Embryology Mnemonics

 

 

Mitosis: events at 4 stages · Prophase, Metaphase, Anaphase,Telophase:Prophase: Chromosomes and spindles are Produced.Metaphase: chromosomes MetAlign themselves.Anaphase: [Ana] divorced or separated.Telophase: Tell-O'Brien his daughter cells are ready.

Woffian duct (mesonephric duct) derivatives. Gardener'sSEED:· Female:Gartner's duct, cyst· Male:Seminal vesiclesEpididymisEjaculatory ductDuctus deferens

Potter syndrome: features POTTER:Pulmonary hypoplasiaOligohydrominiosTwisted skin (wrinkly skin)Twisted face (Potter facies)Extremities defectsRenal agenesis (bilateral)

Fetal alcohol syndrome (FAS): features FAS:Facial hypoplasia/ Forebrain malformation

Attention defecit disorder/ Altered jointsShort stature/ Septal defects/ Small I.Q

Tetrology of Fallot PROVe:Pulmonary stenosisRight ventricular hypertrophyOverriding aortaVentricular septal defect

Neuroectoderm derivatives Neuroectoderm gives riseto:NeuronsNeurogliaNeurohypophysispiNeurol (pineal) gland

Foregut derivatives "Little Embryo PeopleDo Like Swallowing, Producing Gas":LungsEsophagusPancreasDuodenum (proximal)LiverStomachPancreasGall bladder

Heart: primitive heart chambers in fetal heart "TheBroken Vein Always Stenoses, But VeinsAre Smooth":

· The order of the compartments is:<b<t< b>runcus, bulbusPrimitive VentriclePrimitive AtriumSinus venosus·The connections are:Bulbotruncal junctionVentriculobulbar foramenAtrioventricular canalSinuatrial junction

Tetrology of Fallot "Problems Of SmallHearts":Pulmonary stenosisOverriding aortaVentricular Septal defectHypertrophy of right ventricle

Weeks 2, 3, 4 of development: an event for each Week Two:Bilaminar germ disc.Week Three: Trilaminar germ disc.Week Four: Fourlimbs appear.

Lung development phases "Every Premature ChildTakes Air":Embryonic periodPseudoglandular periodCanalicular peroidTerminal sac periodAlveolar period

Branchial arch giving rise to aorta "Aor- from Four":Aorta is from fourth arch.

Placenta-crossing substances "WANT My HotDog":WastesAntibodiesNutrientsTeratogensMicroorganismsHormones/ HIVDrugs

Cranial and spinal neural crest: major derivatives GAMES:Glial cells (of peripheral ganglia)Arachnoid (and pia)MelanocytesEnteric gangliaSchwann cells

Tetrology of Fallot "Don't DROP the baby":Defect (VSD)Right ventricular hypertrophyOverriding aortaPulmonary stenosis

Mesoderm components MESODERM:Mesothelium (peritoneal, pleural, pericardial)/ Muscle (striated,smooth, cardiac)

EmbryologicSpleen/ Soft tissue/ Serous linings/ Sarcoma/ SomiteOsseous tissue/ Outer layer of suprarenal gland (cortex)/ OvariesDura/ Ducts of genitaliaEndotheliumRenalMicroglia/ Mesenchyme/ Male gonad

Tetrology of Fallot "IHOP-International House ofPancakes":Interventricular septal defectHypotrophy of right ventricleOverriding aortaPulmonary stenosis

Teratogenesis: when it occurs TEratogenesis is mostlikely during organogenesis--between the:Third andEighth weeks of gestation.

Vitelline duct: closure time VItelline duct normallycloses around week VI of intrauterine life.