ANATOMY IX A NUTSHELL. 



373 



Levator palpebrae, and the Tensor tarsi (Horner's muscle). 



1. Papillitis is an inflammation of the optic papilla. 



2. Xeuroretinitis is inflammation of the optic nerve and retina. 



3. Retrobulbar Neuritis is an inflammation behind the eye-ball. 



PLATE CXCIII. 



POSTER 0- MEDIAN SlUXUS 



H 



r ^C\ A. ATTHELEVEL OF THE6TH CERVIC/-. NERV- fi00rr 

 ANTERIOR FISSURE 



CENTRAL CANAL 



B.AT THE MID- DORSAL REGION 



POSTERIOR ROOTS 



ANTERIOR ROOTS 



CAT THE CENTRE OF THE LUMBAR ENLARGEMENT 



0. AT THE UPPER PART OF THE CONUc MEDULLARS 



E. AT THE LEVEL OF THE 5TH SACRAL NERVE ROCTi 



L AT THE LEVEL OF THE COCCYGEAL NERVE ROOTS 



Transverse Sections <>k the Cord at Different Li.\ els. 



4. Amblyopia is a dimness of vision from imperfect sensation of the re- 

 tina and without an organic lesion of the eye, 



5. Amaurosis is blindness, especially blindness occuring without apparent 

 lesion of the eve. from disease of the optic nerve, retina, spine or brain. 



