Cardio Anatomy Basics Flashcards
Function of cardiovascular system
pump blood from heart to both lungs and to the systemic circulation allowing for gas exchange and nutrient supply to all parts of the body
Borders of the heart
lungs, diaphragm, great vessels, esophagus/aorta
Innervation of heart
vagus
sympathetic chain
Artery/Vein
Artery
higher elasticity (except for endothelium) no valves higher pressure lower volume flow AWAY from heart Tunica media is thicker
Artery/Vein
Vein
higher plasticity have valves lower pressure higher volume flow towards heart (V = Very close to heart) adventitia (fibrous CT layer) dominates
Mediastinum
space between pleural sacs of the lungs
4 region system vs 3 region system of mediastinum
4 - superior, anterior, middle, posterior mediastinum
3 - pre vascular, visceral, paravertebral
Which view provides vision of majority of surface structures, including coronary circulation and the great vessels?
anterior and posterior views
Aorta
to systemic circulation
pulmonary artery
to lungs
pulmonary veins
to left atrium
superior vena cava
to right atrium
inferior vena cava
to right atrium
Main branches from coronary artery
left coronary artery
right coronary artery
both brach from aorta anteriorly
right coronary artery branches
SA nodal branch
right marginal artery
posterior interventricular artery
AV nodal branch
right coronary artery supplies
SA node
AV node
right ventricle
right atria
left coronary artery branches
left anterior descending artery
circumflex artery
left coronary artery supplies
left ventricle
left atria
anterior 2/3 of inter-ventricular septum (AV bundle)
occasionally the SA node
Primary coronary veins
great cardiac vein
middle cardiac vein
small cardiac vein
coronary sinus
accessory coronary veins
left marginal vein
left posterior interventricular
oblique vein of left atrium
all coronary veins drain into the ____ which drains into ____
coronary sinus; right atria
Atrioventricular valves (S1)
mitral - left
tricuspid - right
Semi-lunar valves (S2)
aortic - left
pulmonic - right
3 types of echocardiogram
transthoracic echo (TTE) transeshophageal echo (TEE) intracardiac echo (ICE)
what is the most elastic artery
the aorta