Heart Anatomy

right coronary artery

A

left coronary artery

B

circumflex artery

C

anterior interventricular artery

D

great cardiac vein

E

middle cardiac vein

A

posterior interventricular artery

B

marginal artery

F

pulmonic semilunar valve

A

tricuspid valve

B

mitral valve

C

papillary muscles

E

chordae tendineae

D

right atrium

A

left atrium

B

right ventricle

C

left ventricle

D

coronary sinus

What is it?

anterior cardiac vein

Identify

auricle of right atrium

Identify A

auricle of left atrium

Identify B

fossa ovalis

Identify

trabeculae carneae

Identify

pectinate muscles

Identify

aortic semilunar valve

Identify

conus arteriosus

Identify

prevent suction that would occur with a flat surface membrane in the ventricles, which would impair the ability of the heart to pump efficiently.

trabeculae carneae function

increase power of contraction of the atria without the need to increase muscle mass a lot

pectinate muscle function

remnant of the fetal foramen ovale that closes after birth

What is the fossa ovalis?

remnant of the fetal ductus arteriosus that closes after birth

What is the ligamentum arteriosum?

prevents backflow of blood from left ventricle into the left atrium

mitral valve function

prevents backflow of blood from pulmonary trunk into the right ventricle

pulmonic SL valve function

moderator band

What structure delivers the stimulus for contraction to the papillary muscles?

prevents backflow of blood from right ventricle into the right atrium

tricuspid valve function

prevents backflow of blood from aorta into the left ventricle

aortic SL valve function

attach to the AV valves in the heart and prevent them from inverting

chordae tendineae function

contraction pulls on the chordae tendineae, so the AV valves stay closed

papillary muscle function

increase the volume of the atrial chambers

function of the auricles in the heart

aortic semilunar valve

Identify.