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23pairsofchromosomes:

Scanning electron micrograph of MRSA (green) being engulfed by white blood cell. This process is known as phagocytosis, and is a form of endocytosis. Receptors on the white blood cell bind to ligands on MRSA in a zip like fashion until they completely surround the target. The foreign body can then be internalised and degraded.
(Image source: Flikr)

23pairsofchromosomes:

Scanning electron micrograph of MRSA (green) being engulfed by white blood cell. This process is known as phagocytosis, and is a form of endocytosis. Receptors on the white blood cell bind to ligands on MRSA in a zip like fashion until they completely surround the target. The foreign body can then be internalised and degraded.

(Image source: Flikr)

(via currentsinbiology)

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mucholderthen:

First Cell; First Friends Posted MARCH 05, 2014 on her blog by Beatrice the Biologist  _____________________________________
The loneliness of the single-cell[Spoiler: this is not an entirely accurate presentation of the advent of cell division. But … we know little about what it feels like to be a cell.]

mucholderthen:

First Cell; First Friends
Posted MARCH 05, 2014 on her blog by Beatrice the Biologist  
_____________________________________

The loneliness of the single-cell
[Spoiler: this is not an entirely accurate presentation of the advent of cell division. But … we know little about what it feels like to be a cell.]

Photo
corporisfabrica:

Illustration of the heart, lungs, trachea and major blood vessels. From Gray’s Anatomy (1918)

corporisfabrica:

Illustration of the heart, lungs, trachea and major blood vessels. From Gray’s Anatomy (1918)

Quote
"Not one of your pertinent ancestors was squashed, devoured, drowned, starved, stranded, stuck fast, untimely wounded, or otherwise deflected from its life’s quest of delivering a tiny charge of genetic material to the right partner at the right moment in order to perpetuate the only possible sequence of hereditary combinations that could result — eventually, astoundingly, and all too briefly — in you."

Bill Bryson, A Short History of Nearly Everything (via thedragoninmygarage)

Photo
spaceexp:

Spiral Galaxy NGC 1232 - The central region contains older stars of a reddish color, while the spiral arms are populated by young, blue stars and star-forming regions.

spaceexp:

Spiral Galaxy NGC 1232 - The central region contains older stars of a reddish color, while the spiral arms are populated by young, blue stars and star-forming regions.

Tags: science
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post-mitotic:

turns out your brain is lined by gumballs…er…ependymal cells
ependyma is one of the four types of neuroglia in the central nervous system, constituting an epithelium-like layer that lines the ventricles and central canal of the spinal cord
it also produces cerebrospinal fluid (CSF)
note that in the fetus (here), ependymal cells are not ciliated
colored SEM, 1000x
credit: Steve Schmeissner

post-mitotic:

turns out your brain is lined by gumballs…er…ependymal cells

ependyma is one of the four types of neuroglia in the central nervous system, constituting an epithelium-like layer that lines the ventricles and central canal of the spinal cord

it also produces cerebrospinal fluid (CSF)

note that in the fetus (here), ependymal cells are not ciliated

colored SEM, 1000x

credit: Steve Schmeissner

Photo

One enduring question of evolution is why sea creatures began slithering onto land. In the first cartoon of this post, I present my theory.{x}

One enduring question of evolution is why sea creatures began slithering onto land. In the first cartoon of this post, I present my theory.
{x}

(via sarcasm-for-the-win)

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dctor:

Neuron cells on canvas.http://fineartamerica.com/featured/neuron-dan-cojocari.html
Neuron prints
Neurons photos
Text

Basically, if you don’t support stem cell research, you’re a giant weenie baby.

lolmythesis:

Biology, BSU

The Moral Ethics Surrounding Stem Cell Research

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overfedvenison:

…I feel like most people wouldn’t find this intuitive. Good job, Crow

overfedvenison:

…I feel like most people wouldn’t find this intuitive. Good job, Crow

(via thosewhocare)