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The Human Respiratory and Circulatory Systems

Across
The protein in red blood cells.
Blood rich in oxygen.
Tiny thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and cells and are located BETWEEN arteries and veins.
The part of the bone that produces blood cells.
Produced by white blood cells and released into the body and fight pathogens.
The large artery through which the blood leaves the heart.
Lower chamber of the heart
These blood cells aid in the process of coagulation (chemical mechanism which clots blood vessels).
Little sacks on the ends of the bronchioles where carbon dioxide is released and oxygen is absorbed.
The pale, yellowish liquid part of the blood. It makes up the majority of blood.
A sticky substance that lines the nasal cavity and traps particles, so they don't reach the lungs.
Down
The blood cells that make up about 1% of the body's blood cells - protects the body from pathogens and disease.
the process where chemicals in the blood and cells from an injured tissue transform proteins from the blood plasma into a web of thread-like proteins which seals off an injury to a blood vessel.
Small arteries that connect to the capillaries.
The veins take oxygenated blood back to the heart (from the lungs), so it can be pumped to the rest of the body.
The circulatory system is composed of the _____ and blood vessels.
The part of the circulatory system that transports the oxygen and nutrients.
The most important skeletal muscle when it comes to breathing.
Small veins that connect to the capillaries and carry de-oxygenated blood to a larger vein.
The scientific name for the body's "voice box".
The respiratory system's main organ.
The blood vessels that carry de-oxygenated blood BACK to the heart.
Upper chamber of the heart
The human heart has _____ chambers.