Reproductive System Flashcards
CHROMOSOMAL and GENETIC SEX is determined at fertilization by the kind of sperm that fertilizes the ovum but the female and male morphological characteristics do NOT begin to develop UNTIL the
7th week
Gonadal sex is determined by the
TESTIS DETERMINING FACTOR
Under the influence of testosterone produced by fetal testes (8th week) – MESONEPHRIC (WOLFFIAN) ducts develops and forms
INTERNAL MALE GENITALIA
Epididymis
Ductus/Vas Deferens
Ejaculatory duct
PARAMESONEPHRIC (MULLERIAN) ducts develop d.t. absence of MIH forming the
INTERNAL FEMALE GENITALIA
Uterine tubes
Uterus
Vagina (Superior part)
Follicle cells arrested at VARIOUS stage of oogenesis
Primary follicle
primordial follicle - SIMPLE SQUAMOUS
primary follicle - SIMPLE CUBOIDAL
growing follicle - STRATIFIED CUBOIDAL
2nd meiotic division in the process of oogenesis will only be completed if there is
Fertilization
PP1P and SM2F
primary oocytes are arrested in PROPHASE of MEIOSIS I until PUBERTY
secondary oocytes are arrested in METAPHASE of MEIOSIS II until FERTILIZATION
47 XXY - only in MALES
sterility, testicular atrophy, gynecomastia
1 in 500 males
KLINEFELTER SYNDROME
45 XO - only in FEMALES
(-) ovaries, short stature, webbed neck, skeletal deformities, broad chest w/ widely spaced nipples
TURNER SYNDROME
AFTER OVULATION
Fertilization - 12-24 hrs after ovulation
2 cell stage - 30 hrs after fertilization
Morula - 3 days of age
Blastocyst - 5 days of age
IMPLANTATION
day 7 after fertilization
MOST DEPENDENT PART of the peritoneal cavity when the patient is in the STANDING POSITION
Frequently becomes the site for ACCUMULATION of BLOOD (ruptured ectopic pregnancy) or PUS (ruptured appendicitis or gonococcal peritonitis)
Pouch of Douglas/ Rectouterine Pouch
Stage of embryonic development where an embryo begin to implant in the endometrium
BLASTOCYST
