Human heart represents:
- The human heart represents double circulation, which refers to the circulation of blood through two different pathways in the body.
- These two pathways are pulmonary circulation and systemic circulation.
- Pulmonary circulation is the circulation of blood between the heart and the lungs. It carries deoxygenated blood from the heart to the lungs to pick up oxygen and release carbon dioxide.
- Systemic circulation is the circulation of blood between the heart and the rest of the body. It carries oxygenated blood from the heart to all the organs and tissues in the body, delivering oxygen and nutrients while removing waste products.
- The heart plays a crucial role in maintaining this double circulation by pumping blood through both the pulmonary and systemic circuits.
- The heart consists of four chambers: two atria and two ventricles. The atria receive blood, and the ventricles pump blood out of the heart.
- The atria receive deoxygenated blood from the body and oxygenated blood from the lungs, while the ventricles pump deoxygenated blood to the lungs and oxygenated blood to the body.
- The heart's muscular walls contract and relax rhythmically, allowing for the continuous flow of blood and maintaining double circulation.
- This double circulation is essential for the efficient exchange of gases and nutrients throughout the body, ensuring the proper functioning of organs and tissues.