Cardiac Disorders Flashcards
Pulse Points
Temporal Artery (Front of ear)
Facial Artery (crossing edge of mandible/Jaw)
Carotid artery on Neck
Apical pulse at heart
Brachial artery- elbow
Radial artery-wrist
Femoral artery-Groan
Popliteal artery- behind knee
Dorsal pedis- foot
Heart function
Pump blood to pulmonary (lungs) and systemic circulations (Rest of the body)
Outer layer of heart
Pericardium
Middle layer of heart
Myocardium (muscular)
Inner layer of heart
Endocardium that forms four valves that separate chambers (purpose of valves assure blood flows in one direction)
AV separates
Atrium from ventricle
AV separation
R tricuspid
Left mitral/bicuspid
Semilunar (tricuspid)
Aortic
Pulmonary
Interventricular septum
Separates L and R sides of Heart (Middle of heart)- Infants born with a hole in the heart (Decreased O2 in blood so lethargic activity-tired)
Conduction System
R
P. T
Atrial depolarization Ventricular
And contraction Q. S. Repolarization
Ventricular And relaxation
Depolarization
And contraction
Conduction started at
SA (Sinoatrial) node -Pacemaker of heart
Basic rate of SA node
70BPM
What can modify SA rate?
ANS by the release of Epinephrine
Causes a contraction
SA Node impulse spreading throughout atrium
After SA node causes contraction by the impulse spreading throughout the atrium
The AV node is then Stimulated