DISSECTION OF THE HEAD AND NECK 247 



(be) Superficial anterolateral fasciculus (fasciculus anterolateralis 

 super ficialis [Gowersi]) (0. T. Gowers's tract). 



(bd) Proper lateral fasciculus (fasciculus lateralis proprius 

 [Flechsigi]) (0. T. lateral ground-bundle). 



(c) In the posterior funiculus (funiculus posterior} : 



(ca) Slender fasciculus (fasciculus gracilis [Golli]) (0. T. column 



or tract of Goll). 



(cb) Wedge-shaped fasciculus (fasciculus cuneatus [Burdachi]) 



(0. T. column or tract of Burdach). 



(d) Anterior white commissure (commissura anterior alba). 



FACE. 

 Surface Anatomy. 



The general features of the surface have already been exam- 

 ined. The student will do well at this time to make especial 

 drawings of the external appearance of the eye and mouth- 

 opening. 



The Eye. 



Indicate the eyebrow (superdlium) , with the hairs (super- 

 cilia). Examine the lids (palpebrae), closed and open. After 

 noting the appearance of the anterior surface (fades anterior 

 palpebrarum) , evert each lid and view the posterior surface 

 (fades posterior palpebrarum). The slit between is called the 

 palpebral fissure (rima palpebrarum). At the junction of the 

 two lids are situated the medial and lateral palpebral commis- 

 sures (commissurae palpebrarum lateralis et medialis) (0. T. 

 external and internal canthi). These are at the lateral and 

 medial angles of the eye (anguli oculi lateralis et medialis). 

 Observe that the edge of each lid has two margins (limbus palpe- 

 bralis anterior, posterior). What is the relation of the eye- 

 lashes (dlia) and of the openings of the Meibomian follicles 

 (glandulae tar sales [Meibomi]) to these margins? Trace the 

 continuity of the palpebral conjunctiva (tunica conjunctiva 

 palpebrarum) with the bulbar conjunctiva (tunica conjunctiva 

 bulbi). Note the recesses in the region where the palpebral con- 

 junctiva is reflected upon the eyeball; these are the superior 

 and inferior fornices (fornix conjunctivae superior, inferior). 

 Observe the triangular space (lacus lacrimalis) at the medial 

 extremity of the rima palpebrarum; in its centre is a reddish 

 flesh-like mass, the lacrimal caruncle (caruncula lacrimalis). 

 Observe the small vertical semilunar fold of conjunctiva (plica 

 semilunaris conjunctivae) just lateral from the caruncle. It cor- 



