13. Heart in Situ

Question 1

Identify 1 -> 2

Answer 1

1. Thymus
2. Brachiocephalic trunk

Question 2

Identify 3

Answer 2

3. Superior vena cava

Question 3

Identify 4

Answer 3

4. Pericardium

Question 4

Identify 5 -> 8

Answer 4

5. Phrenic nerve and pericardiophrenic artery and vein
6. Recurrent laryngeal nerve
7. Arch of aorta
8. Left brachiocephalic vein

Question 5

The heart lies within the ____, encased within a fibroserous sac called the pericardium.

Answer 5

middle mediastinum

Question 6

The heart lies within the middle mediastinum, encased within a fibroserous sac called the ___.

Answer 6

pericardium

Question 7

The heart lies within the middle mediastinum, encased within a fibroserous sac called the pericardium.

→ The outer layer of the pericardium is the (1)____

→ Serous pericardium consists of an (2)____ and a (3)___ that reflects onto the heart as the epicardium.

Answer 7

1. fibrous pericardium
2. underlying parietal layer lining the inner aspect of the fibrous pericardium
3. visceral layer

Question 8

The heart lies within the middle mediastinum, encased within a fibroserous sac called the pericardium.

→ The outer layer of the pericardium is the fibrous pericardium, a strong, fibrous layer that blends with the roots of the great vessels.

→ Serous pericardium consists of an underlying parietal layer lining the inner aspect of the fibrous pericardium and a visceral layer that reflects onto the heart as the ___.

Answer 8

epicardium

Question 9

The pericardial cavity is a ___ space between the 2 serous layers and contains a thin film of serous lubricating fluid to reduce friction of the beating heart.

Answer 9

potential