2,830 reputation
21040
bio website
location United States
age
visits member for 2 years, 9 months
seen 20 hours ago

Neuronerd.


Jul
13
revised Regarding apoptosis and inhibitors
added 4 characters in body
Jul
2
awarded  Curious
Jul
2
comment Kinesin-5 / cytoplasmic dynein spatial density distribution in neurons
I have next to no knowledge of this area, but I do know that Peter Baas has done extensive studies of Kinesin-5 in neuronal growth cones during development. I mention that in the off chance that some of his imaging techniques might be helpful to you.
Jun
25
reviewed Leave Closed On evolution statistics
Jun
24
comment Can human change its morphology or anatomy due to ecological changes?
I went ahead and changed it, as other people are going to come in trying to correct it as well.
Jun
24
revised Can human change its morphology or anatomy due to ecological changes?
deleted 4 characters in body
Jun
23
answered Which organs do cats not eat on their prey?
Jun
22
revised What Aquatic Mammal has no Tail?
edited tags
Jun
22
comment Is it possible to get infected with HIV from old blood?
It's important to define how old is "old", here, I think. I rephrased the question a bit so that it focuses more on the science than an individual diagnosis.
Jun
22
revised Is it possible to get infected with HIV from old blood?
added 29 characters in body; edited title
Jun
19
comment How is information sent from limbs to the brain exactly?
If this is something that you are interested in, the rat whisker system is the model used for decoding some of these pathways. The earlier connections are different (it's a nerve that goes directly to the brainstem), but the cortical layout is similar.
Jun
19
comment How is information sent from limbs to the brain exactly?
(for example, the roots for the arms enter between the vertebrae of the cervical region -- en.wikipedia.org/wiki/Dermatome_%28anatomy%29, legs in the lumbar, etc.)
Jun
19
comment How is information sent from limbs to the brain exactly?
@user2721465 It's not necessarily a 1-1 relationship between skin receptive field and column in the cortex (there are higher level "abstractions" in the cortex such as orientation of the stimulus, etc.). Since the information is being "filtered", there are complex relationships between the thalamic cells, and there's some degree of consolidation that goes on. The bundles of axons are converging on the cord at different levels (see a map of the dermatomes for the mapping), but the tracts are quite thick anatomically, so there's many thousands of axons in one nerve bundle.
Jun
19
comment How is information sent from limbs to the brain exactly?
This is a bit of a work in progress, but it should give you some terms to google, etc.
Jun
19
answered How is information sent from limbs to the brain exactly?
Jun
19
comment How is information sent from limbs to the brain exactly?
@user2721465 I will try to address some of these questions in my answer.
Jun
19
comment How is information sent from limbs to the brain exactly?
For a quick primer, see en.wikipedia.org/wiki/Receptive_field#Somatosensory_system, but hopefully I (or someone else) can come along and fill in the gaps in a bit.
Jun
19
accepted Long term effects of “brain freeze” on the cerebral vasculature
Jun
12
revised Do mitochondria use ATP in order make another ATP from glucose?
deleted 2 characters in body; edited title
Jun
12
revised Do mitochondria use ATP in order make another ATP from glucose?
added 4 characters in body; edited tags; edited title