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23 terms

Anatomy and Physiology - Lesson 7

First Class Kitsap County Life in the Blood
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Circulatory System
The system that carries blood throughout your system
Arteries
Vessels that carry blood AWAY from your heart
Veins
Vessels that RETURN blood to your heart
Arterioles
Vessels that branch out from the arteries becoming "little arteries"
Venules
"Little veins" that come together to form larger veins
Capillaries
The smallest blood vessels with very thin walls. They join the smallest arterioles to the smallest venules and enable the exchange of water, oxygen, carbon dioxide between blood and surrounding tissues.
Erythrocytes
Another name for red blood cells.
Leucocytes
Another name for white blood cells
Phagocytes
Special white blood cells that eat dangerous or worn out cells.
Plasma
The liquid part of your blood, made up of 90% water
Red blood cells
These turn your blood red and make up 40% of the solids in a drop of blood. They are your body's main way of delivering oxygen to your body cells.
Platelets
Fragments of cells that are carried in your blood. They aid in the blood clotting process
Hormones
chemical messengers that travel the body via the bloodstream in order to control and coordinate complex processes, such as growth and metabolism
White blood cells
Lymphatic and immune system cells that travel throughout your body, attempting to destroy harmful bacteria and viruses
Blood clotting process
The sealing of cuts. This process keeps your blood from leaking out and helps to prevent the invasion of harmful bacteria
Antigens
Special markers that are attached to your cells. The ones attached to your red blood cells determine the type of blood you have
Anemia
A condition that results from not having enough red blood cells
Stem cells
Cells that have the ability to become any kind of cell they need to be
Oxygenated blood
Blood that is carrying oxygen to the cells
Deoxygenated blood
Blood that has given up some of its oxygen and picked up carbon dioxide
Blood transfusion
the transferring of blood from one person to another
Universal donor blood
The blood type that has neither A nor B antigens and can be given to nearly any person
Universal recipients
People who can receive all blood types because they have both A and B antigens on their red blood cells