7
votes
Accepted
What's this about Chemical-Warfare?! Nerve agents?! What's the difference between VX and Sarin?
Both are organo-phosphorous/phosphate compounds, and both act by inhibiting acetylcholinesterase, leading to sustained muscle contraction and usually death by asphyxiation.
Sarin however is much ...
- 121
4
votes
Does intense pain cause people to lose consciousness?
TL:DR: No, not usually.
It this true or at least possible?
It is possible, but it is not common. People in an incredible amount of pain most often endure it without passing out. Others pass out at ...
- 8,852
4
votes
Accepted
What is the difference between Axon terminal and Synapses
If you have a look at one of the most famous reference book in neuroscience "Principles of neural science" by Kandel (Fifth Edition), on page 22:
There is this figure:
And here is the description of ...
- 905
3
votes
Accepted
What does "axonal features" mean?
Axonal features means that there is evidence to suggest damage to the axon as opposed to the myelin sheath.
Essentially axonal damage leads to a reduction of amplitude with preservation of nerve ...
- 13.2k
3
votes
Is there any intelligence in heart?
The heart is not a center of intellect, it's a multi-chambered pump made primarily out of muscle.
There are however "heart signals", at least in a sense. The Sinoatrial Node is a specialized group ...
- 1,262
3
votes
How does apnea trigger the urge to breathe?
The term for "high CO2" is "partial CO2 pressure (PaCO2)". During hypoxemia -a condition that commonly occurs during apneas- arterial PaCO2 is increased, and arterial PaO2 ...
- 131
2
votes
What ingredients in this list are causing my hands to get warm? (improve circulation to my fingers)
The ingredients one by one
Sorbitol:
An alcohol sugar, and a sugar substitute. However, xylitol has become more widely used because a few type of bacteria (Streptococcus mutans) can process sorbitol ...
- 6,722
2
votes
How does apnea trigger the urge to breathe?
Medulla is the part of brain which controls respiration. There is a special chemosensitive area in ventrolateral medulla which has chemoreceptors to detect increased CO2 or Hydrogen ions in brain ...
- 21
1
vote
Accepted
What ingredients in this list are causing my hands to get warm? (improve circulation to my fingers)
EDIT: Its thoracic outlet syndrome. If I do certain stretches it goes away
Old:
So I looked into it, and I found those ingredients are actually good for "carpel tunnel" which has been found to be ...
1
vote
What ingredients in this list are causing my hands to get warm? (improve circulation to my fingers)
Your experience that alcohol warms your fingers and the fact that the drug nifedipine is used in Raynaud's symptoms relief suggest that the mechanism involved in warming fingers is vasodilation.
From ...
- 15.7k
1
vote
How long can vestibular neuritis last?
There are four different types of labyrinthitis (or vestibular neuritis):
mastoiditis
usually caused by untreatedOtitis Media, middle ear infection
lueslabyrinthitis
usually caused by a luetic ...
- 6,722
1
vote
Why am I feeling too weak that can’t stand up after seeing new syllabus before two days of exam?
It is safest to be evaluated by a medical professional. The rules of HealthSE don't permit personal health advice questions. If you are still experiencing symptoms - as above, get seen urgently or ...
- 176
1
vote
Fibromyalgia and Neuroplasticity
In general, for various kinds of pain, you can re-train your brain to block some of the pain signals coming from your body in various ways: TENS, biofeedback, meditation, massage, guided imagery are ...
1
vote
Is there a negative counterpart to endorphins?
Endorphins are neuropeptides that can bind to opioid receptors, thus exerting an analgesic effect in the brain. You mention a counterpart, which is a badly defined concept in this context. There are ...
- 7,001
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