tailieunhanh - Ebook BRS Gross anatomy (7th edition): Part 2

(BQ) Part 2 book "BRS Gross anatomy" presentation of content: Perineum and pelvis, back, head and neck, structures of the neck, deep neck and prevertebral region, face and scalp, temporal and infratemporal fossae, skull and cranial cavity, nerves of the head and neck. Invite you to consult. | 6 chapter Perineum and Pelvis PERINEAL REGION I. PERINEUM ■ ■ ■ ■ Is a diamond-shaped space that has the same boundaries as the inferior aperture of the pelvis. Is bounded by the pubic symphysis anteriorly, the ischiopubic rami anterolaterally, the ischial tuberosities laterally, the sacrotuberous ligaments posterolaterally, and the tip of the coccyx posteriorly. Has a floor that is composed of skin and fascia and a roof formed by the pelvic diaphragm with its fascial covering. Is divided into an anterior urogenital triangle and a posterior anal triangle by a line connecting the two ischial tuberosities. II. UROGENITAL TRIANGLE (Figures 6-1 and 6-2) A. Superficial Perineal Space (Pouch) ■ Lies between the inferior fascia of the urogenital diaphragm (perineal membrane) and the membranous layer of the superficial perineal fascia (Colles’s fascia). Visceral pelvic fascia Superior fascia of pelvic diaphragm Peritoneum Bladder Obturator internus muscle and fascia Pelvic diaphragm Inferior fascia of pelvic diaphragm Pudendal canal Ischiorectal fossa Prostate gland Urogenital diaphragm Crus of penis Ischiocavernosus muscle and fascia Superficial perineal fascia (of Colles) Superficial perineal space Buck's fascia Superior fascia of urogenital diaphragm Inferior fascia of urogenital diaphragm Bulbospongiosus muscle and fascia Bulb of penis FIGURE 6-1. Frontal section of the male perineum and pelvis. 244 244 2/23/11 10:46:55 AM Chapter 6 Perineum and Pelvis 245 Vagina Peritoneum Visceral pelvic fascia Obturator internus muscle Superior fascia of pelvic diaphragm Pelvic diaphragm Pudendal canal Ischiorectal fossa Inferior fascia of pelvic diaphragm Superior fascia of urogenital diaphragm Urogenital diaphragm Crus of clitoris Superficial perineal fascia Ischiocavernosus muscle and fascia Superficial perineal space Vestibular bulb Inferior fascia of urogenital diaphragm Greater vestibular gland and orifice of its duct Labium .