Definition of blood and its components, along with their functions.
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ChatGPT
23 hours ago
Blood is a specialized bodily fluid that circulates through the body, delivering essential nutrients and oxygen to cells and removing waste products. It also plays a crucial role in maintaining the body's overall health and functioning.
The main components of blood include red blood cells, white blood cells, platelets, and plasma.
1. Red blood cells (erythrocytes): Red blood cells are responsible for carrying oxygen from the lungs to the rest of the body and transporting carbon dioxide back to the lungs to be exhaled. They contain hemoglobin, a protein that binds to oxygen and gives blood its red color.
2. White blood cells (leukocytes): White blood cells are a key part of the immune system, helping to defend the body against infections and foreign invaders. They can identify and destroy pathogens such as bacteria, viruses, and fungi.
3. Platelets (thrombocytes): Platelets are small cell fragments that play a crucial role in blood clotting. When a blood vessel is damaged, platelets rush to the site to form a plug and stop the bleeding.
4. Plasma: Plasma is the liquid component of blood, making up about 55% of its total volume. It consists mainly of water, electrolytes, proteins, hormones, and waste products. Plasma helps to transport nutrients, hormones, and waste products throughout the body.
Overall, blood performs several important functions in the body, including transporting oxygen and nutrients, removing waste products, regulating body temperature, and defending against infections. It is essential for maintaining homeostasis and keeping the body healthy and functioning properly.
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Google Gemini AI
23 hours ago
Definition of Blood:
Blood is a vital fluid that circulates throughout the body, transporting oxygen, nutrients, hormones, and other essential substances to cells and tissues while removing waste products.
Components of Blood and their Functions:
Plasma (55%):
- Liquid portion of blood that contains: - Water - Electrolytes (sodium, potassium, chloride) - Proteins (albumin, globulins, fibrinogen) - Albumin maintains fluid balance and transports substances. - Globulins are part of the immune system. - Fibrinogen is essential for blood clotting.
Red Blood Cells (45%):
- Also known as erythrocytes. - Contain hemoglobin, which binds to oxygen for transport to cells. - Carry oxygen from the lungs to all tissues of the body.
White Blood Cells (1%):
- Also known as leukocytes. - Specialized cells that protect the body against infection. - Include: - Neutrophils: Destroy bacteria. - Lymphocytes: Involved in immune responses. - Eosinophils: Fight allergic reactions. - Basophils: Release histamine, a chemical involved in inflammation. - Monocytes: Develop into macrophages, which engulf foreign particles.
Platelets (1%):
- Small, cell-like fragments. - Play a crucial role in blood clotting to prevent excessive bleeding.
Functions of Blood:
- Transport: - Oxygen and nutrients to cells - Waste products away from cells - Regulation: - Fluid balance - Body temperature - pH levels - Protection: - White blood cells fight infection - Platelets prevent bleeding - Plasma proteins transport antibodies - Hormone Regulation: - Carries hormones from glands to target cells - Communication: - Transports signals throughout the body