Biology's Amazing World! @biologysamazingworld - Tumblr Blog

Nikon 2015 Small World Photomicrography Contest

-Eye of a honey bee (Apis mellifera) covered in dandelion pollen (120x)

-Mouse colon colonized with human microbiota (63x)

-Intake of a humped bladderwort (Utricularia gibba), a freshwater carnivorous plant (100x)

-Lab-grown human mammary gland organoid (100x)

-Live imaging of perfused vasculature in a mouse brain with glioblastoma

Links (Bee’s eye wins Nikon prize, 2015 Photomicrography competition Top 20)

#Nikon #2015 #contest #photography #Microscopy #microphotography #bee #eye

The Chemistry Of Watermelon

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#science #biology #chemistry #fruit #summer #watermelon #lycopene

The Science Of Falling In Love

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#science #biology #biochemistry #neuroscience #dopamine #serotonin #love

The ABC Of Organic Chemistry

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#science #organic #chemistry #biology #reaction

The Chemical Structures Of Vitamins

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#science #biology #biochemistry #vitamins

How to build a human

Human embryo and fetus development from fertilization to birth

#science #biology #embryology #embryo #fetus #fertilization #birth #egg #morula #blastocyst #neurulation

EPIGENETICS 101

#science #biology #genetics #epigenetics #chromatin #methylation #chromosome

Etymological Maps Of The Brain

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#science #biology #anatomy #neurology #neuroscience #brain #cerebellum #corpus callosum

The Chemistry Of The Different Colours Of Blood

#science #biology #chemistry #blood #haemoglobin #haemocyanin #chlorocrudrin #haemorythrin #respiration

The Eye: An Overview

As light penetrates the eye, the cornea refracts the light through the pupil and then the lens, which focuses the light onto the retina. There, photosensitive cells initiate electrical signals that travel along the optic nerve carrying the visual information to various brain areas in the opposite hemisphere, including the lateral geniculate nucleus (LGN), which relays the sensory information to the visual cortex at the back of the brain.

To reach the photoreceptors—the rods and cones—at the back of the retina, light must first travel through a thicket of other retinal cells. Glial cells called Müller cells guide incoming light to the photoreceptors, where photons are translated into nerve impulses via a biochemical reaction mediated by photopigments in the membrane of the cells’ outer segments. Bipolar neurons relay the signal from the photoreceptors to the ganglion cells, whose axons form the optic nerve, with the help of amacrine and horizontal neuronal cells.

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