112 



THE SKELETON OF THE UPPER EXTREMITY 



Great tuberosity 

 Tuberculum majus- 



Bicipital groove 



Sulcus intertubercularis - 



Outer margin of bicipital 



groove (pectoral ridge) 



Crista tuberculi majoris 



Outer or antero-external 



surface 

 Facies anterior lateralis 



Deltoid eminence 

 Tuberositas deltoidea 





Head of the humerus 

 , Caput humeri 



Head of the humerus 

 Caput humeri 



,- Anatomical neck 



Collum anatomicum 



I Small tuberosity 



Tuberculum minus 



Inner margin of the bicipital groove 

 Crista tuberculi minoris 



Great tuberosity 



I Tuberculum majus 



.Head 



Caput 



Small 



tuberosity 



Tuberculum 



minus 



FIG. 248. PROXIMAL (UPPER) 

 EXTREMITY OF THE RIGHT 

 HUMERUS SEEN FROM ABOVE. 



Anatomical neck 



Collum anatomicum 



. Great tuberosity 



Tuberculum majus 



Surgical neck 



Collum chirurgicum 



Posterior surface 

 Facies posterior 



.Nutrient foramen 



Foramen nutricium 



Deltoid eminence 

 Tuberositas deltoidea 



Nutrient foramen 

 Foramen nutricium 



Inner or antero-internal 



surface 

 Facies anterior medialis 



Outer border - 



Margo lateralis 



Capitellum 



Capitulum 



Olecranon fossa 

 Fossa olecrani 



Trochlea 



Trochlea humeri 



Internal condyle 



Epicondylus medialis 



FIG. 249.- DISTAL (LOWER) 

 EXTREMITY OF THE RIGHT 

 HUMERUS SEEN FROM BELOW. 



Spiral groove 



Sulcus nervi radialis 



Radial fossa 

 Fossa radialis " 



External condyle A 

 Epicondylus 

 lateralis 



Capitellum /' 



Capitulum humeri ' 



Inner border 



Margo medialis 



Coronoid fossa 

 .- Fossa coronoidea 

 Internal condyle 

 f" Epicondylus medialis 



. Internal condyle 



'2 Epicondylus 



Trochlea medialis 



Trochlea humeri 



//Jm 



Olecranon fosaa 

 - Fossa olecrani 



V. 



External condyle 



Epicondylus 



lateralis 



FIG. 246. THE RIGHT HUMERUS 

 SEEN FROM BEFORE. 



_. ' Trochlea 



Trochlea humeri 

 Groove of the ulnar nerve' 

 Sulcus nervi ulnaris 



FIG. 247. THE RIGHT HUMERUS 

 SEEN FROM BEHIND. 



Humerus The humerus. 



