Topic 1.2.5 Flashcards
What are the 3 functions of the skeleton?
Protection, Movement and Support
What are the 2 different synovial joints?
Hinge and Ball and Socket
What are the 2 different hinge joints?
Knee and Elbow
What are the 2 different ball and socket joints?
Shoulder and Hip
What are the 2 ranges of movement at a hinge joint?
Flexion and Extension
What are the 5 ranges of movement at a ball and socket joint?
Flexion, Extension, Adduction, Abduction and Rotation
What is extension?
The term given when the angle at the joint increases.
What is flexion?
The term given when the angle at the joint decreases.
What is abduction?
The movement of the limb away from the midline of the body.
What is adduction?
The movement of a limb towards the midline of the body.
What is rotation?
When the bone at a joint moves around its own axis.
What is weight bearing activity?
Activities that force your body to work against gravity. For example, walking, running and tennis.
What is the benefit of weight bearing activities?
Weight bearing activities increase bone density; this helps to reduce the risk of osteoporosis as a person gets older.
What are the 2 long term effects of exercise on the skeletal system?
Increased bone density and increased strength of ligaments and tendons.
What are the 3 benefits of increased bone density?
Reduce the chance of osteoporosis, gives better posture and reduces the chance of fractures.
