1. newborns

2. AMNIOTIC FLUID AND UMBLICAL CORD
Presented by
Sr. Bindhu K.V
1st Year MSc(N)
FMCON

4. ORIGIN Transudate from the maternal serum across the memberane.
Transudate from the umblical cord or from the fetal circulation or secretion from amniotic epithelium.
Transudate of fetal plasma.
Contribution from fetus.

5. VOLUME 50ml at 12 week 400ml at 20 week 1liter at 36-38 week
at term
200ml at 43 week

6. CIRCULATION
Water in amniotic fluid completely changed and replaced every 3 hours.
Fluid is swallowed by fetus
passes from gut in to fetal plasma

8. PHYSICAL FEATURES Specific gravity : 1.010 Hypotonic
Osmolaity : 250m osmol/liter
Colour :colourless ,but near term pale straw coloured
Abnormal colour: dark brown, meconium stained (green), golden,greenish yellow(saffron)

9. COMPOSITION Water :98-99% Solid :1-2% Solid organic inorganic
Suspended
particles

10. ORGANIC Protein : 0.39gm% Glucose : 20mg% Urea : 30mg% NPN : 30mg%
Uric acid : 4mg%
Creatinine : 2mg%
Lipid : 50mg%
Hormones

11. INORGANIC
Sodium
Chloride
Potassium

12. SUSPENDED PARTICLES Lanugo Exfoliated cells of fetal skin
Vernex caseosa
Cast of amniotic cells
Cells from RT,UB,Vagina

13. FUNCTION During pregnancy During Labour Clinical importance
Measurement of AFI

14. Fetal membranes
Amnion
Chorion

15. FETAL MEMBRANE

17. UMBLICAL CORD

18. Development of umbilical cord

19. Developed from connective stalk
Attached to caudal end of embryonic disc
Cephalocaudal folding of embryo
Amino ectodermal junction comes to ventral aspect of fetus
Elongation of connective stalk
Umbilical cord

21. STRUCTURE Covering epithelium Wharton’s jelly Blood vessels
Remnant of umbilical vesicle (yolk sac)
Allantosis
Obliterated extra embryonic coelome

23. CHARACTERISTIC Length Thickness Whartson's jelly Left to right twist
Arteries
Veins
Attachment

25. ABNORMALITIES

26. Single umbilical artery

27. True knot

28. True knot

29. False knot

30. Velamentous placenta

31. Stem cells

32. Umbilical Cord Hat

33. THANK YOU