Changes

==Distal Sesamoid (Navicular) Bone==

==Distal Sesamoid (Navicular) Bone==

The distal sesamoid in horses is known as the navicular bone. It is elongated transversely and articulates with both the distal and middle phalanx, lying palmar to the [[Joints and Ligaments - Horse Anatomy#Thoracic Limb|distal interphalangeal joint]]. Dorsally, the articular surface is covered by hyaline cartilage. It articulates with the palmar aspect of the middle phalanx.  The palmar flexor surface is characterised by a prominent '''sagittal ridge''' and is covered by fibrocartilage; providing a smooth surface for the deep digital flexor tendon to glide during weightbearing.  The distal border contains a small articular facet of hyaline cartilage for articulation with the distal phalanx. The distal border contains numerous, synovium-lined, nutrient foraminae.

The distal sesamoid in horses is known as the navicular bone. It is elongated transversely and articulates with both the distal and middle phalanx, lying palmar to the [[Joints and Ligaments - Horse Anatomy#Thoracic Limb|distal interphalangeal joint]]. Dorsally, the articular surface is covered by hyaline cartilage. It articulates with the palmar aspect of the middle phalanx.  The palmar flexor surface is characterised by a prominent '''sagittal ridge''' and is covered by fibrocartilage; providing a smooth surface for the [[Tendons - Horse Anatomy#Thoracic Limb|deep digital flexor tendon ]] to glide during weightbearing.  The distal border contains a small articular facet of hyaline cartilage for articulation with the distal phalanx. The distal border contains numerous, synovium-lined, nutrient foraminae.

===Ligamentous Support===

===Ligamentous Support===