1- Capillary bed of lungs (where gas exchange occurs)
2- Pulmonary veins
3- Left atrium
4- Left ventricle
5- Systemic arteries
6- Systemic veins
7- Right ventricle
8- Right atrium
9- Pulmonary arteries
Route of pulmonary and systemic circulation:
Pathway of deoxygenated blood: From tissue capillaries to right atrium via systemic veins, right atrium to right ventricle, right ventricle to lungs via pulmonary arteries.
Gaseous exchange takes place in lungs where deoxygenated blood becomes oxygenated.
Pathway of oxygenated blood: From lungs to left atrium via pulmonary veins, left atrium to left ventricle, left ventricle to tissue capillaries via systemic arteries.
To know more about circulatory system, refer:
https://brainly.com/question/19685691
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