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Circulatory and Respiratory Systems

Across
(Exhalation) when the muscles relax after inspiration.
Collapsed lung
Blood cell that is 40-45 percent of the blood's volume.
An inherited protein found on the surface of red blood cells.
Carries oxygenated blood to the tissues.
Node that gives the 1st thump of the heart.
The outer muscular tissue of the heart.
(Inhalation) when oxygen is pulled into the mouth or nose.
What arteries and veins break off into.
Upper lobe of both the right and left lung.
Carries oxygenated blood to the tissues (rest of the body).
Cartilage that regulates where air goes and where food and water go.
The lower lobe of both the right and left lung.
Down
Substance that lubricates the cavity to allow the sliding of the inner and outer layer.
A substance that bonds with oxygen to release it to different parts of the body.
The thin space between the inner and outer layer of the lungs.
Receives fresh blood from the lungs.
Fragments of cells that help with the blood clotting process.
Muscle that contracts during inspiration.
White blood cell that aids in immediate problems, and have a short life span.
Where the exchange of oxygen and carbon dioxide happens.
carry oxygen poor blood (not blue) back to the heart.