Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Touch

No description
by

Melody Zhang

on 24 February 2017

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Touch

TOUCH
What is touch?
skin sensation that results from an active or passive contact between a person's skin and an object
Receptors
Types
Gate control theory
Mechanoreceptors
Nerve cells that tell your brain
about tactile sensations; located
within your skin and soft tissue
Thermoreceptors
perceive temperature related sensations, specifically hot and cold
perceive sensations such as pressure, vibrations, and texture
Pain receptors
detect pain or stimuli that can or does cause damage to the skin and other tissues of the body
Proprioceptors
sense the position of the different parts of the body in relation to each other and the surrounding
Concentrations of Receptors
Endorphins
Touch receptors are heavily concentrated in the hands, feet, and lips
these are the body parts we use to interact with the world the most
Pain
Fast pathway
Pain signals travel along pathways through the body
Physical suffering or discomfort caused by illness or injury
environment
Signal travels directly to the spinal cord and back; similar to reflex
Slow pathway
Brain has time to process information received from touch receptors
Spinal cord contains a gate that either blocks pain signals or allows them to pass on to the brain

When you bang your head (gate is opened), you feel better after rubbing it (gate is closed)
When no input comes in, the gate is closed
When large-fiber stimulation happens (normal sensory input), the gate is closed
When small-fiber stimulation happens (pain reception), the gate is open
A neurotransmitter produced by the pituitary gland
Inhibit the transmission of pain signals and produce a feeling of euphoria ("runner's high")
Opiate drugs like morphine and codeine act similarly to endorphins
THE END
thank god
Full transcript