Prof. Luis Urrutia Morales Mg Sc Facultad Ciencias de la Salud

Presentación del tema: "Prof. Luis Urrutia Morales Mg Sc Facultad Ciencias de la Salud"— Transcripción de la presentación:

1 Prof. Luis Urrutia Morales Mg Sc Facultad Ciencias de la Salud
Clase: PIEL Y ANEXOS Prof. Luis Urrutia Morales Mg Sc Depto. Biomédico Facultad Ciencias de la Salud

2 Generalidades del Sistema Tegumentario
Se origina a partir del Ectodermo y Mesodermo embrionario Representa entre el 6 al 15 % del peso corporal (3-10 kg) Mide de 1,5 a 2 m² de extensión

3 Funciones del Sistema Tegumentario
Determina la forma del cuerpo Actúa como barrera (mecánica, química, física, etc.) Tiene función defensiva y reparativa Participa en la regulación térmica corporal Colabora en el equilibrio del agua Presenta una alta sensorialidad Secreción y absorción de diversos productos Organo de comunicación

4 Sistema Tegumentario (Piel y Anexos)
Epidermis Dermis Hipodermis (Tejido Subcutáneo) 2.- Anexos Receptores nerviosos Glándulas Sebáceas Glándulas Sudoríparas ecrinas Glándulas Sudoríparas apocrinas Glándulas Mamarias (*) Pelos y folículos Uña

5 Sistema Tegumentario (Piel y Anexos) Origen

6 Estructura de la Piel Epidermis Dermis Hipodermis
Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome!

7 Unión Dermo-epidérmica
Epidermis Epitelio de revestimiento Estratificado Escamoso keratinizado Membrana Basal Dermis Epidermis Unión Dermo-epidérmica Hipodermis Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome!

8 Está constituida por 2 de poblaciones celulares:
Epidermis Epitelio de revestimiento Estratificado escamoso keratinizado Está constituida por 2 de poblaciones celulares: 1.- Keratinocitos o células formadoras de queratina 2.- No Keratinocitos

9 Estratos de la Epidermis
1.- Keratinocitos Estratos de la Epidermis Estrato córneo Estrato lúcido Estrato granuloso Estrato espinoso Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome! Estrato basal Membrana basal

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11 Estratos de la Epidermis
Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome!

12 Estratos de la Epidermis
1.- Estrato Córneo: Queratina - 10 a 20 capas (piel delgada) - Sobre 100 capas (piel gruesa) 2.- Estrato Lúcido: Eleidina - 5 a 15 capas (sólo piel gruesa) 3.- Estrato Granuloso: Gránulos de keratohialina - 1 capa (piel delgada) - 4 a 12 capas (piel gruesa) 4.- Estrato Espinoso: - 5 a 7 capas (piel delgada) - 10 a 14 capas (piel gruesa) 5.- Estrato Basal (germinativo) - 1 capa Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome!

13 Estratos de la Epidermis
Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome!

14 2.- No Keratinocitos Melanocitos Célula de Merkel Célula de Langerhans
Linfocitos

15 2.- No Keratinocitos Melanocitos

16 Pigmentación de la piel:
Eumelanina (melanocitos) = pigmentación oscura Carotenoides (dermis) = pigmentación amarilla- anaranjada Oxihemoglobina (vasos sanguíneos) = pigmentación rojiza

17 2.- No Keratinocitos Melanocitos

18 2.- No Keratinocitos Melanocitos

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20 Radiación Ultravioleta (UV)
UV B UV C UV A Capa de Ozono Radiación UV Destruye DNA Promueve cáncer Producción de vitamina D Epidermis Dermis Permission to use this slide (a matter of academic integrity) *If you are Kevin Patton's current student, you may use any slide for your own personal educational purpose. **If you are a student not currently in Kevin's courses, you may use any slide for your own personal educational purpose and are also encouraged to feed the lions at ***If you are a teacher you may use any slide for your own nonprofit educational purpose and are also expected to feed the lions for each use of a slide. ****Commercial use is available only with Kevin's express written permission. © . All rights reserved. DO NOT REMOVE THIS COPYRIGHT NOTICE LINE. Feedback, suggestions, corrections are most welcome! Membrana Basal Hipodermis

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23 2.- No Keratinocitos Melanocitos

24 2.- No Keratinocitos Célula de Merkel

25 2.- No Keratinocitos Célula de Langerhans

26 2.- No Keratinocitos Célula de Langerhans

27 2.- No Keratinocitos Linfocitos