Circulatory System Overview
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9 Terms
Function/purpose of system
Transporting gasses (like CO2), nutrients (like glucose) and waste into our cells and our body, regulating internal temperatures (homeostasis), and preventing blood loss from injury.
Simple animal (like sponges) circulatory system
They don’t have one. Cells are bathed in water so they can just rely on diffusing nutrients in and out.
Most invertebrates circulatory system
Most have an open circulatory system. Blood leaves the circulatory system and mixes with intestinal fluids but there are no dedicated blood vessels.
Vertebrates circulatory system
Closed circulatory system. They have dedicated blood vessels and blood travels in a loop.
4 chambers of the heart
2 atria (receiving chambers) 2 ventricles (pumping chambers)
Which side is oxygen-rich which is oxygen-poor
Right side has oxygen-poor blood, left side has oxygen-rich blood and the 2 sides are separated by the septum.
Explain double circulatory system
The right side of the heart collects de-oxygenated blood from the body, pumps it to the lungs, which oxygenates the blood, and then oxygenated blood goes to left side of the heart which then sends blood to the body.P
Pulmonary circulation
To and from the lungsS
Systematic circulation
To and from body cells.