Bundle branches - Study guides, Class notes & Summaries

UCLA Phlebotomy Exam 4 | Questions and Verified Answers| 100% Correct| A Grade (2024/ 2025) Left AV valve function closes when the left ventricle contracts and prevents blood from flowing back into left atrium QUESTION Pulmonary semilunar valve Answer: between right ventricle and pulmonary artery -at the entrance of pulmonary artery QUESTION right semilunar valve function Answer: closes when the right ventricle relaxes and prevents blood from flowing back t...

TEST BANK FOR Basic Arrhythmias, 9th Edition by Gail Walraven, Answered-1) The inherent rate of the SA node is bpm. A) 30-60 B) 40-60 C) 60-100 D) 100-120 Answer: C Learning Obj.: 1.3 2) The inherent rate of the AV junction is bpm. A) 20-40 B) 40-60 C) 60-100 D) 100-120 Answer: B Learning Obj.: 1.3 3) The inherent rate of the ventricle is bpm. A) 20-40 B) 40-60 C) 60-100 D) 100-120 Answer: A Learning Obj.: 1.3 4) The built-in rate of each of the three major areas of the cond...

Telemetry med surg exam 3 Sinus node The intrinsic pacemaker. Cell membrane "leakiness" causes spontaneous depolarization at a rate of 60-100 times a minute. AV node Acts like a resistor to slow the impulse allowing time for the atria to completely contract before initiating ventricular contraction. Back up pacemaker if SA fails, pacing at a rate of 40-60 times a minute. Bundle of his "Cable" that passes through the fibrous sheath separating atria from ventricles. Divides into th...

OCCTH 583 Midterm Latest Update Graded A+ Dendrites Branchlike parts of a neuron that are specialized to receive information Cell Body / Soma The part of the neuron that contains the nucleus, which processes and integrates information Axon A threadlike extension of a neuron that carries nerve impulses away from the cell body A bundle of axons makes up a ___ Nerve Axon Collaterals Branches of the axon that allow one neuron to pass the signal to multiple effectors Where is t...

HLSC 2416 Exam 2 2023 Questions With Complete Solutions What is the heart? - CORRECT ANSWER a muscular pump that "pumps blood" into the blood vessels How are the blood vessels arranged? - CORRECT ANSWER in two continuous loops, the pulmonary circulation and the systemic circulation. When the heart contracts, it pumps blood simultaneously into both loops. What is the precordium? - CORRECT ANSWER a double-walled sac on the area of the anterior chest...

Relative refractory periods - ️️occurs towards the end of the T-wave when most ventricular cells are repolarized and vulnerable to new stimuli; can lead to VT if PVC lands during this time Refractory = resistant Supraventricular Tachycardia (SVT) - ️️§ regular but fast rhythm § rate 150-250 § P wave merged with T wave § PRI variable & difficult to measure § QRSà typically narrow § Common causes: stimulants, electrolyte imbalance, hypoxia Sinoatrial Node (SA node) Rate? ...

To determine whether there is a delay in impulse conduction through the ventricles, the nurse will measure the duration of the patient's: A) p wave B) q wave C) pr interval D) qrs complex D) qrs complex (the qrs complex represents ventricular depolarization. The p wave represents the depolarization of the atria. The pr interval represents depolarization of the atria, av node, bundle of his, bundle branches, and the purkinje fibers. The q wave is the first negative deflection following the...

Advent Health EKG Questions and Answers Rated A Afib The impulse originates in the Atria • The Atrial rate is > 300 and unable to measure [N/A] • No discernable P waves - PRI & Atrial rhythm cannot be measured [N/A] • The Ventricular rhythm is irregular • QRS within normal limits • If the Ventricular rate is <100 the rhythm is controlled A-fib; if the Ventricular rate is > 100 the rhythm is uncontrolled A-fib • This is a chronic rhythm for some patients Treatment: controlle...

NR509 Week 4 Questions and Answers Graded A+ The sac that surrounds and protects the heart is called the: a. Pericardium. b. Myocardium. c. Endocardium. d. Pleural space. a. Pericardium. The direction of blood flow through the heart is best described by which of these? a. Vena cava - right atrium - right ventricle - lungs - pulmonary artery - left atrium - left ventricle b. Right atrium - right ventricle - pulmonary artery - lungs - pulmonary vein - left atrium - left ventricle c. Aorta ...

CSEP CEP Study Guide Exam Questions & Answers 2024/2025 Autorythmic - ANSWERSSelf Exciteable, and repeatedly generate action potential eg. natural pace maker Cause of fundamental heart rhythm - ANSWERSNOT by nerve impulses or hormones, rather electrical impluse SA Node - ANSWERSMain natural pacemaker, faster conduction than autorhytmic fibres The Heart's electrical flow - ANSWERSSA Node to AV Node - AV Node to AV Bundle - Bundle of HIS to L and R branches to Apex and Purkinje FIbr...