Bassett Collection of Stereoscopic Images of Human Anatomy

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KEYWORDS: Bones joints cartilage, Lymphatics, Peripheral nervous system, Pleura, Rib cage, Vasculature.

Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Dissection of breast and anterolateral thoracic wall

Vessels and nerves of first and second left intercostal spaces; Internal thoracic vessels; sternal lymph nodes; sternocostal joint

The costal part of the parietal pleura has been exposed in the anterior portions of the first and second intercostal spaces.

1 .	Sternocleidomastoid muscle (cut off)
2 .	Manubrium of sternum
3 .	Pectoralis major muscle
4 .	Anterior cutaneous branch intercostal nerve I
5 .	Sternocostal ligament (pointer crosses sternal angle)
6 .	Perforating branch internal thoracic artery
7 .	Sternocostal joint III
8 .	Sternocostal ligament (a delicate band in this specimen)
9 .	Thyroid gland (right lobe)
10 .	Trachea
11 .	Left pointer: Thymus Right pointer: Common carotid artery
12 .	Carotid sheath
13 .	Left subclavian artery
14 .	Anterior scalene muscle (cut off)
15 .	Upper pointer: Internal thoracic artery (pointer near origin) Lower pointer: Costoclavicular ligament (cut off)
16 .	Position of sternocostal joint I
17 .	Costal pleura
18 .	External intercostal muscle
19 .	Sternal lymph nodes
20 .	Internal intercostal muscle
21 .	Intercostal nerve II
22 .	Internal thoracic artery and vein
23 .	Rib III
24 .	Anterior intercostal branch internal thoracic artery
25 .	Upper pointer: Costochondral junction Lower pointer: Costal cartilage III (note that a portion of the cartilage has been removed to allow the sternocostal joint to be opened)