVEMENT AROUND A SINGLE AXIS OR PIVOT POINT.
JOINTS THAT PROVIDE IT: SHOULDER, HIP.
EXAMPLES IN SPORT: A TENNIS PLAYER SERVES.
CIRCUMDUCTION:
DEFINITION: MOVING IN A CIRCULAR OR CONICAL SHAPE.
JOINTS THAT PROVIDE IT: SHOULDER, HIP.
EXAMPLES IN SPORTS: A CRICKETER BOWLS A BALL.
DORSI-FLEXION:
DEFINITION: BENDING OR FLEXING THE TOES UP, CLOSER TO THE SHIN.
JOINTS THAT PROVIDE IT: ANKLE.
EXAMPLES IN SPORT: A SPRINTER POSITIONS THIER FEET IN THE STARTING BLOCKS.
PLANTAR-FLEXION:
DEFINITION: EXTENDING OR POINTING THE TOES DOWN, AWAY FROM THE SHIN.
JOINTS THAT PROVIDE IT: ANKLE.
EXAMPLES IN SPORT: A FLOOR GYMNAST POINTS THEIR TOES.
JOINTS:
A JOINT IS A PLACE WHERE TWO OR MORE BONES MEET. IMPORTANT FOR MOVEMENT & ROTATION. ALTHOUGH THE EXTENT OF THE AND FREEDOM OF THE MOVEMENT VARIES FROM JOINT TO JOINT. (IMPORTANT)
4 CLASSIFICATION OF JOINTS:
PIVOT
HINGE
BALL & SOCKET
CONCLYLOID.
LIGAMENT AND TENDONS:
BOTH LIGAMENT AND TENDONS ARE TYPES OF STRONG FIBROUS TISSUE.
LIGAMENTS:
ELASTIC FIBRES THAT JOIN ONE BONE TO ANOTHER, STOPS KNEES COMING OUT OF PLACE.
TENDONS:
NON - ELASTIC FIBRES THAT ATTACH MUSCLE TO THE BONE - HEPLS YOU MOVE - LETS YOU APPLY POWER AND MOVEMENT - GROWS IN STRENGTH THE MORE IN USE.
