Exteroreceptors

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Last updated 6:03 PM on 2/17/26
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7 Terms

1
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Exteroceptors

Info about ext enviro

Randomly distributed near body surface

Most sensi - tongue

Least sensi - back

2
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Meissner's corpusle

Touch and vibration

Covered by connective tissue in dermal papilla

Palms, soles, fingers

3
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Merkel's disc

Touch and pressure

Sensitive

Epidermis

No hair follicles

4
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Root hair plexus

Surrounds hair root

Adapts quickly

5
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Pacinian corpusle

Deep pressure and vib

CT layers like onion

Anterior spinothalamic tract

6
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Thermoreceptors

Heat and cold

Free nerve ending

Lateral spinothalamic tract

7
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Pain receptors

Nociceptors

Lateral spinothalmic

Myelinated cause fast, sharp pain

Unmyelinated cause deep, generalized