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Touch. By: Hayley, Jennifer, Anton. Essential Questions. Can you explain an example of touch or skin related disorder? Can you notice the differences between vestibular, kinesthetic and cutaneous sense?. Vestibular Sense.

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touch

Touch

By: Hayley, Jennifer, Anton

essential questions
Essential Questions
  • Can you explain an example of touch or skin related disorder?
  • Can you notice the differences between vestibular, kinesthetic and cutaneous sense?
vestibular sense
Vestibular Sense
  • Vestibular Sense- a sensory system located in structures of the inner ear that registers the orientation of the head
  • Inner ear- The semicircular canals and cochlea, which form the organs of balance and hearing and are inside the temporal bone.
  • Semicircular canals-Three fluid-filled channels in the inner ear and they provide information about maintaining balance
  • Utricle- The larger of the two fluid-filled cavities forming part of the maze of the inner ear
  • Somato Sensory Cortex- A strip of the parietal lobe which controls the sense of touch
kinesthetic sense
Kinesthetic Sense
  • Kinesthetic sense- the sense of body position and movement of body parts relative to each other
  • Also called kinesthesis
  • Provides constant sensory feedback about what your muscles in your body are doing motor activities
  • The receptors for kinesthetic are in your joints, muscles, and tendons
  • The process happens naturally without any thought- Unless you are purposely learning movements for a new physical skill, like learning a new dance trick or swinging a golf club
    • This sense tells you which hand is closer to the phone when it rings
    • Makes you aware of you crossing your legs
    • Tells you whether to continue reaching for your cup before you knock it over
kinesthetic sense1
Kinesthetic Sense
  • Phantom Limb- the sensation that an amputated or missing limb is still attached to the body and is moving appropriately with other body parts but it’s not physically there
    • 2 out of 3 combat veterans report this feeling
  • This part of the brain is found in the parietal lobe
cutaneous sense
Cutaneous Sense
  • Cutaneous Sense- the faculty by which external objects or forces are perceived through contact with the body
  • Pain- dominates all other senses
    • Dealing with the pain- aspirin, ibuprofen, prescription narcotics- Morphine- mimics Endorphins
    • Pain tolerance- one study showed that people who were given the same electric shock, some were unaffected by it, where some felt a very painful sensation
    • Brain scans of people who have a very low tolerance for pain have a very active thalamus than people who have a high tolerance
  • Gate Control Theory- An explanation for pain control that proposes that we have a neural “gate” that can, under some circumstances block incoming pain signals
cutaneous receptors
Cutaneous Receptors
  • Cutaneous Receptors- A type of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system.
  • Cutaneous receptors include cutaneous mechanoreceptors, nociceptors (pain) and thermo receptors (temperature).
  • Mechanoreceptors- A sense organ or cell that responds to mechanical stimuli such as touch or sound
  • Thermoreceptors- a sensory receptor that responds to hot and cold
  • Nocireceptors- receptors that are sensitive to pain
cutaneous sense1
Cutaneous Sense

This illustrates the different types of Mechanoreceptors

common sensory disorders
Common Sensory Disorders
  • Julie Malloy- Hereditary sensory neuropathy type 2 (HSN2), a genetic disorder so rare that only 50 cases were reported in medical literature as of 2004
    • http://www.ydr.com/ci_15326760
acupuncture and lamaze
Acupuncture and Lamaze
  • Acupuncture- A system of complementary medicine that involves pricking the skin or tissues with needles, used to alleviate pain and to treat various physical, mental, and emotional conditions
  • Lamaze- relating to a method of childbirth involving exercises and breathing control to give pain relief without drugs