Interior Right Atrium

Question 1

_____ Receives Venous Blood from SVC , IVC and coronary sinus

Answer 1

Right Atrium

Question 2

____ is the conical muscular pouch projecting from right atrium

Answer 2

Right Auricle

Question 3

_____ increases capacity of the atrium

Answer 3

Right Auricle

Question 4

The Interior of Right Atrium is made up of 3 parts. Name them
1._____
2._____
3._____

Answer 4

1. Smooth posterior
2. Rough anterior
3. Interatrial Septum

Question 5

The Separation between the Smooth posterior and Rough anterior is done externally by _____

Answer 5

Sulcus terminalis
(Terminal groove)

Question 6

The Separation between the Smooth posterior and Rough anterior is done internally by_______

Answer 6

Crista terminalis

Question 7

The Smooth posterior part of the interior right atrium is developed from______

Answer 7

• Sinus Venous of the Heart tube
• Opening of SVC, IVC, coronary sinus

Question 8

The Rough anterior part of the interior right atrium is developed from _____

Answer 8

Pectinate Muscle
(L. Musculi Pectinate)

Question 9

_____separates the right and left atrium

Answer 9

Interatrial septum

Question 10

Describe the Interatrial Septum

Answer 10

• An oval depression
  -the oval fossa (L. fossa ovalis),
  which is a remnant of the oval foramen (L. foramen ovale) and its valve in the fetus.

(THIS IS VERY IMPORTANT)

Question 11

______ is a remnant of the Oval fossa (L. fossa ovalis)

Answer 11

Oval foramen (L. foramen ovale)