Embryology Flashcards
what does the ureteric bud form?
- ureters
- collecting duct
- major & minor calyces
- renal pelvis
what does the intermediate mesoderm form?
- pronephros
- mesonephros
- metanephros
what does the mesonephros form?
- mesonephric ridge
- mesonephric duct
what does the mesonephric ridge form from and what does it form?
from:
mesonephros (of intermediate mesoderm)
forms:
- epididymis
- vas deferens
- seminal vesicles
- ejaculatory duct
what does the Mullerian duct form?
- fallopian tubes
- uterus
- cervix
- proximal 1/3 vagina
what does the endoderm form?
cloaca
what does the cloaca form from and what does it form?
from:
endoderm
forms:
- anorectal canal
- urogenital sinus
what does the anorectal canal form from and what does it form?
from:
cloaca (of endoderm)
forms:
upper 2/3 anal canal
what does the urogenital sinus form from and what does it form?
from:
cloaca (of endoderm)
forms:
upper - bladder
pelvic - female external genitalia, prostatic & membranous urethra
phalic - penile urethra
what are the parts of the urogenital sinus?
- upper
- pelvic
- phallic
what forms the lower 1/3 of the anal canal?
ectoderm
what is the decidua basalis?
- part of the endometrium
- invaded by trophoblast
what is the decidua capsularis?
- part of the endometrium
- overlies the blastocyst
what is the decidua parietalis?
- endometrium lining the rest of the uterine cavity
