Question

Amniotic fluid is 

A. Formed in early pregnancy by filtration from fetal skin capillaries. 

B. Formed in late pregnancy by filtration from the gut mucosa. 

C. Swallowed by the fetus. 

D. Similar in electrolyte composition to plasma. 

E. Inhaled and exhaled by the fetus.

Answer 1

A. True The non-keratinized skin is not waterproof. 

B. False It is formed by the kidneys and excreted as urine in late pregnancy. 

C. True Up to 0.5 litre/day is absorbed and excreted as urine. 

D. True The protein content is, however, much lower. 

E. True Surfactant from the lungs can be found in amniotic fluid in late pregnancy.