TYPES OF CUTANEOUS MECHANORECEPTORS AND RECEPTORS

Type I cutaneous mechanoreceptor

• Merkel discs/tactile discs 

•  Fingertips, hands, lips, and external genitalia

Type II cutaneous mechanoreceptors

• Ruffini corpuscle 

• Deep in the dermis, ligaments, and tendons, hands and soles 

• Sensitive to stretching

Corpuscles of Touch

TACTILE RECEPTORS (TOUCH)
- Dermal papillae of the hairless skin - Fingertips, hands, eyelids, tip of the tongue, lips, nipples, soles, clitoris, top of the penis 

Hair root plexuses

TACTILE RECEPTORS (TOUCH)

• Hairy skin

Lamellated Corpuscle

TACTILE RECEPTORS (PRESSURE)

• Adapt quickly, Widely distributed in the body

Corpuscles of touch

TACTILE RECEPTORS (VIBRATION)

• lower frequency

Lamellated corpuscles

TACTILE RECEPTORS (VIBRATION)

• higher frequency

ITCH

 stimulation of free nerve endings by chemicals

TICKLE

free nerve endings, arises only when someone touches you and not when you touch yourself