skeletal system AO2 part 2 Flashcards
what are the functions of the skeleton? ( name at least 3)
- movement
- support
- protection
- storage
- blood cell production
how are muscles joined to bones?
by tendons
how are bones joined together?
by ligaments
what are the structures of the skeleton?
- axial
- appendicular
- bone
- cartilage
what does the axial skeleton consist of?
- spine
- rib cage
- skull
- breast bone
what does the appendicular skelton consist of?
- collar bone
- shoulder blade
- arms and hands
- pelvic bone
- legs and feet
what is resorption?
breaking down the bones
what is ossification?
formation of new bone
name the different types of joints. (at least 3)
- hinge
- gliding
- pivoting
- ball and socket
what does cartilage do and where is it found?
- connects bones together
- protects the bone
- slippery layer
found between the joints
what is synovial fluid?
a fluid in the joints
what does synovial fluid do?
provides joints with lubrication to stop friction in the joints.
how does the hinge joint move?
in 1 plane minimal movement sideways
how does the pivot joint move?
rotation
how does the gliding joint move?
bones slide
how does the ball and socket joint move?
360 degrees (all directions)
hinge joint in the wrist movement
2 planes
