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Rehab Final part 130 cards
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1. mechanoreceptors 2. thermoreceptors 3. nocioceptors 4. chemoreceptors 5. photic
mechano - responding to mechanical deformation of the receptor or surrounding area (pressure) thermo - changes in temp.
nocioceptors - noxious stimuli and result in perception of pain. chemoreceptors - respond to chemical substances, and responsible for taste, smell, 02 levels in the blood, CO2 concentration, osmolarity - concentration gradient of body fluids.
respond to light within the visible spectrum.
in the terminal portion of afferent fiber
perception of pain, temperature, touch, pressure, tickle, and itch sensations.
2 point - discrimination localized touch
Krause's end bulbs
recognition of texture
What type of cutaneous receptor os found in the subcutaneous tissue of skin & deep tissues of body? and how is it stimulated?
Pacinian corpuscles stimulated by rapid movement of tissues
In what type of perception does the Pacinian corpuscles of cutaneous receptors play a significant role in?
perception of deep touch & vibration
muscles, tendons, and joints.
posture position sense proprioception muscle tone speed & direction of movement
muscle spindle golgi tendon organs free nerve endings pacinian corpuscles joint receptors
monitor changes in muscle length, position and movement sense motor learning
fascia of muscle
muscle receptors and joint receptors
vibratory deep pressure
the rate of joint movement
pain temp tickle itch sexual sensations
Fibers of the spinothalamic pathway crosses _______, ascends up ________, through the ______, ________, & _______ to the ventroposterolateral nucleus of the thalamus.
immediately SC medulla, pons, and midbrain
What are the three categories of anteriorlateral spinothalamic tracts and what is each responsible for?
1. Anterior (ventral) spinothalamic tract - sensation of crudely localized touch & pressure. 2. Lateral Spinothalamic tract - pain & temp. 3. Spinoreticular tract - diffuse pain sensations.
trasmission of discriminative sensations recorded from specialized mechanoreceptors?
what type fine gradation of intensity and precise localization on the body surface are mediated by the dorsal column medial lemniscle pathway?
discriminative touch stereognosis tactile pressure barognosis graphesthesia recognition of texture kinesthesia 2-point discrimination proprioception vibration
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