spermatogenesis

spermatogenesis

Human Muscle Tendon seen using a scanning electron micrograph (SEM), which shows bundles of collagen fibres.

Human Muscle Tendon seen using a scanning electron micrograph (SEM), which shows bundles of collagen fibres.

Scanning electron micrograph (SEM) of an inner ear hair cell. Magnifies vibrations.

Scanning electron micrograph (SEM) of an inner ear hair cell. Magnifies vibrations.

Human egg cell

Human egg cell

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.

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.

embryo in the eye of a needle

embryo in the eye of a needle

Glomérulo do rim. Os podócitos aparecem em cor de rosa. Podócitos são células do epitélio visceral dos rins que formam um importante componente da barreira de filtração glomerular, contribuindo para a seletividade de tamanho e mantendo uma superfície de filtração massiva. Aumento: 650X

Glomérulo do rim. Os podócitos aparecem em cor de rosa. Podócitos são células do epitélio visceral dos rins que formam um importante componente da barreira de filtração glomerular, contribuindo para a seletividade de tamanho e mantendo uma superfície de filtração massiva. Aumento: 650X

receptor de insulina

receptor de insulina

Harvard scientists map most complicated terrain in the universe - the inside of the human brain

Land of dreams: Harvard scientists map most complicated terrain in the universe - the inside of the brain

Harvard scientists map most complicated terrain in the universe - the inside of the human brain

Scanning electron microscope (SEM) image of human muscle tissue collected from an 18 year old male during tooth surgery. The  connective tissue I  collagen fibers and red blood cells . Magnification x4200 when printed 10 cm wide.

Scanning electron microscope (SEM) image of human muscle tissue collected from an 18 year old male during tooth surgery. The connective tissue I collagen fibers and red blood cells . Magnification x4200 when printed 10 cm wide.

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