learning objectives perineum 1 lecture anal triangle 1.perineum and pelvis- define the boundaries of...
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Learning Objectives
Perineum 1 Lecture
Anal Triangle
1. Perineum and Pelvis- Define the boundaries of the anatomical regions known as the perineum and pelvis.
2. Anal Triangle
a. Define the boundaries of the ischio-anal fossae.
b. Describe the course of the pudendal nerve and internal pudendal vessels through the gluteal region and anal triangle.
c. Define the location and contents of the pudendal canal.
d. Describe the course and distribution of the inferior rectal nerve and vessels.
e. Describe the location of the internal and external anal sphincter muscles.
f. Define the location and importance of the perineal body.
g. Define the types of hemorrhoids and the vessels involved in each.
h. Describe the sensory nerve supply for the anal canal.
i. Describe the blood supply and lymphatic drainage for the anal canal and peri-anal skin.
j. Understand the importance of the fat in the ischio-anal fossae.
Netter 334
Ischial spine
Obturator foramen
Netter 334
Moore et al; Fig. 3.3
Netter 334
Netter 474
Netter 474
Netter 335
Netter 336
Netter 335
Netter 336
Netter 334
Diagonal conjugate
Moore et al, Fig B3.2
Anorectal hiatus
Urethral hiatus
Tendinous arch
Piriformis m.
(Ischio)coccygeus m.
Iliococcygeus m.
Puborectalis m.
Pubococcygeus m.
Obturator internus m.
Plate 340
Plate 341 Gluteus maximus m.
(Ischio)coccygeus m.
Iliococcygeus m.
Pubococcygeus m.
Puborectalis m.Urethra
Plate 338
Urethra
Vagina
Rectum
Piriformis m.
Tendinous arch
Pubococcygeus m.
Iliococcygeus m.
(Ischio)coccygeus m.
Urethra
Vagina
Plate 339
Sacrotuberous ligament
Obturator internus m.
Pubococcygeus m.
Puborectalis m.
Iliococcygeus m.
(Ischio)coccygeus m.
Plate 338
Rectum
VaginaUrethra
Piriformis m.
Obturator internus m.
Tendinous arch
(Ischio)coccygues m.
Iliococcygues m.
Pubococcygeus m.
Moore et al, Fig. 3.8
Backhouse & Hutchings, Plate 435
S3
S2
S3
S4
Netter 159
Snell, Fig. 4-3Snell, Fig 4-3
Snell, Fig 4-4Snell, Fig 4-4
Plate 360
Snell; Fig 23-2
Levator ani m.
Gluteus maximus m.
External anal sphincter m.
Perineal body
Plate 362
Plate 358Gluteus maximus m.
Levator ani m.
Perineal body
External anal sphincter m.
Plate 393
Inferior rectal nn.
Perineal n.
Dorsal n. of clitoris
Pudendal nerve
Plate 384
Inferior rectal a.
Internal pudendal a.
Perineal a.
Plate 391
Fascia of obturator internus m. forming pudendal canal
Inferior rectal nn.
Perineal n.
Posterior scrotal n
Inferior rectal a
Pudendal n.
Plate 385Inferior rectal a.
Inferior rectal v.
Perineal a. and v.
Pudendal canal
Plate 372
Fat in ischioanal fossa
Obturator internus m.
Levator ani m.
Pudenal canal with pudendal n, internal pudendal a. and v.
Rectum
Anal canal
Plate 373
RECTUM
Anal columns
Internal venous plexus
External venous plexus
Levator ani m.
External anal sphincter m.
Plate 374
External anal sphincter m.
Internal anal sphincter m.
Anal valves
Anal columns
Internal venous plexus
External venous plexus
Plate 378
Internal pudendal a.
Obturator internus m.
Inferior rectal a.
Superior rectal a.
Middle rectal a.
Plate 379
Inferior rectal v.
Internal pudendal v.
Obturator internus m.
Superior rectal v.
Middle rectal v.
External venous plexusInternal venous plexus
Levator ani m.
Anal Fissure
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Hemorrhoids
Anal Fistula
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