Anatomy, Physiology and Neuroscience

Hi folks! I'm new to neuroscience and this forum and was hoping to get some help from people who know a lot more on this topic than I do. I have a friend of mine who had a paper published earlier this year about some stuff he's working on regarding MRIs and PTSD. The link to it is as below: http://www.sciencedirect.com/science/article/pii/S0925492715000037 I'd like some help with understanding what this is about. My friend explained it to be briefly but it didn't sink in and I'm too embarrassed to ask him again and seem stupid. Whatever help that you can provide would be very much appreciated. Thanks Also as a side thing, what do you think of the pap…

why lig.denticulate is located at medulla spinalis ,but its not found (located) at the brain too ?

How can I train myself to increase my memory? Many times where I have joined my friends to study, I have noticed when they were look at the PPT slides, many of them looked at the slides over and over and they were able to memorize it. Others, just looked at the power point slides like a newspaper, and the information registered. For me, I can only memorize by writing down the material, and though its useful for me, it is extremely time consuming. Are there ways for me to increase my memory or train my memory where storing information in my mind is easier.

Hello everyone The Princples of Neural Science (Kandel et al.) states that "For example, the receptive fields of SA1 and RA1 fibers innervating the fingertip are tiny spots on the skin, whereas those on the cortical neurons receiving these inputs cover an entire fingertip or several adjacent fingers. The receptive field of a neuron in area 3b represents a composite of inputs from 300 to 400 sensory nerve fibers." My question is: how so are these smaller receptive fields of those sensory nerve fibers innervating e.g. Merkel and Meissner cells, still distinguished as per two-point discrimination, on a conscious level, if they're all merged into 1 perceptive field on…

I keep reading that medium chain triglycerides have a laxative effect, but I can't find an explanation for this anywhere. What actually causes this? Thanks in advance for any help

Oxygen is an important fuel in living animals. In the unicellular animal like the amoeba, the oxygen needed for metabolism diffuses from the water in which the organism lives into its body cell. Metabolism of food substances in the body leads to production of energy, water and carbon dioxide. The concentration of carbon dioxide inside the body cells is therefore higher than outside the cells. The excess CO2 must be excreted from the body. In the case of amoeba, CO2 diffuses along its concentration gradient from the inside of the organism to the surrounding water. The taking in of oxygen and given off of carbon dioxide is called external respiration. The utilization of the…

Hello community, everybody I know has from time to time a musical loop in their imagination (earworm). Our brain must have the abillity to memorize music as it was heard and then replay it. Nobody has learned this ability by conscious but for some reason I have lost this abillity. Some years ago I could imagine music just from my mind but now I can't even imagine the sound of an specific instrument. I tryed to get an earworm again so I heard one song over and over for three days. My brain should memorize the music and I should be able to recall the sounds but it does not work. When I have stoped hearing the song I was able to recall some fragments for about 5 minute…

Why do muscles need multiple heads? and are all the heads in some muscles attached all on the same bone, as far as I remember the triceps attaches at least in two different places at the superior end. into the coracoid process and the clavicle.but i wonder other muscules like one of the facial muscles that is a bipennate muscle probably has to attachments would it cause something to move in two different directions depending on which tendon it pulls on?

what exactly is an aponeurosis? is it a type of tendon tissue that holds together muscles? how is it different then fascia?for instance there is the palmar aponurosis and the palmar carpal fascia, they both seem like bands of cartilage going around the palm.

if you eat alot of healthy food along with a small amount of preservatives like monsoduium glutamate or carboxymethyl cellulose (TVDinner glue) going to make you absorb less preservatives then eating the same amount of preservatives but less food? I use carboxymethylcellulose in making art, we use it because it ph neutral. I feel like these things are really bad for your health but the people that can afford healthy food dont have to worry about it. if I cant afford healthy food I live in the city so I cant grow my own food how can I eat the food that I have and not absorb as much chemicals?like some people eat butter before drinking beer in order to not get as drunk so…

I had read an abstract that most heart attacks occur on Mondays. Is this a universal paradigm ? After all Sabbath for Christians is not the universal norm ? Or is this a statistical anomaly ?

