HEAD AND NECK 



Introductory. 



MAKE three drawings of the head (caput) and neck (collum) : 

 (a) anterior view, (I)) posterior view, (c) lateral view. Distin- 

 guish the portion corresponding to the skull proper (cranium) 

 from the face (fades). Indicate the highest point of the head 

 (vertex), separating the anterior part of the head (sinciput) 

 from the posterior part (occiput). Note that the occiput is 

 covered with hair; the sinciput also with the exception of its 

 anterior inferior portion, the forehead (frons). Laterally, the 

 temples (tempora) are naked in front but covered with hair 

 behind. The external ears (auriculae) are attached to the 

 cranium. 



In the drawings of the face (cf. Spalteholz, Fig. 513) label 

 the nose (nasus) with its tip (apex nasi), back (dor sum nasi), 

 and wings (alae nasi). Note the openings into the nose (nares) 

 and the partition between (septum nasi). In the region of the 

 mouth (regio oralis), draw the upper and lower lips (labia 

 superius et inferius) which bound the mouth-slit (rima oris). 

 Indicate exactly the furrow (sulcus nasolabialis) running down- 

 ward from each ala nasi and separating the region of the mouth 

 from that of the cheek (bucca) ; also, the curved transverse fur- 

 row (sulcus mentolabialis) separating the region of the mouth 

 from the chin (mentum). Fill in with care the details in the eye- 

 regions (regiones orbitales), bounded above at the junction with 

 the frons by the eyebrow (supercilium) and below at the junction 

 with the bucca by the infrapalpebral furrow (sulcus infrapalpe- 

 bralis). Label the upper and lower eyelids (palpebrae superior 

 et inferior) and the slit between them (rima palpebrarum) , 

 through which the anterior part of the eyeball (bulbus omli) is 

 visible. 



Beneath the cheek, on each side, notice the region below the 

 lower jaw (regio submaxillaris) and beneath the chin another 

 area (regio submentalis}. Note the deep depression (fossa 

 retromandibularis) below the ear and behind the lower jaw. Kx 

 amine the four cavities of the face, the two eye-cavities 

 (orbitae), the nasal cavity (cavum nasi) divided by the septum, 



13 l3 



