Heart Flashcards
Where does the Superior Vena Cava drain into?
Right Atrium
Where does the Right Marginal Artery originate from?
Right Coronary Artery
What area/structure does the Anterior Interventricular Artery supply?
Anterior 2/3 of Inteventricular Septum
Anterior Ventricular Walls
Where does Superior Vena Cava come from?
Right and Left Brachiocephalic Veins
What is a branch/terminal branch of the Pulmonary Trunk?
Right and Left Pulmonary Arteries
What artery travels through the Anterior Interventricular Sulcus?
Anterior Interventricular Artery
What artery travels through Atrioventricular Sulcus?
Right Coronary Artery
What artery does the Anterior Interventricular Artery anastamose with?
Posterior Interventricular Artery
What is a branch/terminal branch of the Ascending Aorta?
Right and Left Coronary Arteries
Right Brachiocephalic Trunk
Left Common Carotid Artery
Left Subclavian Artery
What area does the SVC drain?
Head
Neck
Upper Limbs
What area/structure does the Pulmonary Trunk supply?
Lungs
Where does the Ascending Aorta originate from?
Left Ventricle
During fetal development, what is the purpose of the Ligamentum Arteriosum?
Shunts blood from the Pulmonary trunk to the Aorta, to bypass the lungs.
What area does the Inferior Vena Cava drain?
Lower body.
(Below the diaphragm.)
Where does the Pulmonary Veins drain into?
Left Atrium
What is a direct branch of the Aortic Arch?
Brachiocephalic Trunk
Left Common Carotid Artery
Left Subclavian Artery
Where does the Superior Vena Cava drain into?
Right Atrium
What is the embryological origin of ligamentum arteriosum?
Ductus Arteriosus
Where does the coronary sinus come from?
Great Cardiac Vein
Middle Cardiac Vein
Small Cardiac Vein
What area/structure does the pulmonary artery supply?
Lungs
Where does the pulmonary arteries originate from?
Pulmonary Trunk / Right Ventricle
Where does the IVC drain into?
Right Atrium
What area does the posterior interventricular artery supply?
Posterior 1/3 of the interventricular septum
Where does the middle cardiac vein come from?
Posterior cardiac muscles of the left and right ventricles.
Where does the middle cardiac vein drain into?
Coronary Sinus
Where does the right and left coronary arteries originate from?
Root of Aorta
What area/structure does the right coronary artery supply?
Right Atrium
Right Ventricle
Posterior portion of the Interventricular Septum
What artery does the posterior interventricular artery anastamose with?
Anterior Interventricular Artery
What area/structure does the Left Marginal Artery supply?
Muscular wall of the Left Ventricle
What area/structure does the left coronary artery supply?
Left Atrium
Left Ventricle
Part of Right Ventricle
Anterior 2/3 of the Interventricular Septum
Atrioventricular Bundle
Which is a branch/terminal branch of the right coronary artery?
Right Marginal Artery
Posterior Interventricular Artery
Where does the Left Marginal Artery originate from?
Left Circumflex Artery
Where does the Anterior Interventricular Artery originate from?
Left Coronary Artery
Where does the left coronary artery originate from?
Root of Aorta
When does the right aortic cusp fill with blood?
When Aortic pressure is greater than Ventricular pressure.
What muscles cause the left atrioventricular valve to close?
Papillary Muscle Contraction.
Which artery does the circumflex artery anastomose with?
Right Coronary Artery
During what stage of the cardiac cycle is the aortic valve open?
Ventricular Systole (contraction)
What area/structure does the right marginal artery supply?
Anterior and Inferior surface of the right ventricle.
What is the function of the anterior papillary muscle during ventricular systole?
Close the AV valve to prevent back-flow of blood into the atria.
What directly innervates the Trabeculae Carnae?
Purkinje Fibers
What is the function of the auricles?
Expand and increase the volume of atria to pump more blood during atrial systole.
Which arteries directly supply the interventricular septum?
Anterior and Posterior Interventricular Arteries
What is the function of Chordae Tendinae?
Anchor the leaflets of the AV valves to the papillary muscles to tightly close the valves.
What two structures does the Right AV Valve (tricuspid valve) seperate?
Right Atrium and Right Ventricle
What two chambers does the interatrial septum seperate?
Left and Right Atria
During what phase of the cardiac cycle does the Pectinate Muscles contract?
Atrial Systole
In which chamber can we find the approximate position of the SA node?
Right Atrium
In the Interatrial Septum
In which chamber is the approximate position of the AV node found?
Right Atrium
In the interatrial septum
Which chamber is the opening of the coronary sinus located in?
Right Ventricle
-Superior to the IVC opening
-Posterior to the AV valve
-Anterior/Inferior to the Fossa Ovalis
What two structures does Crista Terminalis seperate?
Pectinate Surface and Sinus Venarum
What is Sinus Venarum?
The smooth surface lining the majority of the atrium.
What is the embryological origin of Fossa Ovalis?
Foramen Ovale
Where is blood from the Left Ventricle sent during contraction?
Aorta
What innervates the Anterolateral Papillary Muscle?
Purkinje Fibers
What vessels drain into the Right Atrium?
Inferior Vena Cava
Superior Vena Cava
Coronary Sinus
What vessels drain into the Left Atrium?
Left and Right Pulmonary Veins
What would happen if Cordae Tendinae was damaged?
Back-flow of blood from ventricle to atria during ventricular contraction.
Which two chambers does the Left AV Valve seperate?
Left Atrium and Left Ventricle
What is the function of the Posteromedial Papillary Muscle during ventricular systole?
Close the AV valve.
During what phase of the cardiac cycle does Pectinate muscle contract?
Atrial Systole
During what phase of the cardiac cycle does the Trabeculae Carneae contract?
Ventricular systole.
What directly innervates the Septal Papillary Muscle?
Purkinje Fibers
What would happen if Chordae Tendineae was damaged?
Back-flow of blood from ventricle to atria during ventricular systole.
