Branchial arch giving rise to aorta
"Aor- from Four":
- Aorta is from fourth arch.
Cranial and spinal neural crest: major derivatives
GAMES:
- Glial cells (of peripheral ganglia)
- Arachnoid (and pia)
- Melanocytes
- Enteric ganglia
- Schwann cells
Fetal alcohol syndrome (FAS): features
FAS:
- Facial hypoplasia/ Forebrain malformation
- Attention defecit disorder/ Altered joints
- Short stature/ Septal defects/ Small I.
Foregut derivatives
"Little Embryo People Do Like Swallowing, Producing Gas":
- Lungs
- Esophagus
- Pancreas
- Duodenum (proximal)
- Liver
- Stomach
- Pancreas
- Gall bladder
Lung development: phases
"Every Premature Child Takes Air":
- Embryonic period
- Pseudoglandular period
- Canalicular peroid
- Terminal sac period
- Alveolar period
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
Neuroectoderm: derivatives
Neuroectoderm gives rise to:
- Neurons
- Neuroglia
- Neurohypophysis
- piNeurol (pineal) gland
Placenta-crossing substances
"WANTMy Hot Dog":
- Wastes
- Antibodies
- Nutrients
- Teratogens
- Microorganisms
- Hormones/ HIV
- Drugs
Potter syndrome: features
POTTER:
- Pulmonary hypoplasia
- Oligohydrominios
- Twisted skin (wrinkly skin)
- Twisted face (Potter facies)
- Extremities defects
- Renal agenesis (bilateral)
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
Tetrology of Fallot
"I HOPe
- Interventricular septal defect
- Hypotrophy of right ventricle
- Overriding aorta
- Pulmonary stenosis
Tetrology of Fallot
PROVe:
- Pulmonary stenosis
- Right ventricular hypertrophy
- Overriding aorta
- Ventricular septal defect
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.
- Vitelline duct: closure time
- VItelline duct normally closes around week VI of intrauterine life.
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.
Woffian duct (mesonephric duct) derivatives
Gardener's SEED:
*Female:
Gartner's duct, cyst
*Male:
- Seminal vesicles
- Epididymis
- Ejaculatory duct
- Ductus deferens