How does gas exchange occur in our body?
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
What body systems are involved in gas exchange?
Gas exchange between tissues and the blood is an essential function of the circulatory system. In humans, other mammals, and birds, blood absorbs oxygen and releases carbon dioxide in the lungs. Thus the circulatory and respiratory system, whose function is to obtain oxygen and discharge carbon dioxide, work in tandem.
What is the main function of the blood in circulatory system?
Blood Provides the Body’s Cells with Oxygen and Removes Carbon Dioxide. Blood absorbs oxygen from air in the lungs. It transports the oxygen to cells throughout the body, and it removes waste carbon dioxide from the cells.
How does blood circulate in our body?
Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body’s tissues through the aorta.
What are the six different blood products?
- Whole Blood. Whole blood contains red cells, white cells, and platelets (~45% of volume) suspended in blood plasma (~55% of volume).
- Red Cells. Red blood cells (RBCs), or erythrocytes, give blood its distinctive color.
- White Cells & Granulocytes.
What are the 3 components of the blood?
Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets.
In which part the blood is broken down?
Old or damaged red blood cells are broken down in the liver and spleen, and new ones are produced in the bone marrow.
Why is blood of such vital importance to life?
Blood is essential to life. Blood circulates through our body and delivers essential substances like oxygen and nutrients to the body’s cells. It also transports metabolic waste products away from those same cells.
What part of the blood fights infection?
The main job of white blood cells, or leukocytes, is to fight infection. There are several types of white blood cells and each has its own role in fighting bacterial, viral, fungal, and parasitic infections.
Which fruit will increase white blood cells?
Citrus fruits Vitamin C is thought to increase the production of white blood cells, which are key to fighting infections. Almost all citrus fruits are high in vitamin C. With such a variety to choose from, it’s easy to add a squeeze of this vitamin to any meal.
What medicine increases white blood cells?
Drugs that may increase WBC counts include epinephrine, allopurinol, aspirin, chloroform, heparin, quinine, corticosteroids, and triamterene.