Cannibalism: A Perfectly Natural History by Bill Schutt book brought to you by Graphic Services for Science and Graphic…

currentsinbiology:

designinbiology:
Cannibalism: A Perfectly Natural History
by Bill Schutt
book
brought to you by Graphic Services for Science and Graphic Biology

Now this looks like a great read!

Now this looks interesting 🤓

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Growing New Neurons Neurons are specialized cells whose job is to send and receive information in the brain and nervous system….

ucsdhealthsciences:

Growing New NeuronsNeurons are specialized cells whose job is to send and receive information in the brain and nervous system. As they grow, neurons extend a single transmission cable — called an axon — from one side of the cell. At the same time, they deploy a set of antennae — called dendrites — on the other side, which allow electrical signals to pass from one neuron to another.  Using molecular spies that report on biochemical processes inside of living cells, researchers at University of California San Diego School of Medicine were able to observe how the spatial distribution of a key molecule, cyclic AMP, changes during axon growth. Their study is published February 13 by Nature Chemical Biology. “Our study is the first to show that developmental changes in cyclic AMP gradients determine how rapidly a neuron grows its axon,” said senior author Jin Zhang, PhD, professor of pharmacology at UC San Diego School of Medicine. “By perturbing these gradients, we were even able to make younger neurons grow longer axons and look more like mature neurons, which may help in developing treatments to regenerate injured or damaged nerves.”Pictured: False-color image of a developing neuron grown in culture for five days, showing a single axon extending downward from the left side of the cell and numerous dendrites protruding from the cell body

Super cool

Humani Corporis Fabrica- Andreae Vesalii  (en padre de la anatomia moderna) una verdadera reliquia diría yo… algo que sin…

un-medicoblasto-dice:
Humani Corporis Fabrica- Andreae Vesalii  (en padre de la anatomia moderna)
una verdadera reliquia diría yo…
algo que sin duda estaría bien descargar en el ordenador y ver con detalle.
-VIENDO COMO ESTUDIANTE DE MEDICINA-

On the fabric of the human body. Extremely detailed 🙂

Diagram of the mechanism for Thyroid Hormone Synthesis (T3 + T4)

Screen Shot 2017-02-11 at 12.06.29.png

  1. Iodide is actively transported into the follicular cell
  2. Iodide is oxidized to Iodine in the colloid
  3. The follicular cell synthesizes Thyroglobulin (TGB) and sends it to the colloid
  4. The tyrosine is Iodated to make T1 and T2.
    1. T2 combines with T1 to make T3.
    2. T2 combines with T2 to make T4(T1 never combines with T1)
  5. T3 and T4 is transported back into the follicular cell where a lysosome digests any colloid
  6. T3 and T4 are released into the bloodstream with TGB and travel to their target cells
  7. Elevated T3/T4 negatively feeds back to the hypothalamus to stop release of TRH

braincraft:

sciencefriday:

Frog saliva is weirder than you think.

Frogs use their tongues to snatch insects out of the air in less than a second. Reporting in a study out this week, mechanical engineer Alexis Noel found that the softness of the tongue, along with the viscosity of the saliva, enable these mid-flight catches. When the tongue hits an insect, the force turns the normally thick, viscous saliva into a thin liquid that can coat the prey, effectively ensnaring it. Noel calls the saliva a “reversible” non-Newtonian fluid and describes how its properties could be useful in adhesives and soft robots.

Listen here.

Nature continues to be delightful. 

Gotta love those frogs 🤓 https://youtu.be/SfQlKAeiUNk