| A | B |
|---|
| skeletal muscles | voluntary, attached to bone |
| smooth muscles | involuntary; control movement |
| cardiac muscles | involuntary; controls heart |
| capillaries | very small vessels; oxygen and carbon dioxide |
| arteries | carry blood/oxygen/nutrients through body |
| veins | carry waste products back to heart |
| diaphragm | muscle -aides in breathing |
| bronchi | tubes that move air from trachea to lungs |
| trachea | windpipe |
| liver | secondary organ, produces bile to break up fat particles |
| gallbladder | secondary organ - stores bile produced by liver |
| pancreas | secondary organ - produces digestive juices |
| kidneys | get rid of urea - excess water |
| ureters | connect kidneys to bladder |
| bladder | muscular organ - stores urine |
| uretha | tube urine passes through |
