THE AR'UCULATIONS OF THE UPPER LIMB 



211 



The radius - 



Anterior or palmar ligament of the wrist-joint 

 Lig. radiocarpeum volare 



Tendon of the flexor carpi radialis muscle 



Anterior annular ligament of the wrist 

 Lig. carpi transversum 



Ridge or tuberosity of the trapezium 

 Capsule of the carpometacarpal joint of the thumb 



Capsula articulatiunis c;irpum-tacarpe;e pollicis 



Tendon of the flexor carpi radialis muscle 



Anterior or palmar proximal 

 intermetacarpal ligament 



Lie. basium volare 



Sesamoicl bones f - 

 Ossa sesamoidea\ --_, 



Interphalangeal articulation 

 of the thumb 



Articulatio pollicis 



Anterior or palmar metacarpo- 



phalangeal ligaments 1 



Ligg. accessoria volaria 



Proximal interphalangeal articulation 



of the index finger 

 Articulatio proximalis digiti II. 



Lateral ligaments"!. 

 Ligg. collateralia / 



Interosseous membrane or ligament 

 of the forearm 



Membrana interossea antibrachii 



-The ulna 



Capsule of the inferior radio-ulnar 

 articulation Capsula articulationis 



radio-ulnaris distalis 

 Tendon of the flexor carpi ulnaris muscle 



Internal lateral ligament of the wrist-joint 



Lig. collalerale carpi ulnare 



Pisiform bone 



Os pisiforme 



Flsi-uncinate ligament Lig. pisohamatum 



Pisimetacarpal ligament 



Lig. pisometacarpeum 



Onciform bone- Os hamatum 

 Anterior or palmar carpometacarpal 



ligament Lig. carpometacarpeum volare 



Anterior or palmar proximal intermeta- 

 carpal ligament 

 Lig. basium volare 



Capsule of themetacarpo-phalangeal 

 articulation of the little finger 



Capsula articulationis 

 metacarpo-phalangeae digiti V. 



Sesamoid bone 

 Os sesamoideum 



Transverse metacarpal ligament 

 -~_; (Anterior or palmar distal 

 intermetacarpal ligaments) 

 Ligg. capitulorum transversa 



Internal lateral ligaments 



of the interphalangeal 



articulations of the little 



finger 



Ligg. collateralia ulnaria 

 articulationum digiti V. 



Distal interphalangeal articulation ' 



of the index finger 

 Articulatio distalis digiti II. 



Capsule of the distal interphalangeal ' 

 articulation of the middle finger 



Capsula articulationis distalis digiti III. 



1 These are fibrous plates rather than ligaments properly so called, and, being thickened into fibrocartilage at each side along their attach* 

 ments to the lateral metacarpo-phalangeal ligaments, they are grooved on the palmar surfaces for the flexor tendon. Macalister calls them 

 K/rnoiil ligaments. It is in the lateral librocartilaginous portions of these plates that the sesamoid bones of the metacarpo-phalangeal joint of 

 the thumb, and occasionally of some of the other lingers, are developed. TR. 



FIG. 444. THE ANTERIOR OR PALMAR LIGAMENTS OF THE WRIST AND HAND : THE SUPERFICIAL LIGAMENTS 

 OF THE CARPUS AND THE METACARPUS; THE CAPSULES AND LIGAMENTS OF THE METACARPO-PHALANGEAL 

 AND THE INTKRPHAI.ANGEAL ARTICULATIONS. LlGAMENTUM CARH TRANSVERSUM, ANTERIOR ANNULAR 

 LIGAMENT OK THE WRIST ; CANALIS CARPI, CANAL OF THE CARPUS BENEATH THE ANTERIOR ANNULAR 

 LIGAMENT (FOR THE TRANSMISSION OF THE FLEXOR TFNDONS). RELATIONS OF THE TENDONS OF THE 

 FLEXOR CARPI ULNARIS AND FLEXOR CARPI RADIALIS MUSCLE TO THE ANTERIOR OR PALMAR CARPAL 

 AND METACARPAL LIGAMENTS. LIGAMENTA ACCESSORIA VOLARIA, ANTERIOR OR PALMAR METACARPO- 

 PHALANGEAL LIGAMENTS ; LIGAMENTA CAPITULORUM TRANSVERSA, TRANSVERSE METACARPAL LIGAMENT 

 (ANTERIOR OR PALMAR DISTAL INTERMETACARPAL LIGAMENTS). OSSA SESAMOIDEA, SESAMOID BONES. 



In the interphalangeal articulations of the inriex finger the anterior portions of the capsules between the lateral ligaments 

 have been entirely cut away ; in those of the middle finger the capsules have been divided transversely across the middle 

 of the joint and the divided halves of the anterior ligament turned upwards and downwards ; in the interphalangeal articu- 

 lation of the thum'> the anterior portion of the capsule has been divided along its attachment to the distal phalanx and 

 the lateral ligaments, and, together with the sesamoid bones embedded in it on each side, has been turned upwards ; in 

 the remaining joints the capsule has been left intact. 



Articulationes manus et digitorum Articulations of the hand and fingers. 



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