Musculoskeletal - Bones and Joints Flashcards
What is the function of cartilage?
Rubber padding protecting ends of long bones
Reduces friction and absorbs shock within joints
What is the function of compact/spongy bone?
Compact bone = denser to create hard structure in middle of bone
Spongy bones at ends of the long bones are softer, weaker and more flexible
What is the function of the epiphyseal line?
Part of bone which replaces growth plate once a person has reached adult height
What is the function of the periosteum?
Membrane that covers the other surface if bone below skin
What is the function of the medullary cavity/ marrow?
Medullary cavity = central cavity of bone where bone marrow is stored
Bone marrow is site of blood cell production
How do we move?
A joint is a place where two or more bones meet
Bones at joints are bound together by ligaments
Tendons connect muscles to bone allowing bones to move
What are the types of joints?
Fixed - cranium and pelvis
Cartilaginous - vertebrae
Synovial - ball + socket, hinge etc…
Where is ball + socket joint found?
Hip and shoulder
Where is pivot joint found?
Neck
Where is hinge joint found?
Elbow and knee
Where are sliding/gliding joints found?
Wrist and ankle
Where are fixed joints found?
Cranium and pelvis
Where is the saddle joint found
Hand
Where are condyloid joints found?
Knuckles
What are antagonistic pairs?
Muscles that work together to make movement, one relaxes as other contracts
