touch


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touch

 [tuch]
1. palpation with the finger.
2. in the nursing interventions classification, a nursing intervention defined as providing comfort and communication through purposeful tactile contact.
3. the sense by which contact of an object with the skin is recognized. Touch is actually not a single sense, but several. There are separate nerves in the skin to register heat, cold, pressure, pain, light touch, and coarse touch. These thousands of nerves are distributed unevenly over the body, so that some areas are more responsive to cold, others to pain, and others to heat or pressure. Each of these types of nerves has a different structure at the receiving end. A nerve for light touch has an elongated bulb-shaped end; one responsive to cold ends in a squat bulb; one that registers warmth ends with what look like twisted threads; and a nerve for deep pressure has an egg-shaped end. Pain receptors have no protective sheath.



If the sensory nerves were evenly distributed over the whole body, each square inch (6.5 square cm) of skin would have about 50 heat receptors, 8 for cold, 100 for touch, and 800 for pain. The sensitivity of a given spot depends in part on how thickly receptors of any one kind are clustered in that spot, and localization of a particular sensation depends on the concentration of the necessary nerve endings in the area. Light touch, pressure, and pain are sensations that can be localized quite accurately, but sensations of cold and heat are more diffuse.

The thickness of the skin in a given area and its supply of hairs also contribute to its touch sensitivity. A touch as light as one fifteen-thousandth of an ounce on the thin skin of the forehead can be felt, whereas a touch must be two and a half times as heavy to be felt on a fingertip. Hairs grow almost everywhere on the skin except the palms of the hands and the soles of the feet. They grow at a slant, and touch spots cluster in the skin near each of them. Even a light touch on the tip of a hair bends it back, and like a tiny lever it communicates the touch to the nerve endings.
therapeutic touch in the nursing interventions classification, a nursing intervention defined as attuning to the universal healing field, seeking to act as an instrument for healing influence, and using the natural sensitivity of the hands to gently focus and direct the intervention process.

touch

(tŭch),
1. The sense by which slight contact with the skin or mucous membrane is appreciated. Synonym(s): tactile sense
2. Digital examination.
[Fr. toucher]

touch

(tŭch)
n.
1. The physiological sense by which external objects or forces are perceived through contact with the body.
2. Digital examination.

touch

(tŭch)
1. The sense by which slight contact with the skin or mucous membrane is perceived.
2. Synonym(s): palpation (1) .
[Fr. toucher]

touch

(tŭch)
1. Sense by which slight contact with skin or mucous membrane is appreciated.
2. Digital examination.
[Fr. toucher]

Patient discussion about touch

Q. What could make the top of your head hurt to the touch. I don't have a headache. It just hurts when I touch It only hurts on the left side.

A. if it's a deep pain- it might be caused by a trauma to the bode. have you been hurt by something..? if you don't remember - it might be a memory loss from the hit to the head :)
if it's a sort of superficial pain- it might be caused of a wound there. ask someone to have a look and see if there's anything over there. it could even be a tic sitting there...

More discussions about touch
References in periodicals archive ?
According to unnamed industry sources speaking to Digitimes, the two touch module suppliers remain bullish even though "Apple may remove 3D touch sensors from all 2019 iPhone devices" because "orders for touch modules for legacy iPhone models as well as for new iPad and MacBook models will keep [them] busy in the second half of 2019."
The MIPI Touch family of specifications alleviates these challenges with a standardized write once approach, where developers require only a single command set to write a single device driver that can be used across operating systems for touch implementations in smartphones, tablets, PCs and automotive applications.
In order to become friendly with the public we started organising Mohalla Cricket program and when the audience will come to watch cricket we will gather them and try to educate about what is a good touch and what is a bad touch and whom to approach when such things happen with them," she said.
In their latest statement, Touch N Go has acknowledged that this PUD method is inconvenient and they will take steps to address this issue.
This is the time to include being touched in places where you are not supposed to be touched as a bad touch.
Squads involved were Percy Park Pirates, Blackadders, Yorkshire Thorns, Northumbria University, Catterick Crusaders, Wigan Touch Warriors, Hit N Run, Catterick Touch, Driffield, Nottingham Legends and Manchester Chargers.
The sense of touch comes from a network of nerve endings and special touch receptors on the surface of the skin.
Talking about the Touch Bar, Ive says the slim multi-touch strip is an effort at testing options like a larger multitouch trackpad and other approaches.
MIPI Touch is a natural evolution of the Alliance's strong heritage of advancing interface specifications that improve component integration in mobile devices.
The Display products range in size from 32 to 65 inches, while the PCAP Multi- Touch Systems products range in availability from 15 to 65 inches.
The new MultiSync X551UHD and X651UHD-2 InGlassTM touch displays are designed to be used as touch tables, making them ideal for industries where applications are used for creating, sharing and collaborating, such as entertainment, creative media, interactive gaming, education and corporate.
"Touch avoidance is a new concept in dermatology, and I think it's great because it really brings home a humanistic aspect to research," observed Dr.