heart anatomy

most superficial layer of the heart

fibrous pericardium

innermost layer of the heart wall layer

visceral pericardium (epicardium)

layer one above the epicardium

pericardial cavity

thick sunset pink muscle around the heart deep to the epicardium

myocardium

thin layer deep to the myocardium

endocardium

superior chambers of the heart

right and left atria

layers that cover the left an right atria

right and left auricles

inferior portions of the heart

right and left ventricles

point of the heart

apex

width of the bottom of triangle

base

anterior veins running medially down groove heart, angled away from apex

anterior interventricular sulcus

posterior veins running medially down groove of the heart, angled toward apex

posterior interventricular sulcus

posterior depression that holds coronary sinus

atrioventricular groove (coronary sulcus)

right deep wall covering pulmonary trunk

interatrial septum

depression in the right atrium, lateral to interatrial septum

fossa ovalis

roles/ridges on the wall of right atrium

pectinate muscles

middle section of trident

interventricular septum

spiders web in both left and right ventricle

chordae tendineae

anchors for spiders web in both ventricles

papillary muscles

ridges on the walls of both ventricles

trabeculae carneae

both webs

atrioventricular valves

in right atrium, solid white part of spider web

tricuspid valves

in left atrium, solid white part of spider web

bicuspid valve

bug eggs inferior to pulmonary trunk

semilunar valves

underneath the pulmonary trunk to the left

pulmonary semilunar valves

in left atrium diagonally to bicuspid valve first one

aortic semilunar valve

above right auricle most lateral tube

superior vena cava

posterior tube projecting down

inferior vena cava

left lateral tube above semilunar valves

pulmonary trunk

Horizontal tubes extending from pulmonary trunk and in middle of three

right and left pulmonary arteries

middle tube, distal point

ascending aorta

highest point on ridge for aorta

Aortic arch

posterior and inferior to pulmonary arteries, two on each side

pulmonary veins

In between aortic arch and pulmonary trunk, small pink thing

ligamentum arteriosum

branches inferior to inferior vena cava and inferior to right auricle

right coronary artery

branch extending down from the right coronary artery

right marginal artery

posterior artery coming from the right

posterior interventricular artery

potruding hole at the bottom left of the aorta

left coronary artery

red artery running down middle front of heart

anterior interventricular artery

red line underneath the left auricle and wraps behind heart

circumflex artery

anterior blue vein in anterior interventricular sulcus

great cardiac vein

blue vein in the back left

posterior vein of the left ventricle

posterior blue vein in the middle of heart

middle cardiac vein

anterior lateral blue vein on the right

small cardiac vein

posterior horizontal vein

coronary sinus

coronary circulation