Repro/Genetics DIT Flashcards
(300 cards)
layers of the penis?(6)
outer dermis dartos fascia deep bucks fascia tunica albuginea covers -2 copora cavernosa -1 corpus spongeosum urethra
Autonomic stimulation of male sex response
- Associated pathway w/ errection
- Increased what moleculy?
Point and shoot
Parasympathetic -> errection
- NO is release -> increased cGMP-> smooth muscle relaxation -> vasodilatation
Sympathetic -> emission
-move seamen to testes to prostate
Ejactulation - visceral and somatic nerves
Nerves carrying autonomic signal for male sexual response
3
Parasympathetic - pelvic
Sympathetic - hypogastric
Ejaculation - pudendal
landmark for pudendal nerve block?
ischial spine
3 ligaments connecting the the female reproduction to the pelvic wall
- connect specifically to?
cardinal ligament -> cervix (uterine artery)
suspensatory ligament -> ovary (ovarian artery)
broad ligament -> fallopian tube, uterus, ovary
Round ligament of the uterus is a remnant of what and connects to what
remnant of gubernaculum and connects to the labia majora
What connects the ovary to the uterus
ligament of the uterus
-NOT the round ligament
transition zone of the cervix composed of what histology
stratified squamous epithelial -> simple columnar epithelial
does not change much till cilia in the fallopian tube and cuboidal in the ovary
process vaginalis becomes what in the male and female?
male tunica vaginalis - just a covering
female - nothing
Which side of the body drains the gonadal/adrenal veins into the renal vein vs the directly into the IVC
Left
Lymphatic drainiage in repro?
Ovary/testes
proximal 2/3 vagina/uterus
distal 1/3 of vagina/scrotum
para aortic node
obterator, external iliac, hypogastric node
superficial inguinal node
SRY gene is responsible for?
production of testis determining factor and male sexual differentiation
Default path in sexual determination is ?
Female
- need SRY - testis determination factor
What does the mesonephric duct differentiate into in a male? (4)
Needs what to stimulate ?
Seminal vesicles
Epidydimis
vasdeferens
Ejactuatory Duct
NOT the prostate
Need testosterone
What cell produces the testosterone needed in early male differentiation?
What cell produces a product to stimulate the degeneration of the female parts precursor?
Leydig cell
Sertoli cell produces mullerian inhibitory factor to degenerate the paramesenphric duct
What leads the the creation of male external genitalia
Created by what enzyme?
- lack of this causes?
DHT
5 alpha aromatase
- leads to internally a male, externally a ambiguous
No Sertoli cells in a XY male would lead to ?
- no mullerian inhibitory factor
development of both paramesenephric derivatives and mesenephric derivatives (hermaphrodite)
Adult kidney is derived from
metanephros
Biconeate nucleus is due to ?
improper fusion of the paramesonephric ducts
Urogenital folds become what in males and females
Males - ventral shaft of penis
Females - labia minora
the scrotum of the male is analogous to the what on the female
labia majora
- labialscrotal precursor
hypospadius us what and due to?
urethra prematurely opening on the ventral shaft due to improper folding of the urogenital folds
Epispadius is often associated w/
extrophy of the bladder
Urethra is pointed up and the bladder wall can be exposed
due to faulty genital tubercle positioning
genital tubercle comes what in males and females?
clitoris
penis