ANATOMY AND PHYSIOLOGY THE UNITY OF FORM
9th Edition
ISBN: 9781264807123
Author: SALADIN
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Question
Chapter 19.6, Problem 30BYGO
Summary Introduction
To analyze:
The Frank-Starling law’s principle and its mechanism or preventing pulmonary or systemic congestion in general.
Introduction:
Preload is one of the variables that affect the cardiac output and thereby the stroke volume. It is the tension or stretch experienced by the myocardium just before contraction starts. When the heart is filled with blood, there is tension. It is referred to as preload.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Briefly define 1) Starling’s Law of the heart, 2) the basic cellular mechanism thought to mediate this response, and 3) the physiological significance of this effect.
Identify and describe the structure shown in the figure below. What role does this
structure contribute to the functional myocardium?
Identify the structure shown
Starling's law of the heart ?
Chapter 19 Solutions
ANATOMY AND PHYSIOLOGY THE UNITY OF FORM
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
Knowledge Booster
Similar questions
- a) A consequence of the Frank-Starling law of the heart is that the outputs of the right and left ventricles match. Explain why this is important and how this match is made.b) The excitation-contraction matching mechanism within the heart muscle is different from that of the skeletal muscle. How might these differences be related to the difference between action potentials in cardiac muscle and skeletal muscle?arrow_forward.arrow_forwardExplain the Frank-Starling Mechanism of the heart pumping.arrow_forward
- Why is the Frank-Starling law of the heart important to the understanding of heart failure?arrow_forwardThe exact cause of blood clotting in the left atrium of the heart during atrial fibrillation (AF) is not known. In part it might be due to blood stasis (not moving) or it may result in combination with endothelial cells damage. (A) What are the potential mechanisms that might drive clotting and what markers might you look for in the blood to predict potential risk? (B) Other than treating the arrhythmia, what other pharmacological intervention might be provided to AF sufferers?arrow_forward27. A transient decrease in intrathoracic pressure increases pulmonary vascular capacitance and decreases pulmonary vascular resistance. When the decrease in intrathoracic pressure occurs during ventricular diastole, closure of the pulmonic valve is delayed. Which of the following heart sounds is most likely to be heard as a result of these events?A) Ejection soundB) Opening snapC) Splitting of S1D) Splitting of S2 E) S3 F) S4arrow_forward
- Considering the function of the heart, why is it important that the myocardium cannot be tetanized?arrow_forward) The blood that remains in the ventricles at the end of ejection is called the residual volume and is typically about sSomL. Congestive heart failure is caused by ventricle. This could result in all of the tollowing excepti al Pulinonary edema b) decreased aortic reduced pumping etficieney of of the left pressure and blood flow. c) right ventricolar failure dl congestion of blood in e) residual volume the pulmonary artery. less than soml. a small hydropho bie molecule that can the freely diff 2) Carbon dieride acress plama membranes. Excess corbon dioxi de provides drive for respiration ,primarily arterial PCO, would cause all ot the following changes except8 al į PCOa in the cerebrespinad fluid b) v HCO; reabsorption by the Kidney a ↑ plas ma pH ↑ HCO; transport out of the cerebrospimal fluid e) fuster ventilution rate ) Alcohol inhibits the productien of ADH A person who has consumed alcohol would have: al J urine outp.t, blood osmolarity A Turine output bloed osmolarity is primary…arrow_forwardThe left AV valve has only two large leaflets, while the right AV valve has three smaller leaflets. It is a general principle of physiology that structure is a determinant of—and has coevolved with—function. Although it is unknown why the two valves differ in structure in this way, what difference in the functional demands of the left side of the heart might explain why there is one less valve leaflet than on the right side?arrow_forward
- In a patient given a cardiac glycoside, important effects of the drug on the heart include which of the following? a) Increased force of contraction. b)Decreased atrioventricular conduction velocity c)Decreased ejection time d)Increased ectopic automaticityAll of the abovearrow_forwardWhat is the relationship of chest pain in myocardial infarction to the bioenergetic pathways (Krebs Cycle, ketosis, oxidative phosphorylation and the electron transport chain, etc)?arrow_forwardPlease help in answering this question - more than one answer may be correct: The pulsatile flow created by the heart is converted to continuous flow by A) magic B) closing of the mitral valve C) resistance of the arteries D) resistance of the arterioles E) elasticity of arteriesarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning