science bones``and` skeletons
Terms
undefined, object
copy deck
- compact bone
- outer laayer, solid, tough
- spongy bone
- outer sides, light but strong, pores
- canal
- center, contains marrow
- red marrow
- blood formation
- yellow marrow
- storage site for fat
- membrane
- covers all bone but ends, thin ,tough, packed with nerves and blood vessels
- 5 major functions of skeleton
-
1) provides shape and support
2) enables you to move
3) protects your internal organs
4) produces blood cells (in long bones)
5) stores materials until the body needs them - vertebrae
- 26 bones that make your back bone
- what are some materials the bone stores
- calcium and phosphorus
- what happens when materials are needed
- they are reaalesed into the blood stream
- marrow
- soft tissue that fills the internal spaces in the bone
- cartilage
- connective tissue that is more flexible thay bone. helps to support body
- joint
- a place where to bones come together
- ball-and socket joint
- most movement, arms + hips
- pivot joint
- one bone rotates around the other , neck
- gliding joint
- 1 bone slides over the other, wrist + ankles
- hinge joint
-
foward and backward movement
elbow+ knee - immovable joints
- skull/ribs, connect bones and stablize them
- movable
- allowsd body to keep a wide range of movements
- __________ + ________ = healthy bones
- balanced diet + excersise
- osteoporosis
- a condition in which the body's bones become weak and break easily
- involuntary
- a muscle that is not under consious control
- voluntary muscle
- a muscle that is under concious control
- what are the three types of muscle tissue
- skeletal, smooth, and cardiac
- skeletal muscle
- a muscle that is attached to the bones of a skeleton
- tendon
- strong connective tissue that attqaches a muscle to a bone
- smooth muscles
- involuntary musclesfound inside many internal organs of the body
- cardiac muscle
- muscle tissue found only in the heart