170 



MAMMALIAN ANATOMY 



Nomenclature. Occipitium or occiput, the Latin for the back 

 part of the head, is derived from ob, against, and caput, the head. 

 Hence we have occipital bone, or os occipitale, or os occipitis. The 

 Germans use das Hinterhauptbein ; the French, I' occipital. The 

 bone has had many synonyms, and some are found in the less recent 

 human anatomies, for example, os puppis, the bone of the stern, 

 because the top of the skull, when sawed off (the calvarium) and 

 turned over with the hollow side up, was thought to resemble a boat, 



FIG. 112. 



RHOMBOIDEUS CAPITIS 



CEPHALO-HUMERAL. SPLENIUS. BIVENTER CERVICIS. 



,- RECTUS CAPITIS POSTICUS MAJOR. 



RECTUS CAPITIS POSTICUS MINOR. 



Frontal. 



Parietal. 



Squamous of Temporal. 

 Post orbital Processes. 



COMPUEXUS. 



STERNO-MASTOID 



SPLENIUS. 

 RECTUS CAPITIS LATERALIS. 



CLEIDO-MASTOID. 





Zygomatic Process of 

 Temporal. 



Mastoid of Temporal 



STYLOGLOSSUS. 



DIGASTRIC. OBLIQUUS CAPITIS Paroccipttol or Jugular Process. Auditory Bulla 



SUPERIOR. 



THE SKULL, POSTERIOR OR OCCIPITAL ASPECT. 



whereof the back part was represented by the occipital bone ; and os 

 memories, because of its relation to the part of the brain once thought 

 to be the seat of memory. 



Ossification. --The occipital bone is developed from four parts. 

 The part above the foramen magnum is known as the supraoccipital, the 

 parts which bear the condyles are the exoccipitals, and the part below 

 the foramen, corresponding to the basilar process, is the basioccipital. 



Articulation. The occipital articulates with the interparietal, the 

 parietals, the temporals, and the sphenoid. 



Muscular Attachments. The muscles attached to the occipital 

 are: the rectus capitis anticus major and minor and the muscular 

 pharynx to the lower surface of the basilar plate (Fig. 107) ; the di- 



