teethmilk:

Some epithelia are accessible for sampling and diagnosis, such as the uterine cervix. Cancer screening can be done by sampling some of the cells by brushing or scraping them off and sending them to the laboratory. Here is a cervical Pap smear in which dysplastic cells are present that have much larger and darker nuclei than the normal squamous cells with small nuclei and large amounts of cytoplasm.

ifiwereabear:

This is the varicella virus, aka chickenpox. 

vacantlots:

This is a satellite photo of the Ganges. It is a good example of pattern replication in nature. The twisting lines of the rivers are in fact approximate fractals.

Looks like purkinje neurons!

(via belialjones)

overinformedblues:

Le Cote du Maroc

Eugene Delacroix

midnight-gallery:

Image from the Brockhaus and Efron Encyclopedic Dictionary, published in Russia,1890-1907.

medicalschool:

H1N1 Virus

(Source: dailycontributor.com)

(Source: juliusnielsen)