Atrioventricular node - Study guides, Revision notes & Summaries

Bio 335 Exam 3 Study Guide Questions and Answers Rated A+ The atrioventricular valves close when ___. A) the pressure in the right atrium surpasses that in the right ventricle B) the pressure in the right ventricle surpasses that in the right atrium C) the pressure in the left atrium surpasses that in the left ventricle D) the pressure in the left ventricle surpasses that in the right atrium B) the pressure in the right ventricle surpasses that in the right atrium Which of the following ...

1. A client with asthma receives a prescription for high blood pressure during a clinic visit. Which prescription should the nurse anticipate the client to receive that is least likely to exacerbate asthma? A. Carteolol (Ocupress). B. Propranolol hydrochloride (Inderal). C. Pindolol (Visken). Incorrect D. Metoprolol tartrate (Lopressor). Correct The best antihypertensive agent for clients with asthma is metoprolol (Lopressor) (C), a beta2 blocking agent which is also cardiosel...

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...

NCC EFM practice Questions and Answers Latest 2022/2023 Which of the following factors can have a negative effect on uterine blood flow? a. Hypertension b. Epidural c. Hemorrhage d. Diabetes e. All of the above e. All of the above Stimulating the vagus nerve typically produces: a. A decrease in the heart rate b. An increase in the heart rate c. An increase in stroke volume d. No change a. A decrease in the heart rate The vagus nerve begins maturation 26 to 28 weeks. Its dominance resul...

B - ANSWERNormal heart sounds are caused by which of the following events? A) friction of blood against the chamber walls B) closure of the heart valves C) opening of the heart valves D) excitation of the sinoatrial (SA) node A - ANSWERWhich of the events below does NOT occur when the semilunar valves are open? A) Ventricles are in diastole. B) Blood enters pulmonary arteries and the aorta. C) Ventricles are in systole. D) AV valves are closed B - ANSWERDamage to the ________ cause...

Identify Dysrhythmia! Exam Questions And Answers 2 Lead ECG placement? The precordial leads, also known as chest leads or V leads, view the heart in the horizontal plane. They include six unipolar leads (V1, V2, V3, V4, V5, and V6) that measure electrical activity between the center of the heart and a positive electrode on the chest wall. Heart conduction 1. Sinoatrial node 2. Atrioventricular node 3. Atrioventricular bundle 4. Right and left bundle branches 5. Purkinje fibers ...

ENA EMERGENCY NURSING ORIENTATION 3.0 ALL TESTS QUESTIONS & ANSWERS LATEST 2024 NEW!!! Which type of shock causes a temporary loss of motor, sensory, and reflex functions below the level of a lesion? - Answer- Spinal shock According to the rule of nines, burns of the anterior trunk and both anterior arms account for which percentage of body surface area? - Answer- 27 percent Which effect does parasympathetic stimulation have on the heart? A. It increases peripheral vascular resist...

APHY 102: the Cardiovascular System Latest Update Graded A+ Aneurysm a bulge in the wall of an artery, formed when blood pressure dilates a weakened area of the vessel that can burst wall of artery Anterior Interventricular Artery Branch of left coronary artery along anterior interventricular sulcus; upplies blood to both ventricles Aorta supplies oxygenated blood to systemic circuit Aortic semilunar valve valve which regulates blood flow from the left ventricle to the aorta, p...

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...

ATE 1211 Final Exam Questions with Certified Solutions **1. What does the P-wave on an ECG indicate about cardiac activity?** Options: - Represents the start of ventricular systole - Marks the onset of ventricular diastole - Indicates atrial depolarization - Reflects ventricular depolarization atrial depolarization **2. Which physiological event generates the initial heart sound?** Options: - Closure of the AV valves leading to pressure change - Turbulent flow as blood passe...