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Understanding Heartbeat and Pulse Rate Video Lecture | Science Class 7 (Old NCERT)
FAQs on Understanding Heartbeat and Pulse Rate Video Lecture - Science Class 7 (Old NCERT)
| 1. What is a heartbeat and pulse rate? |  |
Ans. A heartbeat refers to the rhythmic contraction and relaxation of the heart muscles that pump blood throughout the body. Pulse rate, on the other hand, is the number of times the heart beats per minute, which can be felt as a throbbing sensation in the arteries.
| 2. How is the pulse rate measured? | |
Ans. The pulse rate can be measured by placing two fingers (usually the index and middle finger) on the wrist or neck, where an artery is close to the surface. Count the number of beats felt within a specific time frame, usually one minute, to determine the pulse rate.
| 3. What factors can affect the pulse rate? | |
Ans. Several factors can influence the pulse rate, including physical activity, emotions, body temperature, medications, caffeine or nicotine intake, age, and overall health. For example, during exercise, the pulse rate tends to increase as the body requires more oxygen to fuel the muscles.
| 4. What is considered a normal pulse rate for a healthy individual? | |
Ans. A normal pulse rate for a healthy individual typically ranges from 60 to 100 beats per minute. However, it's important to note that factors such as age, fitness level, and overall health can affect what is considered normal for each person.
| 5. Why is it important to monitor heartbeat and pulse rate? | |
Ans. Monitoring the heartbeat and pulse rate is crucial for assessing cardiovascular health. Abnormalities in the pulse rate can indicate underlying medical conditions, such as arrhythmias or heart diseases. Regular monitoring can help detect potential issues early on and allow for timely medical intervention.
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Video Description: Understanding Heartbeat and Pulse Rate for Class 7 2025 is part of Science Class 7 (Old NCERT) preparation.
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