Urogenital Diaphragm

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Author:
haaveshes
ID:
32928
Filename:
Urogenital Diaphragm
Updated:
2010-09-06 00:12:32
Tags:
Urogenital Diaphragm Anatomy Urogenital
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Description:
General info, Insertions, origins, actions, innervations
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  1. Urogenital diaphragm
    A. External urethral sphincter

    1.action: voluntary control of urination

    2.innervation: pudendal nerve



    B.Deep transverse perineal muscle

    1.fascias

    a. superficial fascia (superior fascia)

    b. perineal membrane (inferior fascia)

    2. action: supports pelvic organs

    3.innervation: pudendal nerve
  2. UG Diaphragm Consists of:
  3. Two muscles form the UG diaphragm:
  4. Perineal Spaces
    A. Deep perineal space

    1.boundaries: between the fascias of the UG diaphragm

    2.contents

    a.UG diaphragm

    b.membranous urethra

    B. Superficial perineal space

    • 1. boundaries: between perineal membrane and membranous layer of the
    • subcutaneous connective tissue (Colles' fascia)

    2. embryology of the external genitalia

    • a.Indifferent
    • stage

    i. genital tubercle

    ii. labioscrotal swelling

    iii. urethral fold

    b. differentiation:


    • i. dihydrotestosterone
    • (+): male

    • ii dihydrotestosterone
    • (-): female

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