Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 30, Problem 11WIO
The carotid artery extends from the heart to the head. Some of the body’s blood pressure receptors are located in the carotid sinus, where the carotid artery passes through the neck. If you press lightly on the carotid sinus, what do you predict should happen to your heart rate? What if you press lightly on a spot just below the carotid sinus? [Hint: Figure 30. 15 may help you answer this question.]
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The aorta, the largest artery in the body (in diameter), carries oxygen-rich blood away from the heart as it begins the systemic blood flow circuit throughout the body. Owing to the fact that the aorta connects directly to the heart, the blood pressure (BP) inside the aorta is very high. As blood travels further from the heart, the BP gradually decreases. For example, the BP in the aorta is higher than in the brachial artery; the BP in the brachial artery is greater than in the antecubital artery; the BP in the antecubital artery is greater than in the radial artery. Based on the understanding that walls of the aorta are subjected to extreme outward pressure, hypothesize the order of specific tissue types one would expect to find in the aorta (from deep to superficial) and explain your rationale
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c. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, into the aortic arch, through the aortic semilunar valve, and then into systemic arterial system
Chapter 30 Solutions
Biology: Concepts and Investigations
Ch. 30.1 - What are the components of a circulatory system?Ch. 30.1 - Distinguish between open and closed circulatory...Ch. 30.1 - Describe the circulatory systems of fishes,...Ch. 30.2 - What are the components of blood?Ch. 30.2 - Prob. 2MCCh. 30.2 - Prob. 3MCCh. 30.3 - Prob. 1MCCh. 30.3 - Prob. 2MCCh. 30.4 - Why is the heart sometimes called two hearts that...Ch. 30.4 - Prob. 2MC
Ch. 30.4 - Prob. 3MCCh. 30.4 - Prob. 4MCCh. 30.5 - Prob. 1MCCh. 30.5 - Prob. 2MCCh. 30.5 - Prob. 3MCCh. 30.6 - Prob. 1MCCh. 30.6 - Prob. 2MCCh. 30.6 - Prob. 3MCCh. 30.7 - Prob. 1MCCh. 30.7 - Prob. 2MCCh. 30 - What is the advantage of a four-chambered heart?...Ch. 30 - Prob. 2MCQCh. 30 - Which of the following blood transfusions would be...Ch. 30 - Prob. 4MCQCh. 30 - Prob. 5MCQCh. 30 - Prob. 6MCQCh. 30 - Prob. 7MCQCh. 30 - How are open and closed circulatory systems...Ch. 30 - Prob. 2WIOCh. 30 - Prob. 3WIOCh. 30 - Prob. 4WIOCh. 30 - Prob. 5WIOCh. 30 - Describe the events that occur during one cardiac...Ch. 30 - Make a chart that compares systemic arteries,...Ch. 30 - Prob. 8WIOCh. 30 - Prob. 9WIOCh. 30 - Prob. 10WIOCh. 30 - The carotid artery extends from the heart to the...Ch. 30 - Prob. 12WIOCh. 30 - Prob. 13WIOCh. 30 - Name three ways that the circulatory system helps...Ch. 30 - Prob. 15WIOCh. 30 - Prob. 16WIOCh. 30 - Prob. 1PITCh. 30 - Prob. 2PITCh. 30 - Prob. 3PIT
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