A gland found just below the neck of children; helps immature immune system make white blood cells; disappears by teen years
Found in the neck; makes hormone thyroxine which controls the rate of metabolism (how rapidly food is burned)
Small dots of tissue inside thyroid; controls amount of calcium and bone thickness
Small pyramids on top of kidneys; hormones aid "fight or flight" reactions for emergencies
A pea-sized gland at the base of the brain; makes growth hormone and many other hormones which control other glands; also known as "master gland"
Tough bands that connect bones to each other
Bands that attach muscles to bones or other muscles
Clusters of sacs that make "oil" to lubricate/smooth movement in joints
In center of long bones; makes most red blood cells and some white
Yellow-ish fluid that carries and nourishes blood cells
Clear fluid in the plasma; passes through blood vessels to wash body cells; collects germs for later destruction
Found mostly near joints; white blood cells destroy germs collected by lymph; when ill becomes swollen with germs
White Blood Cells
Attack and swallow germs
Chemical defenders of the body
Outer skin layer
Dead layer at the surface of the epidermis; forms hair and nails
Inner skin layer; contains hair roots and sweat glands
Tube that carries food from mouth to stomach
Grinds and adds water to food
Most digestion and absorption of food happens in this 20 foot tube
Water needed during digestion is reabsorbed into body
Found where small and large intestines join; has no known job to humans
Rhythmic muscle contractions that squeeze food through the intestines
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