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Body Fluids & Circulation, Excretory Products & their Elimination Video Lecture | Crash Course for NEET

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1. What are the different types of body fluids involved in circulation?
Ans. The different types of body fluids involved in circulation are blood and lymph. Blood is a fluid connective tissue that carries nutrients, oxygen, hormones, and waste products throughout the body. Lymph is a clear fluid that circulates through the lymphatic system, helping to remove toxins and waste materials from the body.
2. How does the circulatory system help in maintaining homeostasis?
Ans. The circulatory system plays a crucial role in maintaining homeostasis by transporting essential substances, such as oxygen, nutrients, and hormones, to different parts of the body. It also helps in removing waste products, such as carbon dioxide and metabolic waste, from the body. Additionally, the circulatory system regulates body temperature and helps in fighting off infections through the immune response.
3. What are the major excretory products in the human body?
Ans. The major excretory products in the human body are urine, carbon dioxide, and feces. Urine is produced by the kidneys and contains metabolic waste products, excess water, and electrolytes. Carbon dioxide is a waste product of cellular respiration and is eliminated through the lungs during breathing. Feces are formed in the large intestine and consist of undigested food, bacteria, and other waste materials.
4. How does the urinary system eliminate waste products from the body?
Ans. The urinary system eliminates waste products from the body through the process of urine formation and excretion. The kidneys filter waste products, excess water, and electrolytes from the blood to form urine. Urine is then transported from the kidneys to the urinary bladder through the ureters. When the bladder is full, urine is eliminated from the body through the urethra during urination.
5. What are the main functions of the lymphatic system in the body?
Ans. The main functions of the lymphatic system in the body include the removal of excess fluid, waste materials, and toxins from the tissues. It also plays a vital role in the immune response by producing and transporting lymphocytes (white blood cells) that help in fighting off infections. Additionally, the lymphatic system absorbs and transports dietary fats from the small intestine to the bloodstream.
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