Fisiologia de La Piel
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Transcript of Fisiologia de La Piel
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FISIOLOGIA DE LA PIEL
Raúl Admín Zamora Álvarez
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PIEL
ORGANO INSUSTITUIBLE
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INTEGRIDAD de la piel
CÈLULA
ORGANO
TEJIDO
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Órgano de la estética
BELLEZA DEL SER HUMANO
PAPEL ESTÉTICO
MOTIVO DE CONSULTA
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ELASTICIDAD
COHESION
INTEGRIDAD
BARRERA
INTELIGENTE
PROPIEDADES DE LA PIEL
RESISTENCIA A LA TRACCION
UNION DERMIS EPIDERMIS
UNA SOLA PIEZA
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PROPIEDADES DE LA PIEL
ELECTRICA
CARGA NEGATIVA
pH
MANTO LIPIDICO
AC. GRASOS
MANTO SUDORAL
AC. LACTICO, GLUTAMICO, ASPARTICO
MANTO GASEOSO
CO2
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BARRERA
INTELIGENTE
Órgano de protección
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Órgano de protección
PERMEABILIDADORIFICIOS
LIPOFÍLICO
IMPERMEABILIDADESTRATO CÓRNEO
HIDROFÓBICO
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Órgano de protección
MICROORGANISMOS
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Órgano de protección
MICROORGANISMOS
FLORA NATIVA
COLIFORMES
ESTAFILOCOCOS
ESTREPTOCOCOS
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Órgano de protección
MICROORGANISMOS
FLORA NATIVA
FLORA PATÓGENA
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Órgano de protección
FUERZAS MECANICAS
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Órgano de protección
FUERZAS MECANICAS
RESISTENCIA
PIEL
10-12 mm 10-12 Kg
COLÁGENO
50 Kg/mm2
ESPESOR
variable
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Órgano de protección
FUERZAS MECANICAS
ESPESOR
VARIABLE
HIPODERMIS
ABSORCION DE ENERGIA MECANICA
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Órgano de protección
FUERZAS MECANICAS
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RADIACIONES
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POTENCIAL NEGATIVOSECA-MOJADA
CONTACTO CON TIERRA
ELECTRICIDAD
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FUNCION SENSORIAL
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FUNCION SENSORIAL
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BARORRECEPTORES
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BARORRECEPTORES
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RUTAS NERVIOSAS
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FUNCION SENSORIAL
ORGANO ERÓGENO
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termorregulacion
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TERMORREGULACION
CONTROL NERVIOSO
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TERMORREGULACION
PRODUCCION DE CALOR
PERDIDA DE CALOR
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TERMORREGULACION
DISTRIBUCION DEL CALOR
ZONAS CALIENTES
ZONAS FRIAS
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TERMORREGULACION
VASOCONSTRICCION
PILOERECCION
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TERMORREGULACION
CONTROL
NERVIOSO
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IRRIGACION DE LA PIEL
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TERMORREGULACION
PILOERECCION
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REGULACION DEL AGUA Y ELECTROLITOS
METABOLISMO
CONTIENE
64%
RETIENE
17%
ELIMINA
6OO-1OOO cc/dia
CLORO
60%
SODIO
agua
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ORGANO EXCRETOR
METABOLISMO
ELIMINA
CO2
UREA
CREATININA
TÓXICOS
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VITAMINA D
METABOLISMO
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FUNCION QUERATÓGENA
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QUERATINA
INSOLUBLE
RESISTENTE A ACIDOS Y ALCALIS DEBILES
ENZIMAS
DETRUIDA POR EL CALOR
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FUNCION SEBACEA
LUBRICACION
MANTO ACIDO
VARIACIONES– EDAD– SEXO
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FUNCION SUDORIPARA
TERMORREGULACION
METABOLISMO HIDRO-SALINO
500-1000 ml/24 hrs
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FUNCION SUDORIPARA
GLANDULAS
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FUNCION SUDORIPARA
REGULACION
– CENTRAL
– PERIFERICA
SIMPATICO PARASIMPATICO
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Formación del sudor
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Formación del sudorACh
Ca++
Cl-Cl-
K+K+
Na
KCl-Cl-
Neg
NaNa
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Reabsorción tubular
ATPasa
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COMPOSICIÓN DEL SUDOR
99% AGUA
1% SOLUTOS
CLORURO 50 mEq/l
SODIO 50 mEq/l
POTASIO 14 mEq/l
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COMPOSICIÓN DEL SUDOR
SOLUTOS
Lactato
Urea
Amoniaco
Aminoacidos
(serina ornitina, citrulina, ac. Aspartico)
Compuestos organicos
(Histamina, Prostaglandinas, Vit K, )
Enzimas
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ESTIMULOS DEL SUDOR
TERMICA
PSIQUICA
GUSTATIVA
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FUNCIÓN MELANÓGENA
PIGMENTO PROTEICO
PROTECCION
CONTRA Rad UV
VARIA RAZA GENETICA AMBIENTALES REGION CORPORAL
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MELANÓGENA
TIROSINA
TIROSINASA
DOPAdioxifenilalanina
MELANINA
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Distribución de la melanina
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FUNCIÓN MELANÓGENA
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MELANÓGENA
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MELANÓGENA
FOTOPROTECCIÓN:
Pigmentación y engrosamiento de la capa córnea
Reparación del ADN Formación de sustancias filtrantes de UV
Activación de los antioxidantes
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GRACIAS…
Raúl Admín Zamora Álvarez