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.

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

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

Synapse. SEM of a neuromuscular junction showing a motor neuron (orange) terminating on skeletal muscle fibers (pink).

Synapse. SEM of a neuromuscular junction showing a motor neuron (orange) terminating on skeletal muscle fibers (pink).

Flu (influenza) virus particles (blue) on red blood cells

Flu (influenza) virus particles (blue) on red blood cells

ByRN6IbP7q0.jpg (521×500)

ByRN6IbP7q0.jpg (521×500)

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