Biology: Concepts and Investigations
5th Edition
ISBN: 9781260542202
Author: Marielle Hoefnagels
Publisher: Mcgraw-hill Higher Education (us)
expand_more
expand_more
format_list_bulleted
Textbook Question
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.]
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
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
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
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.
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
Additional Science Textbook Solutions
Find more solutions based on key concepts
Sea turtles have disappeared from many regions, and one way of trying to save them is to reintroduce them to ar...
Marine Biology (Botany, Zoology, Ecology and Evolution)
Why are mutants used as test organisms in the Ames test?
Laboratory Experiments in Microbiology (11th Edition)
WHAT IF? As a cell begins the process of dividing, its chromosomes become shorter, thicker, and individually vi...
Campbell Biology in Focus (2nd Edition)
CAUTION How can evolutionary fitness be estimated? a. Document how long individuals survive. b. Count the numbe...
Biological Science (6th Edition)
6. How can you use the features found in each chapter?
Human Anatomy & Physiology
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is correct regarding the flow of blood in reference to the left side of the heart? a. Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, through the aortic semilunar valve, and then into the aortic arch b. Blood flows from the left atrium, through the aortic semilunar valve, into the left ventricle, through the bicuspid valve, and then into the aortic arch 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 systemarrow_forwardA heartbeat starts when autorhythmic cells in the 1 [ Select ] (located in the right atrium) create an action potential (electric signal). From there, the signal passes along the internodal pathway to the 2 [ Select] causing the atria to contract. After a slight pause, the signal travels to the 3 [ Select ] , which divides into left and right bundle branches and carries the signal down through the 4 [ Select ] to the apex of the heart. At that point, specialized 5 [ Select ] carry the signal to individual cardiac muscle cells and the 6 [ Select ] contract.arrow_forwardAll of the following are true except A. Pause is defined as heartbeats per minute B. The carotid pulse is felt at the angle of the mandible C. The femoral pulse is felt in the groin D. The radial pulse is felt at the pinky side of the wristarrow_forward
- You have a young woman on your ward who is awaiting heart surgery. She is keen to know about the structure and function of the heart and asks you to explain the flow of blood through the heart from start to finish. She wants to hear anatomical names and learn about physiological processes ejecting blood from her heart, your response will help keep her distracted from thinking about her upcoming operation. a. Describe the flow of blood through the heart, naming each of the vessels bringing and taking blood to and from the heart. Include chambers of the heart and name structures in the correct sequence along the blood's pathway through the heart - begin with blood returning to the heart from the body and end with blood being ejected into the systemic circulation. Include the names of the valves and identify which valves are open and closed during each cardiac cycle. Describe, using terms like diastole and systole, the changes in ventricular pressure during one cardiac cycle and…arrow_forwardThe role of the bundle of his, bundle branches, and purkinje fibers is to Help conduct the electrical pulse (action potential) to the top of the heart first before allowing the contraction to spread to the atria. Help conduct the electrical pulse (action potential) to the whole ventricle. Help conduct the electrical pulse (action potential) to the bottom of the heart first to allow it to spread from the bottom to the top of the heart. To allow the electrical pulse (action potential) to pause for 0.1s before spreading to the ventricle.arrow_forwardFill in the table below by indicating the organ, region or vessel that the named vessel receives blood from, and the organ, region or vessel to which it delivers blood (see example for aorta and coronary arteries). If you’re doing it right, both columns will have the same answer. You will need to refer to the images in your textbook and lab models to do this. VESSELS OF THE THORACIC CAVITY Artery Blood goes to (organ/region) Blood comes from (organ/region) Vein Aorta entire systemic circuit entire systemic circuit vena cava inferior & superior coronary left & right myocardium coronary left & right Brachiocephalic Brachiocephalic subclavian left & right subclavian left & right Intercostals azygos (not pictured) Pulmonary Pulmonary VESSELS OF THE ABDOMINAL CAVITY Artery Blood goes to (organ/region) Blood comes from (organ/region) Vein celiac trunk…arrow_forward
- The heart’s internal pacemaker beats by: a. an internal implant that sends an electrical impulse through the heart b. the excitation of cardiac muscle cells at the sinoatrial node followed by the atrioventricular node c. the excitation of cardiac muscle cells at the atrioventricular node followed by the sinoatrial node d. the action of the sinusarrow_forwardDiastole and systole are terms that address the contracting and relaxing of the heart. Which of the following statements about diastolic and systolic blood pressure are true? Select all that apply. The diastolic blood pressure reading is the second number that is read and it's a measurement of the pressure of the arteries as the heart contracts and beats. The systolic blood pressure reading is the first number that is read and it's a measurement of the pressure of the arteries as the heart contracts and beats. The systolic blood pressure reading is the first number that is read and it's a measurement of the pressure in the arteries when the heart rests between beats. Systole refers to when the heart contracts and blood flows from atria into ventricles. The diastolic blood pressure reading is the second number that is read and it's a measurement of the pressure in the arteries when the heart rests between beats Diastole refers to when the heart contracts and the blood flows from the…arrow_forwardAll of the following mechanisms assist in returning venous blood to the heart except: a. an increase in heart rate b. pressure changes in the abdominal and thoracic cavities due to breathing c. contraction of skeletal muscles in the legs d. one-way valves located inside veinsarrow_forward
- Blood is pushed out of the heart through a large vessel, called the aorta. The aorta then divides into smaller and smaller blood vessels, eventually reaching vessels called capillaries. Capillaries are so small that oxygen and nutrients can diffuse across the vessel walls and into the tissues of the body, with CO2 and waste diffusing back into the blood. Let's say that the cross-sectional area of the aorta is 1 cm2 = 100 mm2. The blood pumps through the aorta at 100 mm/s but only through the capillaries at 1 mm/s. If each capillary has a cross-sectional area of 20 mm2, how many capillaries must there be in the body? Note: these numbers are not physiologically correct, but were chosen to make the math easier. The blood velocity through the aorta is closer to 300 mm/s. The capillaries have a total cross-sectional area of ~600,000 mm2 (6000 cm2), with a blood flow rate closer to 0.2 mm/s.arrow_forwardAs blood goes from the left ventricle through the arteries and veins of the human body, both its speed and pressure change. The arteries and arterioles can either constrict, reducing the area, or dilate, increasing the area, in response to certain conditions. Both of these changes can affect blood flow and blood pressure. An artery can also develop a permanent narrow area (stenosis) or a permanent wide area (aneurysm). Both of these changes can have significant health consequences. Suppose that in response to some stimulus a small blood vessel narrows to 90% of its original diameter. If there is no change in the pressure across the vessel, what is the ratio of the new volume flow rate to the original flow rate?A. 0.66 B. 0.73 C. 0.81 D. 0.90arrow_forwardThe carotid artery of an animal is partially constricted proximal to the carotid sinus during a study. Which of the following cardiovascular changes most likely occurs in response to the constriction? (My opinion is the question is referring to carotid clamping not carotid massage ( carotid massage is usually done on carotid sinus to rapidly lower heart rate)) A. Decreased heart rateB. Decreased systemic arterial pressure C. Decreased venous return to the startD. Increased number of impulses from the carotid sinus E. Increased total peripheral resistance.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageFundamentals of Sectional Anatomy: An Imaging App...BiologyISBN:9781133960867Author:Denise L. LazoPublisher:Cengage Learning
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Fundamentals of Sectional Anatomy: An Imaging App...
Biology
ISBN:9781133960867
Author:Denise L. Lazo
Publisher:Cengage Learning
Respiratory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=v_j-LD2YEqg;License: Standard youtube license