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Cardiovascular 7
Cardiovascular System 7th Grade Science
Question | Answer |
---|---|
What are the parts of the cardiovascular system? | blood blood vessels heart |
What are the 4 components of blood? | red blood cells (RBCs) white blood cells (WBCs) plasma platelets |
Fluid that carries gases, nutrients, and wastes through the body -made up of platelets, plasma, WBCs, and RBCs | blood |
a component of blood; mixture of water, minerals, nutrients, sugars, proteins, and other substances | plasma |
a component of blood; tiny pieces of larger cells found in bone marrow, only last 5-10 days, help blood to clot | platelets |
keep body healthy by fighting pathogens (bacteria and viruses), form antibodies (chemicals that identify pathogens) | white blood cells (WBCs) |
disc-shaped cells that do not have a nucleus, bring oxygen to every cell in body | red blood cells (RBCs) |
oxygen-carrying protein found in red blood cells | hemoglobin |
blood travels through the whole circulatory system through these | blood vessels |
type of blood vessels that carry blood AWAY from the heart | arteries |
tiny blood vessels that allow exchanges between body cells and blood | capillaries |
type of blood vessels that carries blood back to heart | veins |