Fig. 196. Dorsum of (Left) Foot, with Tendon-sheaths. Arteries and 

 Bones projected on to the Skin. 



This is a reconstructed figure: The outlines are taken from a young individual ; 

 the bones are of a corresponding size; moreover in comparison with several 

 other specimens the position of the Arteries and Tendon-sheaths have been 



relatively determined. 



This figure (cf. Fig. 97) has been constructed to shew the relation of 

 Arteries and Tendon-sheaths to Bones and Joints. In the Hand furrows and folds 

 indicate the position of deeper structures, but in the Foot bony prominences are 

 to be taken as the reliable points. Along the inner border, the Tubercle of the 

 Scaphoid, on the outer side the Tuberosity of the 5th Metatarsal Bone are plainly 

 evident. The Tarso-Metatarsal Articulation (LlSFRANC's Joint) is determined thus: 

 Immediately proximal to the tuberosity of the 5th Metatarsal Bone is the one point, 

 the other point lies 1 '/2 inches distal to the tubercle of the Scaphoid. A curved 

 line joining these 2 points indicates the line of the joint. (Cf. Fig. 20.) 



The Mid-Tarsal Joint is determined by connecting on the inner border 

 a point V^rd inch proximal to the Tubercle of the Scaphoid, on the outer border 

 V5 inch proximal to the Tuberosity of the 5th Metatarsal. The figure shews the 

 relations which the extremities of the Tendon-sheaths bear to these lines. The 

 joint space can be made out directly in most cases by feeling at Vs^ds to Vsth 

 jnch above the tip of the Inner Malleolus the Anterior Border of the Articular 

 Surface of the Tibia where it is only covered by skin and tendons. (For certain 

 Synovial Bursae see Fig. 197.) 



Frequently a Bursa is placed between a tendon and its insertion into the 

 bone where it acts as a cushion when pressed against the bone by the opposing 

 muscles. Consider, from this point of view, the bursa over the Internal Cuneiform 

 Bone, which lies under the Anterior Tibial Muscle close to its point of insertion 

 into the Internal Cuneiform and the ist Metatarsal Bones. 



