Excitability Study guides, Class notes & Summaries

4 functional properties of all muscle tissues correct answer: contractility, excitability, extensibility, elasticity Contractility correct answer: ability to shorten forcibly when stimulated what is responsible for contractility correct answer: actin and myosin excitability correct answer: nerve signals or other stimuli excite muscle cells by causing electrical impulses extensibility correct answer: muscle cells can be stretched or lengthened when does extensibility occur cor...

Midterm Exam: NR546/ NR 546 Advanced Pharmacology Psychopharmacology for the Psychiatric-Mental Health Nurse Practitioner | 2024 / 2025 Update | Questions and Verified Answers | New!! – Chamberlain Q: What diagnosis has a diagnosis of psychosis as a feature? Answer: mania depression cognitive disorders dementia Q: What are some positive symptoms? Answer: Hallucinations Delusions Thought disorder Hostility Excitability Q: What are some Negative symptoms? Answer: Affective flattening Alogia Anhe...

BIOL 162 Lab Practical 2 Exam Review 2024 A+ 1. Skeletal Muscle 2. Excitability 3. Contractility 4. Extensibility 5. Muscle Fibers

Excitability correct answers the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization correct answers occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity correct answers 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:...

A nurse is preparing to mix short-acting and intermediate-acting insulin in one syringe to administer to a client who has type 1 diabetes mellitus. Identify the sequence the nurse should follow. - 1: Draw up the volume of ainsulin from the intermediate-acting insulin vial. 2: Inject the volume of air equal to the amount of insulin to withdraw from the intermediate-acting insulin vial. 3: Inject the volume of air equal to the insulin dose form the short-acting insulin vial 4: Withdraw...

Dysrhythmias week 2 Week 2: Dysrhythmias • Dysrhythmias and arrythmias mean the same thing • Abnormal cardiac rhythms are termed dysrhythmias. • Prompt assessment of dysrhythmias and the client’s response to the rhythm is critical. Properties of Cardiac Cells • AUTOMATICITY-ability to initiate electrical impulses spontaneously and continuously (without thinking about it- SA node working (primary pacemaker) • EXCITABILITY- ability of cardiac cells to respond to electrical act...

HESI Health and Physical Assessment Exam Study Questions with COMPLETE SOLUTIONS (LATEST 2024] When assessing a client who had a thyroidectomy yesterday, which cue would the nurse associate with an initial sign of hypocalcemia? Headache Pallor Paresthesias Blurred vision - CORRECT ANSWER Paresthesias Rationale Normally, calcium ions block the movement of sodium into cells. When calcium is low, this allows sodium to move freely into cells, creating increased excitability of the n...

Muscle Tissue Property: Electrical Excitability - ANSWER ions are charged molecules that have different concentrations between a semipermeable membrane Muscular Tissue Property: Contractility - ANSWER the ability to forcefully contract Muscular Tissue Property: Extensibility - ANSWER the ability to stretch Muscular Tissue Property: Elasticity - ANSWER the ability to return to your original shape Microscopic Anatomy of a Skeletal Muscle Fiber - ANSWER -each mature skeletal muscle fibe...

Action of Benzodiazepines Correct Answer-Increase the effect of GABA - Reduces neural excitability Action of SSRIs (selective serotonin reuptake inhibitors) Correct Answer-Increase serotonin by inhibiting the reuptake of it Action of SNRIs (Selective serotonin-norepinephrine reuptake inhibitors) Correct Answer-Increase both serotonin and norepinephrine but inhibiting the reuptake Action of TCA's (Tricyclic antidepressants) Correct Answer-Increases norepinephrine and serotonin - some i...

How are systemic medications administered? - correct answer Orally, injection (subcutaneously or intramuscularly) or intravenously How should drops be properly instilled into a patient's eye? - correct answer Into the lower cul de sac (lower fornix) What does the term idiosyncrasy refer to with ophthalmic drugs? - correct answer A bizarre, peculiar reaction to a drug that is not commonly seen, such as tremors, excitability or even collapse What is the name of the instrument used to neu...