Card Set Information
Anatomy and Physiology of the Heart
Which side of the heart carries deoxygenated blood?
The right side
Which side of the heart carries oxygenated blood?
What is the only artery that carries deoxygenated blood?
The Pulmonary Artery
What takes blood away from heart?
What brings blood back to heart
Which atrium do the inferior and superior vena cava's meet in?
The right atrium
What is the strongest chamber in the heart?
What is automaticity?
The hearts ability to create own electrical impulses
What is the SA NODE?
Pace maker of the heart
60-100 BPM at resting
What is the AV NODE?
Delays electrical impulses
40-60 BPM at resting
What is Bundle of His?
Divides into left and right bundle branch then to purkinje fibers
What do the coronary arteries do?
Supply blood flow to the heart muscle
What does the Right Coronary Artery do?
Supplies blood flow to the right side
What does the Left Coronary Artery do?
Splits to the LAD and the LCA
In which phase do the coronary arteries fill up?
What is the function of the red blood cell?
What is the function of the white blood cell?
What are platelets
What is plasma?
Fluid that your blood is in
majority of your blood is plasma
What is atherosclerosis?
Materials build up inside vessels
this decreases or obstructs blood flow
What is Angina Pectoris?
Pain in the chest that occurs when the heart does not recieve enough oxygen
Typicalls crushing or squeezing pain
Rarely last longer than 15 minutes
Can be difficult to differentiate from heart attack
What is a heart attack?
Acute myocardial infarction
Pain signals death of cells
Opening the coronary artery within the first hour can prevent damage
Immediate transport is essential
What are some signs and symptoms of heart attack?
Weakness, nausea, sweating without obvious cause
pain in lower jaw, arms, back, abdomen, or neck
Sudden arrhythmia with syncope
Shortness of breath of dyspnea
What percent of AMI patiends do not reach hospital?
What is Arrythmia/Dysrythmias
Abnormal heart beat
Ventricular Tachycardia "VT"
VT still has pulse
Pulseless VT does not
What is congestive heart fauilure?
Occurs when ventricles are damaged
Heart tries to compensate
Increased heart rate
Enlarged left bentricle
Fluid backs up into lungs or body as heart fails to pump
What is the reason for asprin?
Prevents clots from becoming bigger
normal dosage is 162-324mg
Baby asprin is 81mg
What are the forms of nitroglycerin?
What are the effects of Nitroglycerin?
Relaxes blood vessel walls
Dilates coronary arteries
Reduces workload of heart
What are some contraindications with nitro?
Systolic BP below 100mmHg
Loses strength overtime
Specially if exposed to light
What happens when nitroglyverin tablets lose potency?
The patient may not feel the fizzing sensation
May not experience the burning sensation and headache