The Joints Flashcards
(19 cards)
What are the three types of joints?
Cartilaginous
Fibrous
Synovial
What do cartilaginous joints do?
These allow little movement but give movement strength.
What are cartilaginous joints useful for?
Limited movement means this joint can absorb shock from jumps and jarring to the skull and brain
Where could a cartilaginous joint be found?
The joints between the vertebrae where the intervertebral cartilage is placed
What is a fibrous joint?
A joint that allows little or no movement
Give an example of a fibrous joint
Flat bones of the skull. They are held together by fibrous connective tissue
What is a synovial joint?
The most mobile joint type in the body
What type of joint is the most useful for a dancer?
Synovial
What is flexion?
A decrease in the angle at the joint
What is extension
An increase in the angle at the joint.
What is abduction?
Movement away from the midline of the body.
What is adduction?
Movement towards the midline of the body
Elevation, depression, protraction, and retraction are all movements that can only occur where in the body?
Jaw and shoulders
What is elevation?
Moving the shoulder girdle or jaw upwards
What is depression?
Moving the shoulder girdle or jaw downwards
What is protraction?
When the jaw or clavicle are forward parallel with the ground. E.g. A projector throws an image forwards
What is retraction?
Jaw or clavicle backward from the protracted position. To retract a statement is to take it back.
What is plantar flexion?
Bending the foot downwards away from the tibia, increasing the angle at the ankle joint. Basically pointing the foot
What is Dorsi flexion?
Moving the foot towards the tibia, decreasing the angle at the ankle joint
