Term
| Free Nerve endings of sensory neurons |
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Definition
Unencapsulated
L: exteroceptors, interoceptors, and proprioceptors
S: thermoreceptors (warm and cool), chemoreceptors (itch, pH..)
Body L: most body tissues; most dense in connective tissues (ligaments, tendons, joint capsules) and epithelia (epidermis) |
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Term
| Modified free nerve endings: Merkel disc (tactile discs) |
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Definition
Unencapsulated
L: Exteroceptors
S: Mechanoreceptors (light pressure); slowly adapting
Body Location: basal layer of epidermis of skin |
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Term
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Definition
Unencapsulated
L: Exterocrptors
S: Mechanoreceptors (hair deflection); rapidly adapting
Body Location: in and surrounding hair follicles |
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Term
| Meissner's corpuscles (tactile corpuscles) |
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Definition
Encapsulated
L: Exteroceptors
S: Mechanoreceptors (light pressure, discriminative touch, vibration of low frequency); rapidly adapting
Body Location: Dermal papillae of hairless skin, particularly nipples, external genitalia, fingertips, soles of feet, eyelids |
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Term
| Pacinian corpuscles (lamallated corpuscles) |
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Definition
Encapsulated
L:Exteroceptors, interoceptors, and some proprioceptors
S: Mechanoreceptors (deep pressure, stretch, vibration of high frequency); rapidly adapting
Body Location: dermis and hypodermis; periostea, mesentery, tendons, ligaments, joint capsules; most abundant on fingers, soles of feet, external genitalia, nipples |
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Term
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Definition
Encapsulated
L:Exteroceptors and proprioceptors
S:Mechanoreceptors (deep pressure and stretch); slowly adapting
Body Location: Deep in dermis, hypodermis, and joint capsules |
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Term
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Definition
Encapsulated
L:Proprioceptors
S:Mechanoreceptors(muscle stretch, length)
Body Location: Skeletal muscles, particularly those of the extremities |
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Term
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Definition
Encapsulated
L:Proprioceptrs
S: Mechanoreceptors (tendon stretch, tension)
Body Location: Tendons |
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Term
| Joint Kinesthetic receptors |
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Definition
Encapsulated
L: Proprioceptors
S:Mechanoreceptors and nocioceptors
Body Location: Joint capsules of synovial joints |
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