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blood vessels of the feline neck and cranial thorax (preserved specimen) |
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cat jugular vein |
There are 2 main parts to the blood vascular system.
 | The systemic circulation, which carries bright
red, freshly oxygenated blood to the body's cells |
| The pulmonary circulation, which carries dark, high carbon dioxide blood to the lungs for oxygenation. |
Blood vessels are a complex series of branching tubes that carry blood throughout the body.
The heart is a multichambered pump that supplies blood to the systemic and pulmonary circulations.
The fetal blood vascular system has some significant structural differences from that of an animal after birth.
