Musculo-Skeletal System Flashcards
Support
Bones keep us upright and hold muscles and organs in place
Protection
Some bones surround and protect vital organs from damage
Long bones
Bones of the legs and arms. Support the weight of the body and help with gross movements
Movement
Muscles contract to pull the bones of the skeleton
Joint
Place where two or more bones meet
Synovial joint
Type of joint commonly found in the limbs; contains synovial membrane which produces synovial fluid
Cartilage
Covers ends of bones providing smooth surface with no friction
Synovial fluid
Produced by synovial membrane to lubricate joint
Capsule
Tough fibrous tissue surrounding synovial joints; usually supported by ligaments
Ligament
Joins bone to bone
Dislocation
When the bones of a joint separate from their normal position
Bursae
Fluid filled bag that helps reduce friction in joint
Tendon
Attaches muscle to bone
Red blood cells
Carry oxygen to muscles
White blood cells
Fight infections
Hinge joint
Joint that allows flexion and extension
Flexion
Movement where the angle between bones is reduced
Extension
Movement where the angle between bones is increased
Ball and socket joint
Joint that allows flexion, extension, abduction, adduction and rotation
Abduction
Movement away from the midline of the body
Adduction
Movement towards the midline of the body
Rotation
Turning a limb along it’s long axis
Plantar flexion
Movement at the ankle where the toes point to the ground
Dorsiflexion
Movement at the ankle where toes are pulled up towards the knee
