What functions do the amniotic sac and the amniotic fluid perform?
- Aact as a barrier to the passage of bacteria and allow the transfer of some antibodies to the fetus
- Bprotect the fetus from physical shock and allow the fetus to move freely
- Cprovide soluble nutrients such as glucose and mineral ions for the fetus
- Dsupply oxygen to, and remove carbon dioxide from, the fetus