Heart Flashcards
Valve from Left Atrium to Left Ventricle
Mitral Valve
Valve from Right Atrium to Right Ventricle
Tricuspid Valve
Main structures that feed into the Right Atrium
Superior and Inferior Venae Cavae
Main structure that comes out of the Right Ventricle
Pulmonary Trunk
Main structures that feeds into the Left Atrium
Pulmonary veins
Main structure that emerges from the Left Ventricle
The Aorta
Where does the coronary sinus empty?
Right Atrium
Which chamber is most anterior?
Right Ventricle
Which chamber is most posterior?
Left Atrium
Name the branches of the right coronary artery
atrial, sinoatrial nodal, atrioventricular nodal, right marginal, posterior interventricular
Name the branches of the left coronary artery
anterior interventricular and circumflex
What floods into the coronary sinus?
Great cardiac vein, middle cardiac vein, and small cardiac vein.
Three layers of the pericardium
Fibrous and Serous (parietal and visceral)
The external groove circling the heart; separates the atria from the ventricles
Coronary sulcus
Grooves that separate the two ventricles
Anterior and posterior interventricular sulci
Contains the anterior interventricular artery and the great cardiac vein
Anterior interventricular sulcus
Contains the posterior interventricular artery and the middle cardiac vein
Posterior interventricular sulcus
Where does the right coronary artery go?
Right aortic sinus, passes between right auricle and pulmonary trunk, then descends in coronary sulcus between right atrium and ventricle.
Where is the atrial branch of the right coronary artery?
The groove between the right auricle and ascending aorta
Where does the sinoatrial nodal branch of the right coronary artery go?
Passes posteriorly around superior vena cava to supply sinoatrial node
Where is the atrioventricular nodal artery?
Distal end of right coronary artery as it forms the posterior interventricular artery. Supplies AV node.
Where is the right marginal branch?
It’s given off as the right coronary artery approaches the inferior margin. It continues along the inferior margin to the apex.
Where is the Posterior Interventricular artery?
Diaphragmatic surface of the heart.
Where does the left coronary artery go?
Originates from left sinus and enters left aspect of coronary sulcus. Quickly divides.
Where does the anterior interventricular artery go?
Descends in anterior interventricular sulcus and supplies the anterior left ventricular wall, the anterior 2/3s of the interventricular septum, and the Bundle of His.
Where does the circumflex artery go?
Courses around left border of the heart.
Where does the Great Cardiac vein go?
Begins at apex, ascends in anterior interventricular sulcus. When it reaches the coronary sulcus, it banks left and continues onto the base of the heart.
Where does the middle cardiac vein go?
Begins near apex, ascends in posterior interventricular sulcus.
Where does the small cardiac vein go?
Begins in lower anterior section of coronary sulcus between the right atrium and ventricle, enters the coronary sinus at the atrial end.
What travels with the right coronary artery?
Small cardiac vein
What travels with the posterior interventricular artery?
Middle cardiac vein
What does the great cardiac vein travel with?
First the anterior interventricular artery, then the circumflex artery.
What travels with the small cardiac vein?
The right coronary artery
What travels with the middle cardiac vein?
Posterior interventricular artery
Where’s the transverse sinus?
Behind the pulmonary trunk and the aorta
Where’s the oblique sinus?
Behind the apex
What sits posterior to the left atrium?
The esophagus
Which coronary artery is considered dominant?
Whichever gives off the posterior interventricular artery
Pulmonary semilunar valve
Valve separating pulmonary trunk from right ventricle
Aortic semilunar valve
Valve separating aorta from left ventricle
Cusps of aortic semilunar valve
Left, right, and posterior
Cusps of pulmonary semilunar valve
Left, right, and anterior
Muscles within atria; makes the walls look rough
Pectinate muscles
Structure that separates sinus venarum from pectinate muscles in the right atrium
Terminal crest
Depressed area in the right atrium
Fossa ovalis
Elevated superior margin of the fossa ovalis
Limbus
Ventricular version of papillary muscles
Trebeculae carnae
Structure that provides a shortcut for electrical impulses within the right ventricle
Septamarginal trebecula (moderator band)
Muscles involved in closing of valves in ventricles
Papillary muscles
Thin white structures off of the papillary muscles
Chordae tendinae
