NURS 5315 ADV PATHO EXAM 3 SET 1|2023/24 UPDATE|GRADED A+
4 views 0 purchase
Course
NURS 5315 UTA
Institution
NURS 5315 UTA
Cardiac Blood Flow
o From body
o Through:
Vena cavas
Right atrium
Tricuspid valve
Right ventricle
Pulmonic valve
Pulmonary artery
o To lungs
Pulmonary vein
Left atrium
Mitral valve
Left ventricle
Aortic valve
o Back to body
Cardiac Anatomy
The heart is the size of a clo...
NURS 5315: ADV PATHO EXAM 3 SET 1
Cardiac Blood Flow - correct answer o From body
o Through:
♣ Vena cavas
♣ Right atrium
♣ Tricuspid valve
♣ Right ventricle
♣ Pulmonic valve
♣ Pulmonary artery
o To lungs
♣ Pulmonary vein
♣ Left atrium
♣ Mitral valve
♣ Left ventricle
♣ Aortic valve
o Back to body
Cardiac Anatomy - correct answer The heart is the size of a closed fist
2/3 of the heart is to the left of the midline
1/3 under the sternum
heart layers - correct answer Endocardium ( inner)
myocardium ( middle) Pericardium ( outer)
Cardiac action potential: phase 0 - correct answer rapid depolarization
Sodium influx d/t voltage-gated sodium channels opening
Cardiac action potential: phase 1 - correct answer initial repolarization of cells
voltage gated sodium channels closed
voltage gated potassium channels open
Potassium leaves cell slowly
Cardiac action potential: phase 2 - correct answer plateau phase
voltage gated calcium channels open
influx of calcium into the cell
balances potassium efflux
calcium influx triggers more calcium from sarcoplasmic reticulum > myocardial contraction
Cardiac action potential: phase 3 - correct answer Rapid Repolarization w/ potassium efflux
voltage gated potassium channels open
voltage gated calcium channels close
Cardiac action potential: phase 4 - correct answer resting membrane potential, -85 mV
High potassium permeability from the potassium channels
Potassium imbalance affect on myocardial action potentials - correct answer Hypokalemia-increased atrial preload leads to 1-3 degree blocks
Hyperkalemia-slows depolarization, leads to sunus bradycardia and junctional rhythm
Calcium imbalance affect on myocardial action potentials - correct answer Hypocalcemia-decreased contractility
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller FREEMANSHARP. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
