The Skeletal Systm Flashcards
Define long bones
Long straight bones that allow gross movements e.g. femur, humerus
Define short bones
Small bones that allow fine controlled movements e.g carplas
Define flat bones
Large flat bones that usually protect vital organs e,g, cranium , ribs
Define irregular bones
Specifically shaped bones designed to protect parts of the body e.g. virtibrae
Name the 6 functions of the skeletal system
- Movement
- Mineral storage
- Protection
- Production of red blood cells
- support
- Shape
How is movement created
When muscles contract they put on tendons which are attached to bones. this create movement
Define joint
Place where 2 or more bones meet
Define synovial joint
Its The most common type of joint which are specifically designed to allow movement and prevent injury
What is synovial fluid used for
It lubricates the joint to reduce friction when moving
Define bursae
Fluid filled bag that reduces friction
Define synovial membrane
Lining of the joint that produces synovial fluid
What is cartilage used for
It protects the end of bones and absorbs shock which therefore reduces friction
What are ligaments used for
Ligaments attach bone to bone to help stabilise joints
What do tendons attach too
Tendons attach muscle to bone
Define hinge joints
Joints that allow body parts to achieve flexion and extension e.g. knee ankle elbow
