Depolarization - Study guides, Class notes & Summaries

Nurs 5315: Adv Patho Exam 3 Set 1 | Latest Version | 2024/2025 | Graded A+ **Describe the flow of blood through the heart.** **Blood flows from the body into the heart through the vena cavas, enters the right atrium, passes through the tricuspid valve into the right ventricle, exits via the pulmonic valve into the pulmonary artery, travels to the lungs, returns via the pulmonary veins to the left atrium, passes through the mitral valve into the left ventricle, exits via the aortic valve...

CCTC NUR 221 UNIT 2: MANAGEMENT OF PATIENTS WITH ALTERATIONS IN FLUID AND GAS TRANSPORT: CARDIOVASCULAR (TEST 2) Exam Questions And Answers (Verified And Updated) 3 layers of the heart - answerepicardium, myocardium, endocardium diastole: - answerperiod of ventricular relaxation resulting in *ventricular filling* Systole: - answerperiod of *ventricular contraction* resulting in ejection of blood from the ventricles into the pulmonary artery and aorta depolarization- - answerExchange of...

action potential can be generated by virtually all cells of the body because all cells possess cell membranes - ANSWERfalse, only cells with excitable membranes such as nervous and muscle cells can generate action potential Nodes of Ranvier are only found on myelinated, peripheral neural processes - ANSWERtrue efferent nerve fibers may be described as motor nerve fibers - ANSWERtrue a positive feedback cycle is the main force in the generation of graded potentials at receptor ends - ANS...

MAYO ECG Exam Questions Correct Answers Current Update (Verified A+ Pass) PR interval represents: - Answers - electrical conduction time from the atria to the AV node Is atrial flutter benign? - Answers - no PR interval - Answers - .12-.20 QRS interval - Answers - <.12 What lead do you look at - Answers - V1 Interventions - Answers - assess the patient QRS wave - Answers - ventricular depolarization P wave - Answers - atrial depolarization AV node purpose - Answers ...

Advanced Patho NURS 5315 Exam 1 Questions & Verified Correct Answers Action potential - ANSWER : The process by which excitable cells transmit information from one to another. How is the action potential altered by a potassium imbalance? (Hyperkalemia) - ANSWER : The ECF has more K+ ions. The membrane potential becomes more positive (hypopolarized). Cells become MORE excitable. T waves peak. QRS complexes widen. Causes dysrhythmias, weakness, paresthesia. {If membrane poten...

What is the action of acetylcholine and where is the site of action? Action Site: Excitatory Neuromuscular junction of some CNS pathways Acetylcholinesterase inhibitors, often used to treat neurobiological disorders: Increase synaptic Transmission Researchers find a compound that when applied to neurons, activates a protein involved in vesicle fusion with a presynaptic membrane. This compound would: Increase synaptic transmission Resting Potential Na- and K- channels are closed K- is concent...

Midterm & Final Exam: NR567/ NR 567 (Latest 2024/ 2025 Update) Advanced Pharmacology for the AGACNP Quiz Bank| Questions and Verified Answers| 100% Correct – Chamberlain Q: The nurse is caring for a very anxious 33-year-old female patient scheduled for abdominal surgery today. The patient said the anesthesiologist said she would receive succinylcholine (anactine) during surgery and asks the nurse how long it will take before the medication starts to work. What is the nurse's best response?...

Depolarization, Summation, and Neural Pathways Questions And Answers Depolarization - ANS-Action potential depolarizes synaptic knob Secondary Messenger - ANS-Ca enters axoplasm triggering norepi First Messenger - ANS-norepi binds to receptor site causing adenyl cyclase within the cytoplasm to catalyze the formation of cyclic AMP from ATP Second Messenger - ANS-cyclic AMP opens ion channels allowing NA to depolarize membrane Summation - ANS-Integration of EPSP's and IPSP's to reach depo...

Afferent - Signal to the brain, input Efferent - motor, output sensory receptors - receptors of the nervous system Control center of CNS - Brain Effectors of nervous system - muscles and glands transduction - How sensory information is received What is the CNS composed of? - brain and spinal cord What is the PNS composed of? - cranial nerves III-XII, Spinal nerves, ganglia, enteric plexuses, sensory receptors ganglion - collection of nerve cell bodies in the peripheral ne...

Midterm Exam: NUR631/ NUR 631 (New 2023/2024 Update) Advanced Physiology and Pathophysiology _Study Guide with Questions and Verified Answers_ 100% Correct – GCU QUESTION Hypernatremia S/S Answer: You are 'fried' or S.A.L.T. F - Fever (low grade), flushed skin R - Restless (irritable) I - Increased fluid retention and increased BP E - Edema (peripheral and pitting) D - Decreased urinary output, dry mouth S = Skin flushed A = Agitation L = Low-grade fever T = Thirst ...