Heart Flashcards
The 4 chambers of the heart
2 atriums (upper)
*right and left
2 ventricles (lower)
*right and left
The right side (chambers) are?
Pulmonary
* receives blood from the body and sends it to the lungs
The left side (chambers) are?
Systemic
* receives blood from lungs and sends it to the body
Circulation of right or the pulmonary side of the heart?
Superior Vena Cava / Inferior Vena Cava
Right Atrium
Tricuspid Valve
Right Ventricle
Pulmonary Valve
Pulmonary Artery
Circulation of left or the systemic side of the heart?
Pulmonary Veins
Left Atrium
Mitral Valve
Left Ventricle
Aortic Valve
Aorta
Heart wall layers
Endocardium
*deepest
Myocardium
*middle layer
Pericardium
*outer protective layer
2 major types of heart valve
Atrioventricular valves
Semilunar valves
4 valves in the heart
(Right)
Tricuspid valve
Pulmonary valve
(Left)
Mitral valve
Aortic valve
2 atrioventricular valves
R - AV valve : Tricuspid valve
L - AV valve : Mitral valve or bicuspid valve
2 semilunar valves
Aortic valve
Pulmonary valve
Heart sounds
Lub
Dub
Branches of right coronary artery
-Right marginal arteries (acute marginal artery)
- Posterior interventricular artery. (in post. IV sulcus)
- Sinoatrial nodal artery.
- Atrioventricular nodal artery.
Branches of left coronary artery
- Left anterior descending
[LAD) or anterior interventricular artery.
(lies in anterior IV sulcus)
*Septal branches.
*Diagonal branches - Left marginal artery.
(Obtuse marginal artery) - Left circumflex artery.
Venous drainage of the heart
Superior vena cava
Anterior cardiac veins
Great cardiac vein
Small cardiac vein
Middle cardiac vein
Coronary sinus
Cardiac cycle events
Systole
Diastole
Cardiac cycle major steps
Mid-to-late diastole
Ventricular systole
Early diastole
Types of blood vessels
Arteries
Capillaries
Veins
Muscle cells in the heart
Atrial cells
Ventricular cells
Components of the Intrinsic Conduction System include:
Sinoatrial node
Atrioventricular node
Atrioventricular bundle
Purkinje fibers
Parts of veins
Venules
Great veins
Larger veins
Parts of arteries
Arterioles
Smaller arteries
Arteries leaves the heart
Heart contains what fibers
Sympathetic fibers
Parasympathetic fibers
2 systems that regulates heart activity
Autonomic nervous system
Intrinsic conduction system
Functions of heart
Generating blood blood pressure
Routing blood
Ensuring one-way blood flow
Regulates blood supply
