SavedHelpnich of the following statements is true about the regulation of the heart by the autonomic nervous system?Multiple ChoiceThe autonomic nervous system initiates the heart's contractions.Sympathetic nerves release.norepinephrine at adrenergic nerve endings that decreases the activities of the sinoatrial and atrioventricularnodes.Parasympathetic nerves release acecholine at cholinergic nerve endings that decreases the activities of the sinoatrial and atrioventricularnodes.The heart is only regulated by the sympathetic nerves, not the parasympathetic nerves.

Ans. The ture statement is parasympathetic nerves release acetylcholine at cholinergic nerve endings…

Answered: Saved He nich of the following…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Baroreceptor reflex-mediated increases in sympathetic activity causes vasodilation, bringing elevated blood pressure back to normal. True or False True False
Which of the following is associated with elevated parasympathetic activity? shifting blood flow away from gastrointestinal tract enhanced absorption of nutrients increased heart rate increased contractile force of the heart both Cand D
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The next patient seen by the same doctor was suffering from hyperkalemia and was experiencing cardiac arrhythmias. Which of the following reason/s explain/s why this patient was experiencing cardiac arrhythmias? O hyperkalemia leads to an increase in action potential generation because potassium ions in the ECF makes the resting membrane potential more negative O hyperkalemia leads to a decrease in action potential generation because the potassium ion level in the ICF will cause hyperpolarization O hyperkalemia leads to an increase in action potential generation because the high level of potassium ions in the ICF will make achieving threshold easier O a and b
Mr Rupinder Patel is a 70 year old retired businessman. He has a past medical history of Congestive Cardiac Failure (CCF). This developed after he experienced a two myocardial infarctions 8 years ago. Both ventricles were affected. The death of his wife 2 years ago has led to Rupinder experiencing several episodes of depression which has been exacerbated by his sons both moving to Western Australia for work. The loneliness and sadness makes it difficult for him to be concordant with his CCF management and sustain the necessary lifestyle adjustments required to prevent exacerbations. This has resulted in several admissions to hospital for management and review of his CCF. For this current admission, Mr Patel was referred to hospital by his Nurse Practitioner, after recently rapidly gaining weight (currently 110kg), since his previous visit. The time now is 0800 and you have just come on for your morning shift. Mr Patel has been on the ward for only two hours after spending…
43.
When we flung our arms around on the first day of class our heart rate increased to meet the demands of our exercising muscles. What was the mechanism by which this occurred? O Norepinephrine bound to receptors on the SA and AV nodes of the heart O The excess CO2 in the plasma generated by our skeletal muscles directly stimulated our cardiomyocytes to contract more frequently O Parasympathetic postganglionic neurons released acetylcholine onto the SA and AV nodes of the heart
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Factors affecting Cardiac Output Explain how the following factors affect HR, SV and CO. Write the letter of your answer
Norepinephrine is released by the , receptors on pacemaker cells to speed the heart rate. nervous system onto parasympathetic, cholinergic parasympathetic, adrenergic sympathetic, cholinergic • sympathetic, adrenergic

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