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The _________ system gets oxygen into your blood and excretes carbon dioxide from it.
Carbon dioxide is carried in the blood plasma back to the lungs to be ________.
In _________ respiration the cells break down glucose wihout oxygen to release energy.
Too much ______ acid in the muscles can cause cramp.
The _______ is a tube carrying air into and out of the lungs, also called the windpipe.
___________ is air moving into and out of the lungs.
_______ are small round pockets that are grouped with other _______ to for air sacs in the lungs.
_____ is a slimy substance found in the nose and trachea that traps dirt and microbes.
_____ are small hairs on the surface of some cells.
________ is a tube in the lungs that connects the windpipe to the air sacs.
_________ is a sheet of muscle under the lungs.
A fish gets oxygen by taking in water through its mouth & forcing it over its _____.
