1 Prof. Luis Urrutia Morales Mg Sc Facultad Ciencias de la SaludClase: PIEL Y ANEXOS Prof. Luis Urrutia Morales Mg Sc Depto. Biomédico Facultad Ciencias de la Salud
2 Generalidades del Sistema TegumentarioSe 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 TegumentarioDetermina 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 HipodermisPermission 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-epidérmicaEpidermis 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 Epidermis1.- 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 EpidermisPermission 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 Epidermis1.- 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 EpidermisPermission 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 LangerhansLinfocitos
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