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

(tuch)
1. the sense by which contact with objects gives evidence as to certain of their qualities.
2. palpation with the finger.

therapeutic touch  (TT) a healing method based on the premise that the body possesses an energy field that can be affected by the focused intention of the healer. The practitioner uses the hands to assess the patient's energy field, to release areas where the free flow of energy is blocked, and to balance the patient's energy, by transferring energy from a universal life energy force to the patient.

touch

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

touch1

[tuch]
Etymology: Fr, toucher, to touch
1 n, the ability to feel objects and to distinguish their various characteristics; the tactile sense.
2 n, the ability to perceive pressure when it is exerted on the skin or mucosa of the body.
3 v, to palpate or examine with the hand.

touch2

a nursing intervention from the Nursing Interventions Classification (NIC) defined as providing comfort and communication through purposeful tactile contact. See also Nursing Interventions Classification.
enlarge picture
Technique for testing light touch

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]

touch,

n the sense by which contact with an object provides evidence of its properties.
touch, light,
n tactile sense. The principal organs of light touch are Meissner's corpuscles, which are large and oval. Each capsule receives several nerve fibers that shed their myelin sheaths and coil into a spiral complex network. Associated with Meissner's corpuscles in the perception of light touch are both Merkel's disks and a basketlike arrangement of nerve fibers around the hair follicles.

touch

1. the sense by which contact of an object with the skin is recognized.
2. palpation with the finger.
Touch is actually not a single sense, but several. There are separate nerves in the skin to register heat, cold, pressure, pain and 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 touch nerve has an elongated bulb-shaped end, and a nerve responsive to cold a squat bulb; the nerve that registers warmth has what looks like twisted threads, and the nerve for deep pressure has an egg-shaped end. Pain receptors have no protective sheath.

touch receptors
see sense.

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 ?
We are excited and honored to partner with the Texas SID Chapter for this event and hope to share new knowledge and understanding with our guests that will better equip them for changes and developments in the world of touch screen technology," says Michael Woolstrum, Touch International CEO.
From birth on, parents can offer nurturing touch in response to the baby's capacity and willingness to accept it.
Keeping the nose over the knees, the hurdler will touch down on the ball of the foot (very important), with the center of gravity in front of the touch-down foot (Photos 1, 4-6).
This changes when hands clasping in prayer become hands grasping for the apple, in an association that contributed to the idea that women were not to touch the consecrated host, just as Magdalen (though not Thomas) was enjoined by a wounded, redemptive Jesus to keep her hands off.
We brought old cuts and healed gashes home from school or camp in the hopes that someone would touch, kiss, or hug them.
Frequently, even the elderly accept this form of stereotyping and therefore do not expect to have their touch needs met.
Only eight of 36 children who underwent the genital exam remembered vaginal touching through free recall and six through doll demonstrations; four children correctly reported anal touch in free recall and in demonstrations.
A dual screen sketch book exploring novel ways to utilize multi-touch touch screens in retail kiosks in partnership with market leaders Frank Mayer (www.
Increased Number of Corporate Buyers 15 Increased Applications of Multi-touch 15 Most Technologies are Touch Object Independent 16 HINDRANCES 16 Average Cost 16 Frequent Calibration Required 16 Shortage of Indium-Tin-Oxide 16 OPPORTUNITIES 17 Emerging Retail, Media and Advertising Applications 17 Highly Evolving Replacement Market for the Education Sector 17 Multi-touch Devices with Gesture Recognition Technology 17 Combination with Video Calling and 3D Imaging 17 INDUSTRY CHALLENGES 17 MEASURING THE Z-AXIS 17 PROFILE HEIGHT 18 UNEVEN GEOGRAPHIC DISTRIBUTION OF SUPPLIERS 18 KEY STRATEGIES 18 BACKWARD INTEGRATION FOR SYSTEM AGGREGATORS 18 PARTNERING WITH COMPANIES WITH HIGH GROSSING PRODUCTS/TECHNOLOGIES 18
This conference is a gathering of industry leaders from the touchscreen display market," explains Michael McNally, Southwest Regional Sales Manager for Touch International.
The touch screens can be operated in seven languages, including Spanish, Tagalog and Vietnamese.
The coach can repeat a pitch with a simple indicating device, such as a touch of the lips.