Embryology Flashcards
Who is the father of medicine?
Mr. hipokrat-hen eggs
What is decidual reaction
Tortuous glands with glycogen and mucous
Endometrial stromatolites being edematous and highly vascular
Epiblast
Columnar cells differentiated from embyroblast
Form amniotic cavity
Hypoblast
Cubic cells forming yolk sac
Exocoelemic cavity
Yolk sac
Lacuna spaces
Found at embryonic pole
Inter communicating network
Extraembryonic mesoderm
Cells derived from yolk sac
Extraembryonic somatopleuric mesoderm
Amnion and cytotrophoblast
Splanchnic
Yolk sac
Ectopic pregnancy
Slow rising beta gonodotrophin hormones
Extrauterune pregnancies
How long does the corpus luteum produce progesterone
20 weeks
Primitive streak
Primitive groove, primitive pit, primitive node
Remnant of primitive streak
Suppose to disappear by week 4
If not leads to sacrococcgyeal teratoma
Remnants of notochord
Chordomas
Neural plate
Ectoderm thickening
Neural crest cells
Differentiate from ectoderm
Breaks off and Form pns
Neurulation
Neuroectoderm folds to form neural tube
Neurospores
Anterior and posterior
Communication with amniotic cavity
Paraxial Mesoderm form
Axial skeletal
Somites -extra 4 occipital and 7 coccygeal somites
Mesoderm
Blood vessels Blood Heart Walls of the gut Lateral body wall Connective tissue Skeletal muscles Limbs Dermis Axial skeleton
Type of placenta found in humans
Hemochromatosis
Largest cell in spermatogenesis
Primary spermatocyte
Spermiogenesis
Acrosome
Tail
Loss of cytoplasm
Shape change
Non disjunction
Failure of chromosomes to separAte
Resulting in polyploidy
