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20 votes
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How can tooth enamel feel pain when drilled by a dentist?

Yes you are right. It is the dentin. Enamel has got no nerves. So when the dentist use his/her instrument, initially there is no pain (if the enamel is intact). The next layer is dentin. As you said, ...
Ojasvi's user avatar
  • 846
16 votes
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Is it possible to feel pain in some part of a body, but the pain "feeling" is introduced somewhere else?

Yes, this is pretty common. Examples include sciatica, pain felt down the back of a leg to the foot, from irritation to components of the sciatic nerve but commonly at the level of the sciatic ...
Graham Chiu's user avatar
14 votes
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Inability of vultures to digest diclofenac

Via: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1618889/ Post-mortem examination revealed extensive visceral gout in all diclofenac-treated birds (see electronic supplementary material). ...
Alex Reynolds's user avatar
8 votes

Do oysters feel pain?

It is very unlikely that oysters feel pain however it's not clear what the question actually means What does it mean to say something feels pain? The most reductive biological interpretation is to ...
Jack Aidley's user avatar
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6 votes

Is it possible to feel pain in some part of a body, but the pain "feeling" is introduced somewhere else?

An example of pain evoked by distant sites in the body is referred pain. It's defined as pain perceived at a location other than the site of the painful stimulus. An example is the case of angina ...
AliceD's user avatar
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6 votes

Why is burn feeling 'slower' than touch?

When you touch an object, a compression wave from the collision travels through your body at the speed of sound. A sensor at any depth in your skin can pick up that signal at roughly the same time as ...
BowlOfRed's user avatar
  • 214
6 votes
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Do beavers' tails hurt from being dragged?

No, it does not, otherwise beavers wouldn't walk with their tails dragging. Here is a picture of the bottom of a beaver's tail: Found here and here is a closeup (probably of the top, but they're very ...
MattDMo's user avatar
  • 15.3k
5 votes

Do lobsters possess a nervous system to feel pain?

To answer if lobsters have a nervous system: YES References: Mapping of serotonin-like immunoreactivity in the lobster nervous system BS Beltz, EA Kravitz Journal of Neuroscience 1 March 1983, 3 (3)...
Antony's user avatar
  • 153
5 votes

Is it possible to feel pain in some part of a body, but the pain "feeling" is introduced somewhere else?

Another common medical condition that causes pain elsewhere is the spinal disc herniation. The disc pushes against the nerves in the spinal and causes pain, usually in the leg, foot or arm. https://en....
RHA's user avatar
  • 3,685
5 votes

Do lobsters possess a nervous system to feel pain?

Yes they feel pain, at least in certain areas of their body without a doubt. Research has been done to test whether they feel pain consciously (a signal to the brain that is perceived allows for ...
John's user avatar
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4 votes
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At what stage is the nervous system developed enough to interpret neuronal signals as 'pain'?

First, there is some confusion on your part about heart cells and pain perception. Heart cells generate an action potential intrinsically; they do not need the central nervous system to beat (your ...
anongoodnurse's user avatar
4 votes

Does spinal cord have pain receptors?

tl;dr Like the brain, the receptors commonly called 'pain' receptors aren't in the spinal cord itself, but they are present in the meninges around the cord, and damage to the cord can be perceived as ...
De Novo's user avatar
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3 votes
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Laparoscopic surgery: Why did the gas cause pain in my shoulder, and how did it escape my body?

Does CO2 cause pain? CO2 can cause pain by applying pressure on the diaphragm; also stretching of the diaphragm due to the body position can irritate the phrenic nerve (Indian Journal of Surgery). ...
Jan's user avatar
  • 8,089
3 votes

Do oysters feel pain?

Referring to this research article on PubMed, oysters have their sensory system and organisation like humans. So any change or invasion in the system of Oyster is communicated through sensory organs. ...
Vishal Kumar Sahu's user avatar
3 votes
Accepted

How do we share pain?

There has been a study by Jackson, Meltzoff & Decety (2005) who investigated the neurocorrelates involved in the perception of pain. In order to assess this, they carried out an fMRI study in ...
Ebbinghaus's user avatar
  • 2,603
2 votes

Do ants feel pain?

In short, scientists usually conclude that pain is unlikely to be found in insects in the way it is defined in humans, but this is difficult or impossible to test directly. In humans, pain is often ...
Nakx's user avatar
  • 375
2 votes

Can one die from pain?

The evolutionary functional answer here is probably not right. 'Expecting biology to behave a certain way is not a safe bet!' Its a common misconception that all living things are designed to endure ...
shigeta's user avatar
  • 28.3k
2 votes

Reseach on feeling pain of other people

The OP might be asking about what is called mirror touch synaesthesia Like all synaesthesia [also spelled synesthesia] this is a new area of research. I have synaesthesia but I don't have this kind. ...
Snack_Food_Termite's user avatar
2 votes

Is it possible to feel pain in some part of a body, but the pain "feeling" is introduced somewhere else?

Just as an FYI, the answer is emphatically yes. I have two separate areas of my body which exhibit those symptoms. But my answer does not "track" those of others here. They talk about (I would ...
Cbohica's user avatar
  • 29
2 votes
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Results of self-administration study about pain in honeybees?

The paper shows that honeybees prefer sucrose (sugar) solution to a sucrose+morphine (pain reducing) solution. They find that injuring the bees (i.e., potentially causing pain) does not change the ...
Bryan Krause's user avatar
  • 46.1k
2 votes

Is it the theory of the 5 senses obsolete?

It depends who's counting and according to what criteria. Some neuroscientists argue that smell and taste are one sense because altering one produces substantial changes in the other. Conversely, if ...
got trolled too much this week's user avatar
2 votes

What happens when someone is subjected to extreme pain beyond any pain tolerance?

The full definition for pain tolerance provided by the link you gave is: The maximum intensity of a pain-producing stimulus that a subject is willing to accept in a given situation. [emphasis added] ...
E Tam's user avatar
  • 852
1 vote

Surface perception

1) Discerning between solid and granular It is the distribution of the touch receptors in your skin that enables the distinction between solid and granular objects. The ability to recognize two ...
Jan's user avatar
  • 8,089
1 vote

How do NSAID's work and what are the differnces between COX-1 and COX-2?

NSAIDs work by inhibiting COX-1 and/or COX-2. These are the key enzymes in prostaglandin biosynthesis. Prostaglandins act as messenger molecules in the process of inflammation and therefore can cause ...
cako's user avatar
  • 141
1 vote

At what stage is the nervous system developed enough to interpret neuronal signals as 'pain'?

Development isn't my area of expertise within neuroscience, but without evaluating each of your sources (note: it might be better to read actual scientific articles; live science and especially ...
Bryan Krause's user avatar
  • 46.1k
1 vote
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What makes a rotator cuff tear symptomatic in humans?

The underlying reason is difference in the rate of firing of torned and intact muscle in movement of shoulder joint. Asymptomatic patients had minimal pain (<3 on the visual analog scale and no ...
JM97's user avatar
  • 4,836
1 vote

Why pain caused by blunt objects vanish after some time and return at the event of touching?

BASIC REASON WHY THE PAIN DISAPPEARS FOR SOMETIME: There are gating mechanisms involving pain both in the spinal cord and in the brain. Although the pain gating pathways in the brain are multifold ...
user 33690's user avatar
  • 1,955
1 vote

What is the cause that angina pectoris is felt in your left arm?

The association between a heart attack and arm pain appears to be strange since the arm is usually not harmed. The reason for the pain in the arm is that the pericardium is innervated by the phrenic ...
Beautymedi's user avatar

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