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TouchPosition and Movement and the Skin Senses
Tory Sparks, Ryan Main, Phoebe Wegmann
System located in the inner ear that allows us to make adjustments to bodily
movements and postures.
Disorders of this sense can cause extreme dizziness or disorientation.
Tells us how our bodies are postured and when we are moving.
Vestibular Sense
Utricles Fluid filled chamber in
the inner ear that detects changes in
gravity.
Head movement activates vestibular
system
Orienting ourselves to the environment.
Semicircular Canals
Fluid filled passages in the inner ear that detect movement of the head.
Movement causes hair cells to bend, sending information to the brain.
SacculeA bed of sensory cells
situated in the inner ear.
Translates head movements into
neural impulses which the brain can
interpret.
Kinesthetic Sense System of receptors located in the
muscles and joints that provides information about the location of the extremities.
Sense receptors located in the joints and muscles send information to the brain concerning muscle tension and joint perception: determine location of limbs.
Receptors connect to processing regions in the parietal lobe.
Highly involved in skilled activity, such as sports.
Phantom Limb Sensation
The sensation that an amputated or missing limb is still attached to the body and is in moving in accordance with the other limbs.
People with this condition also feel sensations from the missing limb, usually painful.
Cutaneous SenseSystem of receptors
located in the skin that provides information about touch, pressure, pain and temperature.
Pain: harmful stimulus- heat/cold, chemicals, break or invasion of skin.
ReceptorsA receptor is a free nerve
ending. Mechanoreceptors:
touch/pressureThermoreceptors:
temperatureNocioreceptors: painCutaneous receptors:
receptors on the skin that provide sensory information.
Gate Control Theory
Theory of pain stating that the release of substance P in the
spinal cord produces the sensation of pain. Endorphins block the
release of substance P. (i.e. “Runner’s High”)
AcupunctureEndorphins are responsible for
the pain-relieving effects of acupuncture.
Acupuncture is an alternative medicine methodology
originating in ancient China that treats patients by manipulating thin, solid needles that have been
inserted into acupuncture points in the skin
Lamaze Method
A method that prepares a mother for natural
childbirth; the pregnant woman (in classes and at home) practices (usually with the help of a coach)
and learns about the physiology of childbirth and
techniques of relaxation, concentration, and
breathing.
Congenital Analgesia
One or more conditions where a person cannot
feel and has never felt
physical pain.