GO WITH THE FLOW
Blood enters heart here
Right atrium?
Outermost layer of heart
Epicardium
Cardiac Output stimulates these receptors
Baroreceptors
AKA Electrical pathways
Intranodal pathways
Tissue paper thin membranes LUB-DUB
Heart Valves
Artery carrying deoxygenated blood
Pulmonary artery
Muscular Layer of Heart
Myocardium
RAAS
renin angiotensin aldosterone system
gatekeeper node of heart
AV node
2 valves control blood flow out
Pulmonic and aortic valves?
Largest Artery - connects to the left ventricle
Aorta
Protects the valves/heart chambers-smooth
Endocardium
Increase in intrathoracic pressure results in
Decreased heart rate?
AV node rate
40 to 55
Amount of blood in the ventricle that causes stretch
Preload
Pacemaker of the Heart
Sinoatrial Node
Surface formed by LA/a little by RA
Posterior surface of heart
gentle pressure applied to this artery decreases HR
Carotid artery
(but don’t do it!)
SA node rate
60 to 100
HR x SV
Cardiac Output (CO)
Another name for bicuspid valve
Mitral Valve
Reduces friction in pericardial space
Pericardial fluid
Bearing down hard
Vagal manoeuvre
Automaticity, Excitability and Contractility
Electrical cell properties
Protein released by damaged heart muscle
Troponin