Skeleton and Bones Flashcards
what are some functions of the skeleton?
support: the skeleton holds the body upright and helps it keep it’s shape
protect: bones of the skeleton protect delicate organs
movement: muscles pull on bones and move the body
making blood cells: bone marrow inside the bones produces blood cells
what is another name for the shoulder blade?
the scapula
what is the function of the ligament?
strong to hold together and elastic to allow movement
synovial membrane/function
produces synovial fluid and seals it in the joint
cartilage/function
it is smooth to reduce friction anf flexible to absorb shock
synovial fluid/function
lubricates the joint to reduce friction
capsule/function
tough fibrous tissue keeping joint together
what three types of joints are there?
- immovable
- slightly movable
- freely movable/synovial
what 4 types of synovial joints are there?
- ball and socket
- hinge
- pivot (eg base of skull)
- sliding
pulled muscle
when a muscle is over stretched. some of the muscle fibres may tear causing the muscle to contract. swelling of the muscle is due to internal bleeding
sprains
a torn ligament at a joint eg wrist and ankle
dislocation
the bones move out of place.
fractures
broken bones like
- the lower arm / radius
- the collar bone
- the ankle
what are bony projections for?
the attatchment of muscles
what is the rounded head for?
to allow movement of the leg in all directions
