A false-colour scanning electron micrograph of a human egg cell (gold) surrounded by cumulus cells (orange). Cumulus cells are specialised cells that nourish the large egg cell while it grows in the ovarian follicle. Credit: Yorgos Nikas, Wellcome Images.
Human tongue surface, coloured scanning electron micrograph (SEM). Covering the tongue's surface are scale-like projections called filiform papillae, which sense pressure. The round areas (purple) are fungiform papillae which contain the taste buds.
Inner ear hair cells. Coloured scanning electron micrograph (SEM) of sensory hair cells from the organ of Corti, in the cochlea of a mammalian inner ear. Each V-shaped arrangement of hairs lies on the top of a single cell.