Anatomy Flashcards
(23 cards)
Support
Rigid bone help keep us upright and the rest of our body in place
Protection of vital organs
Flat bones enclose and protect vital organs
E.g. Cranium - brain
Sternum - heart
Ribcage - lungs
Movement
In one provide anchor points for muscles bones work as levers to allow movement
Structural shape
Bones give us our general shape such as height and build
Blood cell production
The inner marrow of long bones and rubs produce red and white blood cells
Storage of minerals
Bones store calcium and phosphorus
The skeleton
Provides framework for muscles to produce movement
Tendons
Kit provides a point of attachment for muscles . When muscles move they pull bones to create movement
Joints
Movements happen at joints, different types of joint allow different types of movement
E.g. Hinge
E.g. Ball and socket
Flexion
Movement where the angle between bones decreases
Extension
The movement where the angle between the bones increases
Plantar flexion - ankles
Action that describes pointing of the toes
Doris flexion
Is the opposite of plantar
Abduction
When a limb moves away from the body
Adduction
The movement of limbs coming back towards the body
Rotation
The action of moving a limb along its axis
Bursae
A sac filled with liquid floating inside the joint to reduce friction between tendon and bone
Cartilage
A tough but flexible tissue that acts as a buffer between bones preventing bones rubbing together and causing friction
Synovial fluid
A clear and slippery liquid that lubricates the joint and stops the bones rubbing together
Ligament
Bands of elastic fibres that touch phone to bowling keeping the joint stable by restricting movement
Synovial membrane
The lining inside the joint capsule that secretes (releases) synovial fluid
Joint capsule
Tissue that the stops the synovial fluid from escaping and encloses supports and holds bones together
Tendons
Very strong non elastic cords that join muscle to bones
