Foetal Physiology

Placental Development

Diagram of fetal circulation showing the heart, lungs, liver, umbilical vessels, major blood vessels, and the ductus arteriosus, ductus venosus, and foramen ovale.

Foetal Circulation

Popular

Ocular Physiology

Ocular Accommodation

by Teerajet Taechameekietichai

Diagram showing upper motor neuron pathways from the precentral gyrus through the midbrain and medulla, crossing at the pyramidal decussation and continuing in the spinal cord to a lower motor neuron and skeletal muscle.
Motor System

Upper Motor Neurones

by Peter Dudley

Microscopic image showing pink-stained simple cuboidal epithelial cells lining irregular tubular spaces.
Tissue Structure

Epithelial cells

by Charlotte Smith