Part 2 book “Grant’s dissector” has contents: Male external genitalia and perineum, male pelvic cavity, male urogenital triangle, male pelvic diaphragm, gluteal region, posterior compartment of the leg, anterior triangle of the neck, cranial fossae, and other contents. | CHAPTER 5 The Pelvis and Perineum ATLAS REFERENCES G = Gra n t ’s, 14t h ed ., p a ge N = Net t er, 6t h ed ., p la t e L = Lip p in co t t , 1st ed ., p a ge R = Ro h en , 8t h ed ., p a ge Lesser (true) pelvis Greater (false) pelvis h e p elvis is th e area of tran sition between th e tru n k an d th e lower lim bs. Th e bon y p elvis serves as th e Plane of pelvic inlet Iliac crest fou n d ation for th e p elvic region an d p rovid es p rotection for p elvic organ s as well as stron g su p p ort for th e vertebral colu m n on th e lower lim bs. Th e p elvic ca vit y is con tin u ou s with th e abdom in al cavity, with th e tran sition occu rGluteal rin g at th e p lan e of th e p elvic in let (FIG. ). Th e p elvic region cavity con tain s th e rectu m , th e u rin ary blad d er, an d th e in tern al gen italia. [G 390] Th e p er in eu m is t h e regio n o f t h e t ru n k lo cat ed b et ween t h e t h igh s an d sep arat ed fro m t h e p elvic cavit y b y t h e p elv ic d ia p h r a gm (FIG. ). Th e p erin eu m co n t ain s t h e an al can al, t h e u ret h ra, an d t h e ext ern al gen it alia (p en is an d scro t u m in t h e m ale, vu lva in Pelvic brim Pelvic diaphragm t h e fem ale). Perineal region Ischioanal fossa Perineal membrane Th is ch ap ter begin s with th e d issection of stru ctu res in FIGURE The pelvis on coronal section. th e an al trian gle com m on to both sexes. Dissection of in tern al an d extern al gen italia is d ivid ed in to two section s: on e for m ale cadavers an d on e for fem ale cadavers. Stu d en ts are exp ected to learn th e an atom y of both th e m ale an d fem ale p elvis an d p erin eu m ; th erefore, each d issection team sh ou ld p artn er with an oth er team d issectin g a cad aver of th e op p osite sex. T ANAL TRIANGLE Disse ct io n Ove rvie w Th e p e rin e u m is a d iam on d -sh ap ed area, inferior to th e p elvic d iap h rag m , b etween th e th ig h s. The p erin eum is com m on ly d ivid ed , .
