Pelvis/Perineum Flashcards
Branches of Pudendal Nerve
INFERIOR RECTAL- perianal skin, anal sphincter, mucous membrane lower anal canal
DORSAL NERVE OF PENIS/CLITORIS
PERINEAL - perineal muscles/skin
Course of Pudendal Nerve
Leaves main pelvic cavity through GREATER SCIATIC FORAMEN and enters perineum through LESSER SCIATIC FORAMEN
Pain of childbirth is transmitted through sensory fibers of
S2-S5
Done to abolish pain from anterior part of perineum
Illioinguinal nerve block
Motor functions of pudendal nerve
- maintains voluntary URINARY and FECAL CONTINENCE
- supports PELVIC VISCERA
- maintains ERECTION
- facilitates expulsion of urine from penile urethra during
MICTURITION; Sperm and seminal fluid during EJACULATION
Early genital systems in two sexes are similar until what week of human development
7th week
Gonadal sex is determined by
Testis determining factor
Spermatogonia are derived from
Primordial germ cells
Derivatives of Wolffian duct
Male reproductive organs - epididymis, vas deferens, ejaculatory duct
Paramesonephric/Mullerian ducts develop into?
Female reproductive organs - uterine tubes, uterus and vagina
Widest part of the uterine tubes
Ampulla
Narrowest portion of uterine tubes
Isthmus
Gametogenesis is controlled by what hormone from the anterior pituitary gland?
FSH
All primary oocytes are formed by what month of fetal life?
5th month
At what stage of embryonic development does an embryo begin to implant n the endometrium
Blastocyst
