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Prions and their lethal journey to the brain
"Analysis of the progression of disease-specific prion protein (PrP) accumulation within the nervous system of experimentally inoculated rodents indicates that the scrapie agent spreads from the intestine to the central nervous system (CNS) through two distinct neuroanotomical pathways95. In each case, the initial spread occurs in a retrograde direction along efferent (motor) pathways in a stepwise manner between synaptically linked sets of nerves. One route to the CNS occurs along sympathetic fibres of the splanchnic nerve to the intermediolateral cell column (IML) of the mid-thoracic spinal cord. Subsequently, the agent spreads to the brain in a caudal-to-cranial direction along the spinal cord. Neuroinvasion from the intestine can also occur independently of the spinal cord. In this case, the agent spreads along parasympathetic fibres of the vagus nerve to the dorsal motor nucleus of the vagus nerve (DMNV) within the medulla oblongata of the brain. GALT, gut-associated lymphoid tissues.”
Anonymous: How do I get over hot straight boys


Watch straight porn and look at how unsatisfied the women look

posted 1 month ago with 4,281 notes



The turtle cavalry is serious shit

"Onward, alligator steed!""I’m a crocodile.""Silence, water horse!"
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Researchers have discovered a novel type of communication between bacteria mediated by “bacterial nanotubes" that bridge over to neighbouring cells, providing an ideal platform for the exchange of cellular molecules and signals within and between species. In the image above, Bacillus subtilis is pictured visualised by a high-resolution electron microscope after growth to mid-exponential phase; intercellular nanopores connecting neighboring cells are easily visible.
Image Source: The Cell Picture Show.


it’s gotten to the point where i cant even call what im doing “procrastinating” anymore, i should just be calling it “jeopardizing my future”

posted 2 months ago with 136,039 notes

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by Richard Wheeler, University of Oxford
A stylized representation of Trypanosoma brucei, which causes African sleeping sickness in humans and nagana in cattle, is shown in the bloodstream.
Image: 3D rendered image created in Blender based on scanning and transmission electron micrographs.
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Cell undergoing mitosis….