Hair cell in the ear
Blood vessels emerging from the optic nerve



Sperm on the surface of a human egg
Human embryo and sperm



Coloured image of a 6 day old human embryo implanting

Tooth plaque
Split end of human hair
Alveoli in the lung

Purkinje neurons

Tongue with taste bud

Villi of small intestine

Blood clot

Lung cancer cells

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