TEMA 4. FISIOLOGÍA
SENSORIAL:
RECEPTORES
Jennifer Martín Rivera
Jennifer Martín Rivera
, CLASIFICACIÓN INFO.
SENSORIAL
ESTÍMULOS N
= PA
RECEPTORES TRANSDUCCIÓN SENSOR
• PRIMARIOS: Según tipo de info. hacia el cerebro:
neurona TERMORRECEPTORES
sensitiva.
• SECUNDARIOS:
receptor sinapta
con neurona
sensitiva.
MECANORRECEPTORES
Jennifer Martín Rivera
Según localización:
Según tipo de energía del estímulo:
5. MECANORRECEPTORES: presión, tacto, vibración.
- Corpúsculos (Pacini, Meissner, Ruffini)
- Husos musculares y OTG.
- Receptores cocleares y vestibulares (audición y equili
- Barorreceptores (presión arterial).
6. TERMORRECEPTORES: temperatura.
7. FOTORRECEPTORES: visión. - Conos y bastones.
8. QUIMIORRECEPTORES: alimentos (papilas gustativas), olo
gases (carótida y aorta) y pH (bulbo raquídeo).
9. NOCICEPTORES: dolor (piel y tejidos).
, POTENCIAL RECEPTOR
Codificación de intensidad: determinan ritmo y patrón de PA a través de la frec. proporcional a
liberación de neurotransmisores.
Célula sensorial convierte señal en cambio
eléctrico que entra a través de canales
iónicos.
TRANSDUCCIÓN EN 3 RECEPTORES:
Jennifer Martín Rivera
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