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Embryology Mnemonics
Embryology Mnemonics
EMBRYOLOGY
MNEMONICS

Vitelline duct: closure time

VItelline duct normally closes around week VI of intrauterine life.

 

Potter syndrome: features POTTER:

Pulmonary hypoplasia

Oligohydrominios

Twisted skin (wrinkly skin)

Twisted face (Potter facies)

Extremities defects

Renal agenesis (bilateral)

 

Placenta-crossing substances "WANT My Hot Dog": Wastes

Antibodies

Nutrients

Teratogens

Microorganisms

Hormones/ HIV

Drugs

 

Cranial and spinal neural crest: major derivatives GAMES:

Glial cells (of peripheral ganglia)

Arachnoid (and pia)

Melanocytes

Enteric ganglia

Schwann cells

 

Mesoderm components MESODERM:

Mesothelium (peritoneal, pleural, pericardial)/ Muscle (striated, smooth, cardiac)

Embryologic Spleen/ Soft tissue/ Serous linings/ Sarcoma/ Somite

Osseous tissue/ Outer layer of suprarenal gland (cortex)/ Ovaries

Dura/ Ducts of genitalia

Endothelium

Renal Microglia

Mesenchyme/ Male gonad

 

Vasculogenesis vs. angiogenesis

"Vascu is new. Angi is pre": Vasculogenesis is new vessels developing in situ from existing mesenchyme. Angiogenesis is vessels develop from sprouting off pre-existing arteries.

 

Weeks 2, 3, 4 of development: an event for each

Week Two: Bilaminar germ disc.

Week Three: Trilaminar germ disc.

Week Four: Four limbs appear.

 

Teratogenesis: when it occurs

TEratogenesis is most likely during organogenesis--between the: Third and  Eighth weeks of gestation.

 

Tetrology of Fallot "Don't DROP the baby": 

Defect (VSD)

Right ventricular hypertrophy

Overriding aorta

Pulmonary stenosis

 

Lung development phases "Every Premature Child Takes Air":

Embryonic period

Pseudoglandular period

Canalicular peroid

Terminal sac period

Alveolar period

 

Branchial arch giving rise to aorta

"Aor- from Four": Aorta is from fourth arch.

 

Neuroectoderm derivatives

Neuroectoderm gives rise to:

Neurons

Neuroglia

Neurohypophysis

piNeurol (pineal) gland

 

Tetrology of Fallot

"IHOP-International House of Pancakes":

Interventricular septal defect

Hypotrophy of right ventricle

Overriding aorta

Pulmonary stenosis

 

Woffian duct (mesonephric duct) derivatives.

Gardener's SEED:

Female: Gartner's duct, cyst

Male:

Seminal vesicles

Epididymis

Ejaculatory duct

Ductus deferens

 

Foregut derivatives

"Little Embryo People Do Like Swallowing, Producing Gas": Lungs Esophagus Pancreas Duodenum (proximal) Liver Stomach Pancreas Gall bladder

 




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