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Circulatory System - Biology, General Science Video Lecture | General Awareness & Knowledge - Bank Exams

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FAQs on Circulatory System - Biology, General Science Video Lecture - General Awareness & Knowledge - Bank Exams

1. What is the circulatory system?
Ans. The circulatory system is a complex network of blood vessels, the heart, and blood. It transports oxygen, nutrients, hormones, and other essential substances throughout the body, while also removing waste products.
2. What are the main components of the circulatory system?
Ans. The main components of the circulatory system are the heart, blood vessels (arteries, veins, and capillaries), and blood. The heart pumps oxygenated blood to the body's organs and tissues through arteries, and the deoxygenated blood returns to the heart through veins. Capillaries are tiny blood vessels that connect arteries and veins, allowing for the exchange of nutrients and waste products.
3. How does the circulatory system work?
Ans. The circulatory system works by the continuous circulation of blood throughout the body. The heart contracts, pumping oxygenated blood to the body's organs and tissues through arteries. As the blood reaches the capillaries, oxygen and nutrients are exchanged with the surrounding cells, and waste products are collected. The deoxygenated blood then returns to the heart through veins, where it is pumped to the lungs to receive fresh oxygen, starting the cycle again.
4. What is the role of the heart in the circulatory system?
Ans. The heart is the central organ of the circulatory system. It acts as a powerful pump that propels blood throughout the body. The heart consists of four chambers: two atria and two ventricles. The atria receive blood returning to the heart, while the ventricles pump the blood out to the body. Through its rhythmic contractions, the heart maintains the circulation of blood, ensuring that oxygen and nutrients reach the body's cells.
5. What are some common circulatory system disorders?
Ans. Some common circulatory system disorders include hypertension (high blood pressure), coronary artery disease, heart failure, stroke, and peripheral artery disease. These conditions can disrupt the normal functioning of the circulatory system, leading to inadequate blood flow, oxygen deprivation, and potential damage to organs and tissues. It is important to maintain a healthy lifestyle and seek medical attention if any symptoms or risk factors are present.
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