The forehead and fingertips are the most sensitive parts to pain, according to the first map created by scientists of how the ability to feel pain varies across the human body.
The receptors in our skin are not distributed in a uniform way around our bodies. Some places, such as our fingers and lips, have more touch receptors than other parts of our body, such as our backs. That is one reason why we are more sensitive to touch on our fingers and face than on our backs.
Detailed Solution. The correct answer is Brain. Brain organs will not feel any pain on being pricked by a needle. The brain is a painless organ.
Some areas of the skin contain more nerve endings than others. For example, the fingertips and toes contain many nerves and are extremely sensitive to touch.
The tongue, lips, and fingertips are the most touch- sensitive parts of the body, the trunk the least. Each fingertip has more than 3,000 touch receptors, many of which respond primarily to pressure.
We must remember that the most delicate organ in the human body is the brain. Brain is one of the largest and most complex organs of the human body and is made up of more than 100 billion nerves. Brain controls speech, thought, memory, movement and helps in the functioning of many organs in the human body.
The link between pleasure and pain is deeply rooted in our biology. For a start, all pain causes the central nervous system to release endorphins – proteins which act to block pain and work in a similar way to opiates such as morphine to induce feelings of euphoria.
While mammals and birds possess the prerequisite neural architecture for phenomenal consciousness, it is concluded that fish lack these essential characteristics and hence do not feel pain.
The wild wriggling and squirming fish do when they're hooked and pulled from the water during catch-and-release fishing isn't just an automatic response—it's a conscious reaction to the pain they feel when a hook pierces their lips, jaws, or body.
Two lasers were used to inflict the sensation of a pin prick to assess the state of sensory nerves on the body to determine if the subjects could identify exactly where they felt pain. Those results showed that the areas of the body that are most sensitive to pain are the fingertips and the forehead.
The part of the body that has the most nerve endings is probably the fingertips. Each fingertip contains approximately 3,000 nerve endings called Meissner's corpuscles, which are designed to detect light touch and vibration.
Trigeminal neuralgia most commonly involves the middle branch (the maxillary nerve or V2) and lower branch (mandibular nerve or V3) of the trigeminal nerve. An individual attack usually lasts from a few seconds to several minutes or hours, but these can repeat for hours with very short intervals between attacks.
Areas including the fingertips, lips, and tongue have very high resolution, and therefore are the most sensitive. Other areas like the forearms, calves, and back are the least sensitive.
The pain caused by pressure on the trigeminal nerve has been described as the most agonising known to humankind, but what does the nerve actually do? The number of injuries and illnesses associated with pain is inestimable.
Given that plants do not have pain receptors, nerves, or a brain, they do not feel pain as we members of the animal kingdom understand it. Uprooting a carrot or trimming a hedge is not a form of botanical torture, and you can bite into that apple without worry.
Darwin thought monkeys and elephants wept. But modern scientists believe the only animal to really break down in tears is us. So why do we do it, and why do we change the way we cry as we grow older?
They react differently when external stimuli are applied while sleeping and while awake. But the bullfrog, Lithobates catesbeianus show the same reaction in both situations. This indicates that bullfrogs do not sleep. Lithobates catesbeianus is an animal that cannot sleep.
The pain inflicted can be physical, like hair-pulling, whipping, clamps, or temperature play, or emotional, through humiliation or total submission. Those who enjoy inflicting this pain are called sadists or tops, while those who enjoy feeling this pain are called masochists or bottoms.
Love – perhaps the strongest of all positive emotions, love is a feeling of deep and enduring affection for someone, along with a willingness to put their needs ahead of your own; it can be directed towards an individual, a group of people, or even all humanity.
It is often said that there is a fine line between pleasure and pain. From a pharmacological point of view, this fine line might be balanced by opioid neurotransmitter pathways.
The Stapedius, the smallest skeletal muscle in the human body, which is about 1 mm in length, is regarded to be the weakest muscle. It originates from a prominence known as the pyramidal eminence at the posterior edge of the tympanic cavity. It inserts into the stapes' neck.