Electrical conduction - Study guides, Class notes & Summaries

Excitability - Answer- the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization - Answer- occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity - Answer- the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex: the wave of depol...

Metaplastic cells are not better prepared to survive under stressful circumstances. True Correct! False Question 2 2.5 / 2.5 pts True/False: Hypertrophy can occur under normal and pathological conditions. Correct! True False Question 3 2.5 / 2.5 pts Multiple Choice Which are true of the mitochondria? Select all that apply. Portage Learning NURS 231 Pathophysiology Final Exam 100%VERIFIED | QUESTIONS AND ANSWERS Correct! It is involved in cellular respiration They are found far...

AZ Post Exam 1 and 2 Question and Answers 2023 Rated A+ One of the goals of crime prevention is to? 6.4.2 A) Focus the attention on the criminal rather than the crime B) Make Citizens aware that many crimes are easily prevented C) Assist agencies and accurately tracking crime Ans B Focusing on the victim is important because? 6.4.2 A) It shows them that you care about them B) Increases self esteem among victims C) Helps victims regain their sense of safety Ans C What is a benef...

CRAT Exam Questions And Answers Latest Update 2023/2024 Graded A+ . In addition to recording the ECG and preparing the report, an ECG technician must be able to: A. Determine if the tracing is accurate and recognize if interference causes abnormalities during the recording process. B. Evaluate tracing, recognize abnormal heart rhythms, and report abnormalities to the appropriate health care professionals. C. Maintain patient records and evaluate tracings. D. Perform ultrasounds on blood ...

X-Ray Circuit and Electrical Conductivity Questions & Answers 2023/2024 1. Conductors - ANS-Materials that conduct electricity very well 2. Insulators - ANS-Materials that do not conduct electricity well 3. Semi-Conductors - ANS-Materials that have electrical conductivity as well as resistance properties 4. Glass - ANS-An insulator material 5. Copper - ANS-A conductor material 6. Silicon - ANS-A semi-conductor material 7. Plastic - ANS-An insulator material 8. Gold - ANS-A conductor ...

Conduction System SA Node AV Node Bundle of His Right and Left bundle branches Purkinje Fibers SA Node primary pacemaker rate 60-100 Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen AV Node slightly delays impulse from atria to ventricles Bundle of His conducts impulses to left and right bundle branches Purkinje Fibers relay impulses to ventricular myocardium Depolarization ...

Portage Learning NURS 231 Pathophysiology Final Exam 2022 100%VERIFIED | QUESTIONS AND ANSWERS | GRADED A+. Score for this quiz: 190.5 out of 200 Question 1 2.5 / 2.5 pts True/False: Metaplastic cells are not better prepared to survive under stressful circumstances. True Correct! False Question 2 2.5 / 2.5 pts True/False: Hypertrophy can occur under normal and pathological conditions. Correct! True False Question 3 2.5 / 2.5 pts Multiple Choice Which are true of the mi...

Chapter 02: Introduction to the 12-Lead ECG TRUE/FALSE 1. The point where the QRS complex and ST segment meet is called the ST-junction or J-po ANS: T The point where the QRS complex and the ST segment meet is called the ST-junction or J-point. OBJ: Identify the J-point and ST-segment deviations. 2. If the wave of depolarization (electrical impulse) moves toward the positive electrode, the waveform recorded on ECG graph paper will be upright (positive deflection). ANS: T If the wave of...

TABLE OF CONTENTS The Human Body: An Orientation Exercise 1. The Language of Anatomy Exercise 2. Organ Systems Overview The Microscope and Its Uses Exercise 3. The Microscope The Cell Exercise 4. The Cell: Anatomy and Division Exercise 5. The Cell: Transport Mechanisms and Cell Permeability Histology: Basic Tissues of the Body Exercise 6. Classification of Tissues The Integumentary System Exercise 7. The Integumentary System The Skeletal System Exercise 8. Overview of the Skeleton:...

Patho Hesi Review Questions and Answers Already Passed A dissecting aneurysm is dangerous due to the fact that there is a tear in which layer of the vessel wall? Inner, middle, outer. medial layer- allows blood to seep into the middle layer A Pulmonary embolus can cause what kind of shock? obstructive shock A patient has type II diabetes, what symptoms should he expect? Select all that apply A. Extreme Hunger B. Excessive thirst C. Polyuria D. Salt craving E. Quick accumulation of fat A, ...