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GEN BIO (Cirulatory System).
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GEN BIO (Cirulatory System).
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GEN BIO (Cirulatory System)Circulatory system
it helps an organism to transport nutrients, gases, and waste materials - all of which are
necessary to life
Hydra
these are animals that have no circulatory system
Diffusion
hydra uses this process to digest food and transport nutrients to all its cells
1. Open Circulatory System
2. Closed Circulatory System
two types of circulatory system
open cirulatory system
it is common to mollusk and arthropods
it pump blood into a hemocoel with the blood diffusing back to the circulatory system between
cells
ex: snails, grasshoppers, lobsters, insects
closed circulatory system
blood is pumped by a heart through vessels, and does not normally fill body cavities
ex: fish, amphibians, reptile, mammals or bird
heart
blood vessels
blood
3 major parts of a Human Circulatory System
heart
pump blood and oxygen around the body and deliver waste products (carbon dioxide) back to
the lungs to be removed
, right atrium
a deoxygenated (low O2) blood from the body enters. this blood is under low pressure
right ventricle
blood passes which contracts to pump blood
oxygenated blood contracts to the lungs
left atrium
oxygenated blood (high in O2) from the lungs enters. this blood is still under low pressure.
left ventricle
oxygenated blood enters which contracts very hard to push blood into the aorta (artery). It's
structure is very thick and generates a high pressure to pump blood around the whole body
blood vessels
these are channels that carry blood throughout the body
it transports materials such as oxygen and nutrients to the different parts of the body
it also transport waste materials such as carbon dioxide broted the lungs and other metabolistic
ways with your brought to the kidneys
arteries
veins
capillaries
types of blood vessels
arteries
thick and elastic with connective tissues smooth muscles and endothelium
it carry blood from the heart to different organs of the body (Away)
veins
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