A pine is a coniferous trees in the genus Pinus, in the family Pinaceae. There are about 115 species of pines worldwide, although different authorities accept between 105 and 125 species.
1 The superior gluteal nerve and the nerve to quadratus femoris/inferior gemellus share the same nerve roots (L4, L5 and S1).  Similarly, the inferior gluteal nerve and the nerve to obturator internus/superior gemellus also share the same nerve roots (L5, S1 and S2).
The trochlear nerve (cranial nerve IV) emerges from the dorsal midbrain near the inferior colliculus. 2.1. Level of the Inferior Colliculus. In the study of neuroanatomy, axial sectioning of the midbrain is commonly performed at the inferior colliculus . The inferior colliculus nuclei represent a triad of gray matter nuclei within the inferior collicular eminences, which play a significant role in the auditory pathway.