Mechanisms

Question 1

Mechanisms: diffusion

Answer 1

Substances want to equalize so they flow passively from higher concentration to lower concentration until they are roughly equal.

Question 2

Mechanisms: O2and C02 transport

Answer 2

There’s more oxygen in mom, so oxygen goes to baby. More CO2 in baby, so it goes into mom.

Question 3

Mechanisms: blood flow

Answer 3

Maternal blood flows into pools in the intervillious space. Substances are absorbed by the villi into capillaries on the fetal side via diffusion