Connect And Learnsmart Labs Access Card For Biology: Concepts And Investigations
3rd Edition
ISBN: 9781259335976
Author: Marielle Hoefnagels
Publisher: McGraw-Hill Education
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Chapter 30, Problem 13WIO
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
In human clinical practice, blood pressure is measured on the arm, listening for pulse sounds in the pocket of the elbow. From this location, we can measure blood pressure fairly precisely whether the person is sitting, standing, or laying down as long as the arm is kept at the person’s side. If the arm is moved, or if we choose the leg to measure blood pressure instead, the position of the person (sitting, laying down, standing) will dramatically change the blood pressure reading that we measure. Given what you understand about blood pressure, explain why we can accurately measure pressure in any position if the arm is kept at the side, but it changes so much if we were to measure from the legs.
Which of the following is the correct sequence of blood flow through pulmonary circulation?
Group of answer choices
Right atrium → right ventricle → pulmonary arteries → pulmonary capillaries (in lungs) → pulmonary veins → left atrium
Left atrium → left ventricle → pulmonary arteries → pulmonary capillaries (in lungs) → pulmonary veins → right atrium
Right atrium → right ventricle → pulmonary capillaries (in lungs) → pulmonary arteries → pulmonary veins → left atrium
Left atrium → left ventricle → pulmonary capillaries (in lungs) → pulmonary arteries → pulmonary veins → right atrium
Left atrium → left ventricle → pulmonary veins → pulmonary arteries → pulmonary capillaries (in lungs) → right atrium
Chapter 30 Solutions
Connect And Learnsmart Labs Access Card For 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. 30.3 - Prob. 1MCCh. 30.3 - Prob. 2MCCh. 30.4 - Trace the pathway of an O2 molecule from the lungs...Ch. 30.4 - Why is the heart sometimes called two hearts that...Ch. 30.4 - Prob. 3MC
Ch. 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 - Prob. 3MCQCh. 30 - Which of the following blood transfusions would be...Ch. 30 - Prob. 5MCQCh. 30 - Prob. 6MCQCh. 30 - Prob. 7MCQCh. 30 - Prob. 8MCQCh. 30 - Prob. 9MCQCh. 30 - How are open and closed circulatory systems...Ch. 30 - Prob. 2WIOCh. 30 - Prob. 3WIOCh. 30 - Prob. 4WIOCh. 30 - Prob. 5WIOCh. 30 - Prob. 6WIOCh. 30 - Describe the events that occur during one cardiac...Ch. 30 - Prob. 8WIOCh. 30 - Prob. 9WIOCh. 30 - Prob. 10WIOCh. 30 - Prob. 11WIOCh. 30 - Prob. 12WIOCh. 30 - The carotid artery extends from the heart to the...Ch. 30 - Prob. 14WIOCh. 30 - Prob. 15WIOCh. 30 - Name three ways that the circulatory system helps...Ch. 30 - Prob. 17WIOCh. 30 - Prob. 18WIOCh. 30 - Prob. 1PITCh. 30 - Prob. 2PITCh. 30 - Prob. 3PIT
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