Skeletal System Flashcards
What is a joint?
A connection point between two bones where movement can occur
What are the functions if the skeletal system?
Support Movement Protection Blood cell production Shape
What is abduction?
The movement of a bone or limb away from the body
What is adduction?
The movement of a limb or bone towards the body
What is flexion?
When the angles between two bones is decreased
What is extension?
When the angle between two bones increases
What is a ball and socket joint?
It’s at joint where adduction and abduction can take place such as at the shoulder(scapula,clavicle,humerus) or the hips(femur and ilium)
What is a hinge joint?
A joint where flexion and extension takes place such as at the elbow(humerus,radius,ulna) it at the knee( femur,patella,tibia)
What are synovial joints?
Freely moveable joints, most joints fall into this category
What joint is a Slightly moveable joint?
The vertebrae in the spine
Name an immovable joint
The bones that make up the skull
What is synovial?
Where bony surfaces are covered by cartilage, connected by ligaments with a joint cavity full of synovial fluid.
What is articulation?
A moveable joint between inflexible parts of the body.
What is a saddle joint?
The thumbs
What is a pivot joint?
The wrist and ankle
