Double Circulation
Double circulation is a specialized cardiovascular system found in mammals and birds, including humans, that involves the circulation of blood through two separate circuits. This unique system allows for the efficient delivery of oxygen and nutrients to the body’s tissues while maintaining a high level of oxygenation in the blood.
Blood Flow
Systemic and Pulmonary Circulation
Body Fluids and Circulation
Class 11 Notes Body Fluids and Circulation: Body liquids are the mode of transport of supplements, oxygen, and other significant substances in the body. They supply the cells with oxygen and nutrients and remove waste products, which are then excreted in the urine. As body temperature rises, blood flow to the skin increases, allowing heat from sweat to dissipate, thus maintaining a constant body temperature. There are several types of body fluids, including blood, lymph, cerebrospinal fluid, interstitial fluid, and various secretions. The most prominent among them is blood, which carries oxygen, nutrients, hormones, and immune cells to different tissues and organs. Blood also transports waste products, such as carbon dioxide and metabolic byproducts, to the appropriate organs for elimination.
Mainly, our body has two types of fluids-
- Intracellular Fluid– The fluid which is present inside the cell.
- Extracellular Fluid– The fluid which is present outside the cell is known as extracellular fluid. Example ( blood, lymph, etc)
The circulatory system comprises two main components: the cardiovascular system and the lymphatic system. The cardiovascular system consists of the heart, blood vessels, and blood. The heart pumps oxygenated blood from the lungs to the rest of the body and returns deoxygenated blood back to the lungs for oxygenation. Arteries carry oxygenated blood away from the heart, while veins transport deoxygenated blood toward the heart.