Pericardial Sac

Question 1

Pleural Cavities

Answer 1

• Parietal Pleural: lines the inside of the thoracic wall
• Visceral Pleural: outer surface of the lungs
• Medially the parietal plural is adherent to the parietal pericardium (called the mediastinal pleura)

Question 2

Root of the lung

Answer 2

Attachment of the lungs to the mediastinum

• it’s at this point that the visceral pleura is continuous with the parietal (mediastinal) pleura
• contains the bronchi, pulmonary arteries, and pulmonary veins

Question 3

Phrenic Nerve

Answer 3

Located between the mediastinal pleura and parietal pericardium

Question 4

Pericardial Sac

Answer 4

2 layers:

• outer layer of parietal pericardium is thick and is referred to as the fibrous pericardium
• inner layer is smooth and called the parietal layer of serous pericardium

Question 5

Epicardium (visceral layer of serous pericardium)

Answer 5

On the surface of the heart

Question 6

Great Vessels

Answer 6

Ascending Aorta
Superior Vena Cava
Pulmonary Trunk

Question 7

Transverse pericardial Sinus

Answer 7

Space between the arterial and venous limbs of the heart at the base.

• slide your finger behind the ascending aorta and pulmonary trunk but in front of the superior vena cava and pulmonary veins.
• area is often lighted during open heart surgery to control blood flow out of the ventricles

Question 8

Oblique Pericardial Sinus

Answer 8

Slide your fingers up behind the heart between the posterior aspect of the left ventricle of the heart and the posterior wall of the pericardial sac

• blind-ended pericardial lined pace between the four pulmonary veins
• formed by a reflection of the serous visceral pericardium off the surface of the heart, which becomes the serious parietal pericardium on the inside of the fibrous pericardial sac

Question 9

Anterior Interventricular Groove

Answer 9

Separates the ventricles of the heart

-houses the great cardiac vein and the anterior Interventricular artery (left anterior descending artery)