842 



THE NERVOUS SYSTEM OF THE OX 



the lateral border of the flexor tendons, gives a branch to the suspensory ligament 

 and to the lateral small digit, and continues along the lateral face of the lateral 

 digit as the lateral plantar digital nerve (N. dig. plant, lat. dig. IV). 



The sympathetic system closely resembles that of the horse in its general 

 arrangement, and only a few differential features will receive attention. The 

 anterior cervical ganglion is closer to the cranial base and is thicker than in the 

 horse; its branches to the carotid and cavernous plexuses are large, and no con- 

 nection is formed with the spinal accessory nerve. The cervical tnmk is smaller 



Superficial -peroneal- 

 nerve ■ 

 Deep peroneal nerve . 

 Saphenous nerve 



Tibial nerve 



Medial 

 plantar , 

 nerve 



- Branch of com- 

 mon peroneal 

 nerve 



Lateral plantar 

 nerve 



"' — Deep branch 



Fig. 669. — Nerves of Distal P.utT of Right Hind 



Limb of Ox; Dorsal View (Schematic). 



p. Dorsal digital nerves. 



Fig. 670. — Nerves of Distal Part of Right HinD' 



Limb of Ox; Plantar View (Schematic). 



p, Plantar digital nerves. 



than in the horse, and arises by two or three bundles from the anterior cervical 

 ganglion behind its middle. The posterior cervical ganglion is distinctly separable 

 from the first thoracic; the latter is large. There are thirteen pairs of thoracic 

 ganglia. The great splanchnic nerve begins at the fifth or sixth thoracic ganglion 

 and receives branches from the succeeding ones; it is commonly difficult to dis- 

 tinguish clearly from the thoracic trunk. The small splanchnic nerve is repre- 

 sented apparently by filaments which go from the first lumbar ganglion to the 

 adrenal plexus and the cceliac ganglion. The coeliac ganglion is rounded and lies 

 on the cceliac artery. The anterior mesenteric ganglion is longer and is closely 



