21. The superior temporal sulcus is the first sulcus inferior to the lateral fissure. 22. The oblique anal sulcus is deep, narrow and slightly spherical in shape. 23. Segments 5 16 have a transverse sulcus , which is common among males. 24. The single hemipenis has a forked sulcus spermaticus and three large basal spines. 25. Approximate boundaries are the cingulate sulcus dorsally and the parieto-occipital sulcus caudally. 26. Approximate boundaries are the cingulate sulcus dorsally and the parieto-occipital sulcus caudally. 27. The cortical region related to gustatory sensation is located anterior to the central sulcus . 28. The penis itself provides distinct anatomical environments in the urethra and coronal sulcus ". 29. The basilar artery runs within the basilar sulcus . 30. When sleep-deprived, subjects showed increased activation in the left intraparietal sulcus .
