Heart Rate Physiology
A Grade 11 science worksheet focusing on the physiology of heart rate, including factors affecting it and its measurement.
Includes
Standards
Topics
Heart Rate Physiology
Name:
Date:
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Read each question carefully and answer to the best of your knowledge. For multiple choice questions, select the best option. For short answer questions, provide concise and accurate responses.
1. Which part of the brain is primarily responsible for regulating heart rate?
Cerebellum
Medulla oblongata
Cerebrum
Hypothalamus
2. What is the average resting heart rate for a healthy adult?
40-60 bpm
60-100 bpm
100-120 bpm
120-140 bpm
1. The nervous system generally slows down heart rate, while the nervous system speeds it up.
2. Hormones like and can significantly influence heart rate.
1. Briefly explain how exercise affects heart rate and why this occurs.
2. Describe two methods for measuring heart rate.
1. A higher resting heart rate always indicates better cardiovascular fitness.
True
False
2. The SA node is known as the pacemaker of the heart.
True
False
Identify the labeled parts of the human heart in the diagram below.
A.
B.
C.
D.