DISSECTION OF THE HEAD AND NECK 335 



(b) Interparietal sulcus (sulcus inter parietalis) (0. T. intraparietal 



sulcus of Turner). Note the sulcus paroccipitalis of Wilder, 



(c) Superior parietal lobule (lobulus parietalis superior). 



(d) Inferior parietal lobule (lobulus parietalis inferior). 



(da) Supramarginal gyrus (gyrus supramarginalis) around end 



of fissure of Sylvius. 



(db) Angular gyrus (gyrus angularis), around end of sulcus tem- 



poralis superior. 



The portion of the parietal lobe on the medial surface of the 

 hemisphere will be studied later. 



Occipital Lobe (Lobus occipitalis). 

 How is it bounded 



(a) On the convex surface? 



(b) On the medial surface? 



On the convex surface, examine 



(a) Transverse occipital sulcus (sulcus occipitalis transversus). 



(b) Superior occipital gyri (gyri occipitales superiores). 



(c) Superior occipital sulci (sulci occipitales superiores}. 



(d) Lateral occipital gyri (gyri occipitales laterales). 



(e) Lateral occipital sulci (sulci occipitales laterales). 



Locate the occipital pole (polus occipitalis). 



The medial surface of the occipital lobe will be studied later. 



Temporal Lobe (Lobus temporalis). 



What are its boundaries! Observe the temporal pole (polus 

 temporalis). Examine the following: 



(a) Transverse temporal sulci (sulci temporales transversi). 



(b) Transverse temporal gyri (gyri temporaleb transversi). 



(c) Superior temporal gyrus (gyrus temporalis superior) (0. T. first tem- 



poral gyrus). 



(d) Superior temporal sulcus (sulcus temporalis superior) (0. T. parallel 



sulcus, or first temporal sulcus). 



(e) Middle temporal gyrus (gyrus temporalis medius) (0. T. second tem- 



poral gyrus). 



(/) Middle temporal sulcus (sulcus temporalis medius) (0. T. second 

 temporal sulcus). 



(g) Inferior temporal gyrus (gyrus temporalis inferior) (0. T. third tem- 

 poral gyrus). 



(h) Inferior temporal sulcus (sulcus temporalis inferior) (0. T. occipito- 

 temporal sulcus). 



(i) Fusiform gyrus (gyrus fusiformis) (0. T. occipitotemporal convo- 

 lution). 



(j) Lingual gyrus (gyrus lingualis). In some English books this is re- 

 garded as a part of the occipital rather than of the temporal lobe. 



