unit 4- Musculoskeletal System Flashcards
(57 cards)
How do we move?
Our skeleton provides a frame for muscles to attach to.
Muscles contract and relax to allow the joints to open and close which creates the movement.
What’s a joint?
Where 2 or more bones meet.
What’s a fixed joint?
Where bones meet but there’s no movement as they are fused together.
What’s freely moving joints?
They are able to move and are most of the joints within our body.
They are surrounded by a fluid called synovial fluid.
What’s a hinge joint?
Allows for movement in one direction. They allow flextion and extension.
Where are hinge joints found?
Elbows and knees
What movement does a ball and socket joint allow?
Allows for movement in almost every direction.
Where are ball and socket joints found?
At shoulders and hips.
What’s a pivot joint?
Allows for rotational movement such as moving head to say “no”
Where’s pivot joints found?
Neck
What movement does a condyloid joint allow?
Allows you to flex and extent and move side to side.
Where can a condyloid joint be found?
Fingers and toes.
What are the types of joints?
Hinge
Ball and socket
Pivot
Condyloid
Saddle
Plane (gliding)
Where does a saddle joint form?
Between bones that have articulating surfaces that have both concave and convex regions.
Where can a saddle joint be found?
Base of fingers.
What are the types of movement?
Flexion
Extension
Abduction
Adduction
Rotation
What is flexion?
Bending
When can flexion occur?
Bicep curl
What is extension?
Straightening joint
What is abduction?
Movement away from the midline of body.
What’s an example of extension?
Elbow when doing shotput.
What’s an example of abduction?
Star jump movement outwards
What is adduction?
Movement towards midline of body.
What’s an example of adduction?
Inward movement of starjump.
