Skeletal System Flashcards
Name major bones (19)
Cranium, clavicle, sternum,ribs, vertebrae, pelvis,femur, patella, tibia, fibula, tarsal,metatarsal, phalanges, scapula,humerus,radius,ulna,carpal,metacarpal
Name the 6 functions of the skeleton
Shape/support Posture Protection Movement Blood cell production Mineral storage
Definition of a joint
Where 2 or more bones join
What is a synovial joint?
A freely moveable joint
Name 2 types of synovial joint
Hinge (in the elbow and knee)
Ball and socket (in the hip and shoulder)
List 6 types of movement
Flexion Extension Rotation Abduction Adduction Circumduction
Define flexion movement
Shortening the angle at a joint (bending)
Define extension movement
Lengthening the angle at a joint (straightening)
Define rotation movement
Turning around a point
Define abduction movement
Taking a limb away from the midline of the body
Define adduction movement
Bringing a limb towards the midline of a body
Define circumduction movement
A mixture of flexion, extension, abduction and adduction
Name 3 other components of joints
Ligaments
Cartilage
Tendons
What does a ligament do?
Join bone to bone and stabilise joints, preventing dislocation
What does cartilage do?
Protects the bones from rubbing, acts as a shock absorber
