Pericardial Sinuses

Question 1

Pericardial Sinuses is

Answer 1

The lines of reflection between visceral layer and parietal layer of serous pericardium form two pericardial sinuses

Question 2

type of Pericardial Sinuses

Answer 2

the transverse pericardial sinus

the oblique pericardial sinus

Question 3

Transverse Pericardial Sinus Lies anterior to the

Answer 3

the superior vena cava,

Question 4

Transverse Pericardial Sinus lies posterior to

Answer 4

the ascending aorta

Question 5

Transverse Pericardial Sinus lies superior to

Answer 5

the left atrium.

Question 6

Oblique Pericardial Sinus Lies posterior to

Answer 6

the heart in the pericardial sac.

Question 7

Clinical Significance of Transverse Pericardial Sinus

Answer 7

the surgeon can pass a finger through the
transverse sinus posterior to the ascending aorta and pulmonary trunk to make
ligation and clamp around these large vessels to stop blood circulation.
In fact, you are separating those arteries from vein (Superior Vena Cava (SVC)).

Question 8

Oblique Pericardial Sinus acts as

Answer 8

a bursa behind left atrium to allow pulsation

Question 9

Oblique Pericardial Sinus is located posterior to

Answer 9

left atrium.

Question 10

Oblique Pericardial Sinus is

Answer 10

a pericardium reflected on left atrium, IVC, right and left pulmonary veins.

Question 11

Nerve Supply of Visceral layer of Serous Pericardium

Answer 11

By Sympathetic trunk and vagus nerves

Question 12

Nerve Supply of Fibrous Pericardium and Parietal layer of serous Pericardium

Answer 12

By Phrenic nerves (C3–C5), primary source of sensory fibers.

Question 13

pain” related to a pericardial problem may be referred to the

Answer 13

supraclavicular region of the shoulder or lateral neck area dermatomes for
spinal cord segments C3, C4, and C5