Changes

==Proximal Phalanx==

==Proximal Phalanx==

Sensory innervation to the navicular bone is supplied by the '''digital nerves'''. Nerves run distally through the collateral sesamoidean ligaments and within the distal sesamoidean (impar) ligament. Sensory innervation to the navicular bursa is also via digital nerves.

Sensory innervation to the navicular bone is supplied by the '''digital nerves'''. Nerves run distally through the collateral sesamoidean ligaments and within the distal sesamoidean (impar) ligament. Sensory innervation to the navicular bursa is also via digital nerves.

===Vasculature===

===[[Limb Vasculature - Horse Anatomy|Vasculature]]===

Arterial supply to the navicular bone is via anastomoses between '''medial and lateral palmar digital arteries'''. Proximally, a '''transverse plexus''' joins these arteries and gives rise to several small arteries that enter the formania of the navicular bone along its proximal border.  Distally, branches connecting the medial and lateral palmar digital arteries form a '''distal navicular plexus'''; which give off additional small arteries that enter foramina along the distal border. These digital arteries supply most of the blood to the navicular bone.  Anastamoses between the proximal and distal blood supplies occurs in the adult horse.  

Arterial supply to the navicular bone is via anastomoses between '''medial and lateral palmar digital arteries'''. Proximally, a '''transverse plexus''' joins these arteries and gives rise to several small arteries that enter the formania of the navicular bone along its proximal border.  Distally, branches connecting the medial and lateral palmar digital arteries form a '''distal navicular plexus'''; which give off additional small arteries that enter foramina along the distal border. These digital arteries supply most of the blood to the navicular bone.  Anastamoses between the proximal and distal blood supplies occurs in the adult horse.  

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[[Category:To Do - AP Review]]

 

[[Category:Horse Anatomy]]

 

[[Category:Musculoskeletal System - Horse Anatomy]]