Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 19, Problem 9CYU
What is the significance of the gap junctions in the intercalated discs?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What is the function of intercalated discs?
(vii) What is creatine phosphokinase (CPK) and why are elevated CPK levels in the
blood suggestive of a myocardial infarction?
(viii) What is cor pulmonale?
(ix) Describe the main clinical findings (with cor pulmonale) on examination. Explain
your answer.
How do intercalated discs enhance the functioning of cardiac muscle tissue?
Chapter 19 Solutions
Human Anatomy
Ch. 19 - Prob. 1CYUCh. 19 - Prob. 2CYUCh. 19 - What is another name for the epicardium?Ch. 19 - Identify the heart chamber or chambers that...Ch. 19 - Prob. 5CYUCh. 19 - Prob. 6CYUCh. 19 - During ventricular systole, are the AV valves open...Ch. 19 - Differentiate a stenotic valve from an incompetent...Ch. 19 - What is the significance of the gap junctions in...Ch. 19 - What is the pacemaker of the heart, and where is...
Ch. 19 - Prob. 11CYUCh. 19 - Prob. 12CYUCh. 19 - Prob. 13CYUCh. 19 - How would incomplete formation of the...Ch. 19 - Which chamber of the heart is formed from the...Ch. 19 - What is the single most important factor for...Ch. 19 - The most external part of the pericardium is the...Ch. 19 - Prob. 2RQCh. 19 - How many cusps does the right atrioventricular...Ch. 19 - Prob. 4RQCh. 19 - Prob. 5RQCh. 19 - Prob. 6RQCh. 19 - Prob. 7RQCh. 19 - Prob. 8RQCh. 19 - Prob. 9RQCh. 19 - Which layer of the heart wall is the thickest? (a)...Ch. 19 - The inferior left corner of the heart is located...Ch. 19 - Ben was annoyed when his lab partner insisted that...Ch. 19 - Describe the location of the heart within the...Ch. 19 - Trace a drop of blood through all the heart...Ch. 19 - Prob. 15RQCh. 19 - Sketch the heart and draw all the coronary vessels...Ch. 19 - Prob. 17RQCh. 19 - Prob. 18RQCh. 19 - Make a drawing of the adult heart and the...Ch. 19 - How do the right and left ventricles differ...Ch. 19 - Which is more resistant to fatigue, cardiac muscle...Ch. 19 - Describe the structure and function of an...Ch. 19 - Compare and contrast the structure of cardiac...Ch. 19 - Classify the three congenital heart...Ch. 19 - Prob. 2CRCAQCh. 19 - Prob. 3CRCAQCh. 19 - After a man was stabbed in the chest, his face...Ch. 19 - A heroin addict felt tired, weak, and feverish....Ch. 19 - Another patient had an abnormal heart sound that...Ch. 19 - Prob. 7CRCAQCh. 19 - During a lethal heart attack, a blood. clot lodges...Ch. 19 - Prob. 9CRCAQ
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
- Explain why intercalated discs are important to cardiacmuscle functionarrow_forwardPeter collapsed in his closed garage when he left his car motor running.What is the likely reason for Peter’s collapse, and how might this have killed him if he hadn’t received rapid treatment?arrow_forwardWhat is the function of lamina propria?arrow_forward
- While downhill skiing, Jerry lost control and appeared to hit into a tree, chest first. The ski patrol that are also certified in EMT reported that Jerry was found with his head cocked at a peculiar angle and it looked like he had a fracture at the position of the C2 vertebra. During triage, Jerry appeared cyanotic and apneic. His heart was still beating, but his pulse was fast and thready. a) Explain how the described angle of the head might contribute to the loss of breathingarrow_forwardWhile downhill skiing, Jerry lost control and appeared to hit into a tree, chest first. The ski patrol that are also certified in EMT reported that Jerry was found with his head cocked at a peculiar angle and it looked like he had a fracture at the position of the C2 vertebra. During triage, Jerry appeared cyanotic and apneic. His heart was still beating, but his pulse was fast and thready. a) Explain how the described angle of the head might contribute to the loss of breathingb) What would be the best possible explanation for the cyanosis? Jerry was artificially ventilated and survives the transport to the hospital. Upon admission, the following notes were taken by the trauma team nurse. Right thorax compressed with ribs 7 to 9 fractured Right lung pneumothorax; trachea deviation to the left c) Describe the causes of pneumothrax and why this condition would result in the right lung to collapse? d) Why hasn't the left lung collapse? e) The physician inserts a chest tube into the…arrow_forward(a) Name the type of blood vessel labelled (i) C. (ii) D. (b) In which direction does blood in vessel A travel? (c) Which of the four blood vessels contains the most oxygen? (d) What happens to the amount of oxygen in the blood as it passes through the body organs? (e) What is the chamber of the heart labelled X? ·arrow_forward
- The muscle cells of a heart chamber work as a functional syncytium. In terms of heart function this means... A) All the cardiac muscle cells are controlled by one motor neuron, resulting in coordinated contraction. B) All the cardiac muscle cells are electrically connected by gap junctions, resulting in coordinated contraction. C) All the cardiac muscle cells are stimulated to contract by hormone release, resulting in near-coordinated contraction. D) All the cardiac muscle cells contract independently of each other (fibrillation).arrow_forwardWhile downhill skiing, Jerry lost control and appeared to hit into a tree, chest first. The ski patrol that are also certified in EMT reported that Jerry was found with his head cocked at a peculiar angle and it looked like he had a fracture at the position of the C2 vertebra. During triage, Jerry appeared cyanotic and apneic. His heart was still beating, but his pulse was fast and thready. b) What would be the best possible explanation for the cyanosis?arrow_forwardDescribe the structure of intercalated discs in cardiac musclecells, and briefly discuss their functions.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Surgical Tech For Surgical Tech Pos CareHealth & NutritionISBN:9781337648868Author:AssociationPublisher:Cengage
Surgical Tech For Surgical Tech Pos Care
Health & Nutrition
ISBN:9781337648868
Author:Association
Publisher:Cengage
GCSE PE - ANTAGONISTIC MUSCLE ACTION - Anatomy and Physiology (Skeletal and Muscular System - 1.5); Author: igpe_complete;https://www.youtube.com/watch?v=6hm_9jQRoO4;License: Standard Youtube License