I24 OUTLINES OF ANATOMY. 



ARCHES OF THE FOOT, 1242-3-4-5-6-7. 



Longitudinal and transverse. 



A. Longitudinal arch : 



Extent. 

 Two pillars. 



Posterior pillar. 

 Anterior pillar. 

 Inner pillar. 

 Outer. 

 Keystone. 



B. Transverse arch. 

 Uses of the arches. 

 Maintenance of the arch : 



Plantar fascia. 



Calcaneo-scaphoid ligament. 

 Calcaneo-cuboid ligaments: 



Long. Short. 

 Tibialis posticus. 

 Peroneus longus. 

 Tibialis anticus. 



8. THE METATARSO-PHALANGEAL ARTICULATIONS, 293-4. (296-7) 



(a) Metatarso-phalangeal joints of the four outer toes. 



Class DiarlhriKis. Subdivision Ginglymns. 

 Two lateral ligaments. 

 Dorsal ligament. 

 Plantar sesamoid plate. 



(b) Metatarso-phalangeal joints of the great toe. 

 Arteries. Movements. 



9. INTERPHALANGEAL JOINTS, 294. (297) 



Class Diarthrosis. Subdivision Ginglymus. 

 Two lateral. 

 Dorsal ligaments. 

 Glenoid ligament. 

 Arteries. Nerves. Movements. 

 Morphology of ligaments, 294-5. (297-8) 



