A&P UNITY AND FUNCTION ACCESS
9th Edition
ISBN: 9781264893683
Author: SALADIN
Publisher: MCG
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Chapter 19, Problem 2TYC
Summary Introduction
Summary:
Massaging of chest at aorta increases the heartbeat rate by the simple baroreceptor feedback mechanism by CPR chest compression.
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Chapter 19 Solutions
A&P UNITY AND FUNCTION ACCESS
Ch. 19.1 - Prob. 1AYLOCh. 19.1 - Names of the great vessels directly connected to...Ch. 19.1 - Prob. 3AYLOCh. 19.1 - Prob. 4AYLOCh. 19.2 - Prob. 3BYGOCh. 19.2 - Prob. 1AYLOCh. 19.2 - Relative thickness of the myocardium in different...Ch. 19.2 - Structure and function of the fibrous skeleton of...Ch. 19.2 - Prob. 4AYLOCh. 19.2 - Names and synonyms for all four valves of the...
Ch. 19.2 - Prob. 6AYLOCh. 19.2 - Prob. 7AYLOCh. 19.2 - Prob. 8AYLOCh. 19.2 - Prob. 9AYLOCh. 19.2 - Prob. 10AYLOCh. 19.2 - Anatomy of the major veins that drain the...Ch. 19.3 - Prob. 1AYLOCh. 19.3 - Prob. 2AYLOCh. 19.3 - Components, of the cardiac conduction system and...Ch. 19.4 - Prob. 1AYLOCh. 19.4 - Prob. 2AYLOCh. 19.4 - The mechanism that causes cells of the SA node to...Ch. 19.4 - The spread of excitation through the atria, AV...Ch. 19.4 - Prob. 5AYLOCh. 19.4 - Prob. 6AYLOCh. 19.4 - Prob. 7AYLOCh. 19.5 - Prob. 1AYLOCh. 19.5 - Prob. 2AYLOCh. 19.5 - Prob. 3AYLOCh. 19.5 - Prob. 4AYLOCh. 19.5 - In each phase of the cardiac cycle, which chambers...Ch. 19.5 - The typical duration, in seconds, of atrial...Ch. 19.5 - Prob. 7AYLOCh. 19.5 - Prob. 8AYLOCh. 19.6 - Prob. 29BYGOCh. 19.6 - Prob. 30BYGOCh. 19.6 - The definition of cardiac output (CO); how it can...Ch. 19.6 - Prob. 2AYLOCh. 19.6 - Prob. 3AYLOCh. 19.6 - Prob. 4AYLOCh. 19.6 - Prob. 5AYLOCh. 19.6 - Mechanisms by which sympathetic and...Ch. 19.6 - Prob. 7AYLOCh. 19.6 - Prob. 8AYLOCh. 19.6 - Mechanisms by which epinephrine and...Ch. 19.6 - Prob. 10AYLOCh. 19.6 - Prob. 11AYLOCh. 19.6 - Prob. 12AYLOCh. 19.6 - Prob. 13AYLOCh. 19.6 - Prob. 14AYLOCh. 19.6 - Conditions that increase afterload: the effect of...Ch. 19.6 - Prob. 16AYLOCh. 19.6 - Why stroke volume may be unusually high and...Ch. 19.6 - Prob. 18AYLOCh. 19.6 - Prob. 19AYLOCh. 19.6 - Prob. 20AYLOCh. 19.6 - Prob. 21AYLOCh. 19 - The cardiac conduction system includes all of the...Ch. 19 - Prob. 2TYRCh. 19 - Assume that one ventricle of a childs heart has...Ch. 19 - Prob. 4TYRCh. 19 - Prob. 5TYRCh. 19 - Prob. 6TYRCh. 19 - The atria contract during a. the first heart...Ch. 19 - Prob. 8TYRCh. 19 - Prob. 9TYRCh. 19 - Prob. 10TYRCh. 19 - The contraction of any heart chamber is called and...Ch. 19 - Prob. 12TYRCh. 19 - The circumflex artery travels in a groove called...Ch. 19 - Prob. 14TYRCh. 19 - Electrical signals pass quickly from one...Ch. 19 - Repolarization of the ventricles produces the of...Ch. 19 - Prob. 17TYRCh. 19 - Prob. 18TYRCh. 19 - Blood in the heart chambers is separated from the...Ch. 19 - The Frank-Starling law of the heart explains why...Ch. 19 - atrio-Ch. 19 - brady-Ch. 19 - Prob. 3BYMVCh. 19 - Prob. 4BYMVCh. 19 - lun-Ch. 19 - Prob. 6BYMVCh. 19 - Prob. 7BYMVCh. 19 - Prob. 8BYMVCh. 19 - Prob. 9BYMVCh. 19 - Prob. 10BYMVCh. 19 - Prob. 1WWTSCh. 19 - One-way valves prevent atrial systole from driving...Ch. 19 - Prob. 3WWTSCh. 19 - Prob. 4WWTSCh. 19 - Prob. 5WWTSCh. 19 - Prob. 6WWTSCh. 19 - If all nerves to the heart were severed, the heart...Ch. 19 - If the two pulmonary arteries were clamped shut,...Ch. 19 - Unlike skeletal muscle, cardiac muscle cells do...Ch. 19 - An electrocardiogram is a tracing of the action...Ch. 19 - Prob. 1TYCCh. 19 - Prob. 2TYCCh. 19 - Becky, age 2, was born with a hole in her...Ch. 19 - Prob. 4TYCCh. 19 - Prob. 5TYC
