heart: Right Atrium

Question 1

What is the ear like projection on the superior aspect of the right atrium?

Answer 1

Right Auricle

Question 2

What are the prominent parallel ridges located on the interior atrial walls?

Answer 2

Pectinate Muslces

Question 3

What structure marks the end of the pectinate muscles and separates the right atrium from the sinus of the vena cavae?

Answer 3

Crista Terminalis

Question 4

What is the smooth walled area just posterior to the crista terminalis

Answer 4

Sinus of the Vena Cavae

Question 5

What are all of the openings within the sinus of the vena cavae?

Answer 5

1) Superior Vena Cava
2) Inferior Vena Cava
3) Coronary Sinus
4) Anterior Veins of the Right Ventricle

Question 6

what is the depression within the right atrium that is the remnant of the foramen ovale?

Answer 6

Fossa Ovalis

Question 7

What is the sharp boarder of the fossa ovalis?

Answer 7

Limbus Fossa Ovalis

Question 8

Which opening to teh right atrium has no valve present?

Answer 8

Opening to the superior vena cava

Question 9

Which opening tot eh right atrium has a rudimentary valve?

Answer 9

1) Opening to the inferior vena cava

2) Opening to the coronary sinus