Bassett Collection of Stereoscopic Images of Human Anatomy

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Dissection of pericardium and heart in situ

Thymus and related structures, close-up view

Image #116-6

KEYWORDS: Heart, Left heart, Mediastinum, Pericardial sac, Right heart, Thymus.

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Dissection of pericardium and heart in situ

Thymus and related structures, close-up view

The upper portion of the specimen from the preceding view is shown here to illustrate in more detail the relations of the thymus to nearby mediastinal structures.

1 .	Superior trunk brachial plexus
2 .	Phrenic nerve
3 .	Anterior scalene muscle
4 .	Upper pointer: Vagus nerve Lower pointer: Recurrent laryngeal nerve
5 .	Fibrous remnant of cervical portion of thymus
6 .	Right subclavian artery
7 .	Mediastinal pleura (cut and reflected)
8 .	Cardiac plexus
9 .	Right brachiocephalic vein
10 .	Internal thoracic artery (displaced posteriorly)
11 .	Fascia enclosing thymus
12 .	Pericardiacophrenic artery
13 .	Superior vena cava
14 .	Left internal jugular vein
15 .	Left common carotid artery
16 .	Vagus nerve
17 .	Thoracic duct
18 .	Upper pointer: Subclavian artery Lower pointer: Subclavian vein
19 .	Rib I
20 .	Upper pointer: Left brachiocephalic vein Lower pointer: Internal thoracic vein
21 .	Thymus (right lobe)
22 .	Thymic branch internal thoracic artery
23 .	Thymus (left lobe)
24 .	Superior sternopericardial ligament
25 .	Pericardium