I dont understand how could it attach at the sternum.that would mean it is above that part of the ribs. I understand how it could attach to the vertebra though. How many attachments does it have? this is the website where I found the information http://thewellnessdigest.com/diaphragm-muscle-anatomy-origin-insertion-action-and-innervation/

Hi all. Could the experiences, academic learning, general knowledge, memories be copied/transferred from and old fart to a youngster, by electrical¿? tapping, transplant of some brain tissue, replication or other ? Has it ever been tried in animals; is there enough knowledge about brain-memory to attempt such, or would have to be delayed for a guessy another century ? Please move to speculations if deserved.

I am currently trying to gather some data on characteristics of human tactile sensing limits (robotics essay) and i am having trouble. Right now i have: Spatial resolution 1mm (Loomis, 1980) Sensing minimum threshold 0.055g for men and 0.019g for women on the tip of fingers (Weinstein, 1968) Does anyone know if is there a research that says the resolution, maximum threshold etc? (Resolution is defined as the smallest change that can be detected by a sensor) Regards

What we see in dreams does not exist and yet we perceive entities as tangible in a dream state. Can we read a dream and is there clairvoyance associated with this extended reality ? What are the latest views on the subject ?

Does human topology have any link to predisposition to disease ? If we capture the silhouette of a person in 3D we can identify issues like pectus excavatum, obesity, stunted growth etc. for obvious reasons ? If we superimpose this silhoutte onto a normal persons trace we can see the deviation and presumably identify disease hotspots. Does any 3D imaging software replicate this ?

I was just struck by a physical effect that I don't know anything about - how does an ear detect many sounds simultaneously? I did a quick Google but nothing came quickly to light. I know generally how the ear works, but I guess something I don't understand is how different sounds are differentiated simultaneously. I suppose it's the same question as how a microphone detects sounds. When various sounds strike the ear membrane, it vibrates and transmits the vibrations via the ossicles to the cochlear and thence a variety of fine mechanisms to eventually result in signals to the brain. That much is easy enough as a general description. What I don't understand is how…

I have recently thought of new way to possibly treat cancer. This technique works by directly starving the tumor of its blood supply. This method works by finding out through imaging techniques exactly what small arteries are directly feeding the targeted tumor with blood. Once the arteries are identified, the arteries are injected with something that would cause the blood in the arteries to clot, forming a dam in the artery that prevents more blood from flowing through. This would prevent blood from getting to the tumor long enough for the tumor to die. One possible problem I have thought of for this procedure is if the blood clots formed in the arteries cause to…

Mods can delete the other post. Lets try these questions instead. What is the lowest possible ph of human urine? Are the kidneys capable of producing ultra low ph urine to help keep blood ph stable? To what degree can they do this? What mechanisms of acidosis could cause a urine ph of 4.1?

Is there any relation between shape of face and occupation ? Is there any correlation between shape of face and temperament ? Please opine.

Greetings, I'm new to this forum, and find the idea behind it to be quite appealing. Discussing scientific ideas fleshes them out and strengthens them considerably. Anyway, back on topic: I've been trying to elucidate which mechanisms of thermoregulation could be exploited to promote weight loss in overweight and obese patients. Thermoregulation, contrary to popular belief, appears to be a series of interconnected processes, which condition a thermic point of balance and not the other way around. However, it stands to reason that those individual thermoregulatory loops that pertain to, for instance, core temperature, exert more influence on the thermoregulatory effere…

In George Orwell's "Nineteen Eighty-Four," the main villain, O'Brien, tortures protagonist Winston Smith, not just until he started acting the way the Ingsoc Party wanted him to act, but until he thought the way they wanted him to think. Two sections of that book that stick in my head, verbatim, years after reading the book is ... and (while being electrotortured) This ultimately worked. Winston was eventually "cured," and he actually believed - he didn't just act, he actually believed - that the Ingsoc Party was perfect, that there is no reality outside what the Party recognizes, and that he was getting the execution he deserved. He loved Big Brot…

Pain is perceived by the nociceptors. This is the attribute of physical pain. How does this differ from emotional pain ? Are the same pathways involved ?

All of us have many dreams every night.Why do we only remember some of them? And what determines which ones we remember?

Better for guys at least, for their sperm. Is this true?