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70 Cards in this Set
- Front
- Back
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lig teres
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umbilical vein
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medial umbil lig
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umbilical artery
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allantois-urachus
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mediaN umbil lig
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male homolog of vestibular bulb
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corpus spongiosum
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female homolog prostate
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urethral/paraurethral glands of Skene
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male homolog of glans clitoris
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glans penis
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homolog of bulbourethral (Cowper, male)
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greater vestibular gland (of Bartholin)
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homolog of labia minora
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ventral penis
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homolog of labia majora
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scrotum
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homolog of scrotum
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labia majora
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where chorionic cavity
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forms bw splanchnic and somato extra embryonal
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derivatives extraembryo meso of yolk sac
-lines what? |
extraembryonic meso-1somatopleuric (lines cytotropho and amnion), 2splanchnopleuric (lines yolk)
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describe fetal circulation
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oxygen blood from placenta enter via umbil vein
diverted past liver by ductus venosus enter heart via IVC diverted thru to LV via foramen ovale, or from RV to PA to ductus to aorta |
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what happens to fetal circulation at birth (2 closures)
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decr resistance of pulmonary vasculature, increase LA P =close foramen ovale
incr O2 decr PG clses ductus arteriosus |
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development of diaphragm
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"Several parts build diaphragm"
septum transversum pleuroperitoneal folds body wall dorsal mesent esophagus |
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describe morula
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32 cells with inner cell mass and outer cell mass
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describe blastocyst
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composed of embryoblast and trophoblast
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describe division of blastocyst
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embryoblast-epiblast (amnionic cavity) and hypoblast (yolk sac)
trophoblast-cytotrophoblast and syncytiotrophoblast (both placenta) |
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UG sinus forms male/female
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common: bladder, urethra
male: prostate, cooper female: lower vagina, Bartholin |
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mesoneph/wolffian male/female structures
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common: ureter, renal
male: epidid to seminal vesicle, ATP female: nothing, only gartner duct, epoophor, paorph |
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deriv Para/Mullerian
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male:
female: uterus, upper vagina, fallopian |
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genital tubercle
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male: glans penis, spongiosum, cavernosum
female: clitoris |
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UG fold
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male: ventral penis, raphe
female: labia minora |
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labioscrotal fold
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male: scrotum
female: labia majora |
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indiffted gonad
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male: seminifer tub (primary sex), rete testes
female: follicles (2 sex cord) |
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prostate comes from
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UG sinus
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spongiosum comes from
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genital tubercle
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vagina comes from
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upper from para/mullerian, lower from UG sinus
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anterior 2/3 tongue taste and pain from
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taste 7, pain V3 (1st arch)
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post 1/3 tongue taste and pain
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taste and pain both 9
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back of tongue taste and pain
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both 10
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motor of tongue
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all 12
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thyroid develop
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develops from thyroid diverticulum of primitive pharynx, descends into neck, connected to tongue by thyroglossal duct which becomes pyramidal lobe thyroid
remnant=foramen cecum |
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midgut development
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primary intestinal loop herniates and rotates 90 CC thru vitelline duct. then ~10wk rotate 180 CC and reabsorbed and fixed to wall
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3 pathol condictions from midgut rotation/reabsorb
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1. no closure-omphalocele with covering over intesting
2. nonrotation (net 90 CC), SI on R, colon on L malrotation (net 180CC) cecum fixes to abd wall can cause volvulus 3. meckels-failure vitelling duct close |
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blood supply to GI
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1. foregut=celiac a (thru upper duo, incl liver, GB, pancreas)
2. midgut=s. mesenteric (to lig trietz 2/3 transverse colon) 3. hindgut=i mesenteric |
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stomach develop (and wks)
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5 wks, dorsal enlarge>ventral=grtr curv
superior dilates=fundus 7 wks: 90 rotation CC |
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describe result of stomach 90 rotation
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dorsal becomes L (greater)
L vagus becomes anterior, R vagus posterior "LARP" |
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develop of duo
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pushed posterior becomes retroperitoneal,
"C" due to stomach, pushed R |
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foramen of winslow
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connects grtr and lessr sac
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aortic/pulmon septation
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migration NC to truncal and bulbar ridges, spiral, fuse
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atrial septation
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foramen 1=bw septum 1 and Av septum
foramen 2=IN septum primum septum secundum covers septum 1 leaving PFO |
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Atria/ventricle septation
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created by fusion of AV cushions
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IV septation
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muscular IV septum grows up from floor
membranous IV septum is fusion of R/L bulbar, A cushion (membran VSD) |
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deriv truncus arteriosus
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ascend aorta, pulmon trunk
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bulbus cordis
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smooth LV, RV
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primitive ventricle
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trabeculated RV/LV
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primitive atria
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trabeulated RA/LA
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derivatives sinus venosus
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sm of RA, cor sinus, SVC/IVC
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when caudal neural tube close? dz?
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25d, if doesn't spina bifida
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cranial neural tube closes when?
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27d, if not anencephaly/encphelaocele
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(7) embryologic derivatives that give rise to GU system
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1. UG sinus
2. Mesonephr/Wolff 3. Para/Mullerian 4. Genital tubercle 5. UG fold 6. labioscrotal fold 7. indifftd gonad |
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name the structures common to male/female GU tract and where they came from
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bladder, urethra (from UG sinus)
ureter, renal (from Mesoneph/Wolff) |
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name embryo parts contribute to heart
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1. truncus arteriosus (asc aorta, pul trunk)
2. bulbus cordis (sm LV/RV) 3. primitive ventricle (trabec RV/LV) 4. primitive atria (trabec RA/LA) 5. sinus venosus (sm RA, cor sinus, SVC/IVC) |
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name general progression of blastula
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blastula
morula blastocyst embryoblast/trophoblast epiblast, hypo/cytotroph, syncyt amnionic, yolk/placenta yolk extra embry splits somato and splanch |
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develop of pancreas
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ventral pan bud becomes pan head, unicnate process, and main pan duct
dorsal bud becomes everything else |
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develop spleen, blood supply
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from dorsal mesentery but blood supply is from artery of foregut (celiac)
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mesonephric duct derivatives pneumonic
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SEEDDD seminal vesicles, epididymis, ejac duct, ductus deferens
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cause hypospadias
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failure urethral folds close
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cause epispadias
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faulty position of genital tubercle
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what assoc with epispadias
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exstrophy of bladder
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bicrornuate uterus, assoc
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incomplete fusion of parameso duct, assoc with UT abnormalities and infertility
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circul fetus:
lower body supplied by head |
deoxygen SVC to PA and ductus arteriosus to lower body
oxygenated IVC thru foramen ovale to head |
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fetal blood syn
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yolk (3-8)
liver (6-30) spleen (9-28) BM (>28) "young liver syn blood" |
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DES during preg cause?
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vaginal clear cell adenocarc
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cleft lip
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failure maxillary and medial nasal process
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cleft palate
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failure lateral palatine, nasal septum, and/or median palatine
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primitive streak made out of
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epiblast (becomes meso and endo)
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"cervical sinuses"
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2-4 clefts form these temporarily until prolilferation 2nd arch mesen (can lead to branchial cyst in neck)
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week 2 develop
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bilaminar disk: epi and hypoblast
2 cavities: aminion, yold 2 placenta parts: cyto and syncytio |