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- a. Why is a minimum flow rate of 5 Lpm recommended for oxygen delivery by mask? b. Why will an air entrainment mask never deliver 100% oxygen? c. Briefly explain why the trans-tracheal catheter requires less oxygen flow than the nasal cannula to achieve a given arterial partial pressure of oxygen. d. Explain the difference between a high-flow and a low-flow oxygen delivery system. Give an example of each.arrow_forwardfor its oxygen then it may die, forming rct. The severity of this condition depends on the precise location of the occlusion, which downstream tissues are involved, and how large an area of tissue dies. Use Figure 4.9 as a reference and list the flow of blood through both circuits in order, beginnng with the right atrium (don't forget to include the heart valves). 1. If an embolus breaks off in a systemic vein in the leg, it would be able to pass through: It would occlude: 2. If an embolus formed in the left ventricle, it would be able to pass through: 3. It would occlude: 4.arrow_forwardCarotid Sinus Massage is used as a clinical tool in the diagnosis of certain cardiovascular disorders. In addition, it’s simply a cool bit of physiology that highlights part of the baroreceptor reflex. In simple terms, what effect(s) do/does the manual massaging of the carotid sinus have on the above-noted effector(s)? Why? It is thought that the elderly tend to have hypersensitivity with this reflex; often contributing to death. It’s also believed that this response partially contributes to death by hanging or by manual strangulation. Briefly describe how this too is consistent with your understanding of the reflex.arrow_forward
- If the transpulmonary pressure equals zero,a. a pneumothorax has probably occurred.b. the lungs cannot inflate.c. elastic recoil causes the lungs to collapse.d. all of these apply.arrow_forwardIdentify and describe the structure shown in the figure below. What role does this structure contribute to the functional myocardium? Identify the structure shownarrow_forwardWhy does the right ventricle have a bicuspid valve? a. The low pressure generated by the right ventricle is best suited to bicuspid valve compared with a tricuspid valve b. The high pressure generated by the right ventricle would be better controlled by a bicuspid compared with a tricuspid valve c. Only a short pumping distance to the lungs is required for the bicuspid valve d. The right ventricle does not have a bicuspid valvearrow_forward
- Women in the late nineteenth and early twentieth centuries wore whalebone corsets that severely restricted the respiratory and digestive system. These corsets were worn to have a wasp-like waist. It was quite common for these women to faint- in fact, they had "fainting counches". Explain the physiological reason for their fainting problemsarrow_forwardWhy is it necessary to stimulate papillary muscles in the ventricle slightly earlier than the rest of the ventricular wall myocardium? a. to assure rapid conduction speed of the action potential b. to pull on AV valve cusps to prevent backflow c. to assure blood will surge toward the semilunar valves d. to assure coordinated contraction of the ventricular myocardiumarrow_forwardIllustrate and trace the flow of blood in a pulmonary circulation. Label your illustration. Represent the flow of blood using colored arrows. Use red ink to represent oxygenated blood and use blue ink for deoxygenated blood. Give a short explanation of your illustration.arrow_forward
- Assuming normal anatomy, which of the following landmarks is appropriate for gaining subclavian venous access? A. Needle insertion medial to the sternocleidomastoid muscle, just medial to the carotid artery B. Needle insertion above the inguinal ligament, lateral to the femoral artery C. Needle insertion at the midpoint of the clavicle with the needle directed toward the suprasternal notch D. Needle insertion at the lateral border of the clavicular head of the sternocleidomastoid muscle in the interscalene groovearrow_forwardWhich of the the following does not assist in returning the blood to the hwart through the veins? A. Valves in the veins B. He respiratory pump C. He effect of gravity D. The pumping action of the heartarrow_forwardWhich of these statements about intrapulmonary pressure and intrapleural pressure is true?A.The intrapulmonary pressure is always subatmospheric.B.The intrapleural pressure is always greater than the intrapulmonary pressure.C.The intrapulmonary pressure is greater than the intrapleural pressure.D.The intrapleural pressure equals the atmospheric pressure.arrow_forward
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