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human biology
health chapter 1
31
Science
7th Grade
02/27/2011

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Cards

Term
cell
Definition
base unit of the structure and function in a living thing
Term
tissue
Definition
group of similiar cells that perform the same function
Term
organ
Definition
structure that is composed of different kinds of tissues
Term
organ system
Definition
group of organs that work together to preform a major function.
Term
organism
Definition
a complete living thing
Term
homeostasis
Definition
the body's tendency to keep internal balance
Term
skeleton
Definition
inner framework made up of all the bones of the body
Term
bone
Definition
hard tissue made up of minerals and living cells
Term
cartilage
Definition
connective tissues that is more flexible then bone and protects the ends of bones
Term
periostreum
Definition
hard but living outer covering of a bone
Term
compact bone
Definition
hard dense bone tissue
Term
spongy bone
Definition
layer of bone tissue having many small spaces
Term
marrow
Definition
soft connective tissue that fills the internal spaces
Term
fracture
Definition
break in a bone
Term
osteoporosis
Definition
condition in which the body's become weak and brek easily
Term
scoliosis
Definition
sideways curvature of the spine
Term
joint
Definition
place in the body where two or more bones come together
Term
ligment
Definition
strong connective tissue that holds bones together in a movable joint
Term
function of joints
Definition
provide motion and flexiblity to the body
Term
arthritis
Definition
disease of the joints that makes movement painful
Term
sprain
Definition
injury in which the ligaments holding bones together are stretched to far and tear
Term
bone dislocation
Definition
end of a bone comes out of it's joint
Term
muscle
Definition
body tissue that contracts making body move
Term
muscle strain
Definition
tear or pull in a muscle or tendon
Term
tendon
Definition
strong connective tissue attaching muscle to bone
Term
skeletal muscles, voluntary muscles
Definition
muscles that are attached to the bone of the skeleton
Term
smooth muscles, involuntary muscles
Definition
muscles found inside many internal organs of the body
Term
cardiac muscle
Definition
muscle found only in the heart
Term
skin, epithelial tissue
Definition
body tissue that covers all surfaces of the body in and out
Term
epidermis layer
Definition
outer layer of skin
Term
dermis layer
Definition
inner layer of the skin
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