Bassett Collection of Stereoscopic Images of Human Anatomy
Pectoral region and axilla
Left serratus anterior muscle, anterolateral view
Image #91-5
KEYWORDS: Pectoral region, Upper arm.
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Pectoral region and axilla
Left serratus anterior muscle, anterolateral view
The roots (1) of the brachial plexus have been divided and the subclavian vessels (2,3) cut off. The shoulder and arm have been pulled away from the thorax in order to expose the entire extent of the serratus anterior muscle. The axillary artery and infraclavicular part of the brachial plexus have been retracted from their normal positions.
- Upper pointer: Middle scalene muscle Lower pointer: Brachial plexus (cut across through roots)
- Upper pointer: Subclavian artery Lower pointer: Anterior scalene muscle
- Subclavian vein
- Rib I
- Intercostobrachial nerve (cut off)
- External intercostal muscle
- Pectoralis minor muscle (area of origin)
- Fibers of origin of pectoralis major muscle
- Lateral cutaneous branch of intercostal nerve V
- Rib V
- Slip of origin of external abdominal oblique muscle
- Branch of cervical nerve V to serratus anterior muscle
- Transverse artery and vein of scapula
- Levator muscle of scapula
- Clavicle (cut off)
- Coracoid process of scapula
- Acromion
- Joint capsule of humerus
- Serratus anterior muscle (upper part)
- Long thoracic nerve
- Axillary artery (displaced laterally with brachial plexus)
- Serratus anterior muscle (middle part)
- Body of humerus
- Upper pointer: Subscapularis muscle Lower pointer: Subscapular artery
- Teres major muscle
- Area of insertion of deltoid muscle
- Triceps brachii muscle
- Latissimus dorsi muscle (detached from origin and retracted upward)
- Serratus anterior muscle (lower part)
- Brachialis muscle
- Biceps brachii muscle
- Cephalic vein