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DLAKA (PILI, TRIHOS)
Boja- od
1. kolicine melanine i
2. vazduha u dlaci
Orozale struture koje se nalaze na celoj povrsini koze sem:
1. DLANOVA
2. TABANA
3. DISTALNIH FALANGI dorz str prstiju
4. UN STR PREPUCIJUMA, GLANS
5. UN STR MALIH I VELIKIH USANA
□Prema stepenu zrelosti
1. LANUGO fetalne dlake koje se krajem fetalnog zivota
zamenjuju VELUS i TERMINALNIM DLAKAMA
2. VELUS DLAKE kratke, tanke
Bez medule , pokrivaju veci deo tela
3. TERMINALNE DLAKE duze, deblje
KAPILICIJUM, BRADA
TREPAVICE, OBRVE
U pubertetu nastaju seksualne terminalne dlake - AKSILE,
PUBICNA, PERIGENITALNA, PERIANALNA REGIJA
GRUDI, EKTRITETI MUSKARACA
(one rastu pod uticajem androgena- androgen zavisne dlake)
__________________________________________
□Naziv dlake prema lokalizaciji
1. Capili - na kozi glave
2. Barba- na bradi
3. Hirci - u aksilama
4. PubesM, CrinesZ - oko genitalija
5. Cilie - trepavice
6. Supercilie - obrve
7. Vibrise - u nosu
8. Tragi - u sp usnom kanalu
__________________________________________
FOLIKUL tubarna invaginacina epiderma u koju je smesten koren dlake
STABLJIKA DLAKE deo dlake iznad koze
KOKREN DLAKE deo dlake koji je u folikuku
PILOSEBACEALNI APARAT
1. Folikul
2. Gl misic m.arector pili(z.zid folikula)
3. Sebacealna zlezda (otvara se u folikil)
__________________________________________
□GRADJA izmenje celije epiderma
□3 SLOJA
1. UN.SLOJ MEDULA
1-2 REDA NEPOTP OROZALIH CELIJA(OSTACI JEDRA,MELANIN,TRIHOHIJALIN)
2. SR.SLOJ KORTEKS
VISE REDOVA CELIJA MORF RAZLICITIH
(MELANIN, SUMPOR, KERATINSKI TONOFILAMENTI)
- jedra samo u bulbusnom delu korpusa dok se celije iznad keratinizuju
3. SP. SLOJ KUTIKULA
1 RED CELIJA KAO CREP NA KROVU(bogate sumporom)
__________________________________________
□GRADJA BULBUSA
□EPITELNI I VEZIVNI DEO
EP DEO
1. UN OMOTAC KORENA DLAKE
PRVA STRUKTURA KOJA OROZAVA- KALUP ZA FORMIRANJE
DLAKE(koncentricno rasporedjene celije iz kojih ce nastati
medula, korteks, kutikula)
2. SP. OMOTAC KORENA DLAKE
Na dnu se nalazi udibljenje za
KAPILARE(ishrana dlake)
NERVNA VL
M. ARECTOR PILI
PRAZNJENJE SEBACEALNE ZLEZDE
__________________________________________
□CIKLUS RASTA TERMINALNIH DLAKA
- mitotskim deobama iz MATRIX PILI (spoj folikula i korena
dlake)
1. ANAGENA FAZA (AKTIVNI RAST)
Traje 3-6 godina
2. KATAGENA FAZA (INVOLUCIJA FOLIKULA) do 30 DANA
3. TELOGENA FAZA (FAZA ISPADANJA DLAKE) 3-6 MESECI
85% DLAKA se nalazi u ANAGENU
1% KATAGEN
15% TELOGEN
SVAKI FOLIKUL IMA NEZAVISTAN CIKLUS
DUZINA ZIVOTA DLAKA NA RAZL DELOVIMA TELA NIJE ISTA
RUKA, NOGA - 1M
TREPAVICE, OBRVE 3M
KAPILICIJUM 3-6G
__________________________________________
Posle isteka zivota dlake tj. Kada bulbus u potpunosti oroza --
--> DLAKA SE ODVAJA OD PALILE
a epitel folikula mitotskim deobama stvara EPITELNI
TRACAK BUDUCE DLAKE
MITOTSKA AKTIVNOST STIMULISANA POLNIM
HORMONIMA.
__________________________________________

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DLAKA.pptx

  • 1. DLAKA (PILI, TRIHOS) Boja- od 1. kolicine melanine i 2. vazduha u dlaci Orozale struture koje se nalaze na celoj povrsini koze sem: 1. DLANOVA 2. TABANA 3. DISTALNIH FALANGI dorz str prstiju 4. UN STR PREPUCIJUMA, GLANS 5. UN STR MALIH I VELIKIH USANA □Prema stepenu zrelosti 1. LANUGO fetalne dlake koje se krajem fetalnog zivota zamenjuju VELUS i TERMINALNIM DLAKAMA 2. VELUS DLAKE kratke, tanke Bez medule , pokrivaju veci deo tela
  • 2. 3. TERMINALNE DLAKE duze, deblje KAPILICIJUM, BRADA TREPAVICE, OBRVE U pubertetu nastaju seksualne terminalne dlake - AKSILE, PUBICNA, PERIGENITALNA, PERIANALNA REGIJA GRUDI, EKTRITETI MUSKARACA (one rastu pod uticajem androgena- androgen zavisne dlake) __________________________________________ □Naziv dlake prema lokalizaciji 1. Capili - na kozi glave 2. Barba- na bradi 3. Hirci - u aksilama 4. PubesM, CrinesZ - oko genitalija 5. Cilie - trepavice 6. Supercilie - obrve 7. Vibrise - u nosu 8. Tragi - u sp usnom kanalu __________________________________________
  • 3. FOLIKUL tubarna invaginacina epiderma u koju je smesten koren dlake STABLJIKA DLAKE deo dlake iznad koze KOKREN DLAKE deo dlake koji je u folikuku PILOSEBACEALNI APARAT 1. Folikul 2. Gl misic m.arector pili(z.zid folikula) 3. Sebacealna zlezda (otvara se u folikil) __________________________________________ □GRADJA izmenje celije epiderma □3 SLOJA 1. UN.SLOJ MEDULA 1-2 REDA NEPOTP OROZALIH CELIJA(OSTACI JEDRA,MELANIN,TRIHOHIJALIN) 2. SR.SLOJ KORTEKS VISE REDOVA CELIJA MORF RAZLICITIH (MELANIN, SUMPOR, KERATINSKI TONOFILAMENTI) - jedra samo u bulbusnom delu korpusa dok se celije iznad keratinizuju 3. SP. SLOJ KUTIKULA 1 RED CELIJA KAO CREP NA KROVU(bogate sumporom)
  • 4. __________________________________________ □GRADJA BULBUSA □EPITELNI I VEZIVNI DEO EP DEO 1. UN OMOTAC KORENA DLAKE PRVA STRUKTURA KOJA OROZAVA- KALUP ZA FORMIRANJE DLAKE(koncentricno rasporedjene celije iz kojih ce nastati medula, korteks, kutikula) 2. SP. OMOTAC KORENA DLAKE Na dnu se nalazi udibljenje za KAPILARE(ishrana dlake) NERVNA VL M. ARECTOR PILI PRAZNJENJE SEBACEALNE ZLEZDE
  • 5. __________________________________________ □CIKLUS RASTA TERMINALNIH DLAKA - mitotskim deobama iz MATRIX PILI (spoj folikula i korena dlake) 1. ANAGENA FAZA (AKTIVNI RAST) Traje 3-6 godina 2. KATAGENA FAZA (INVOLUCIJA FOLIKULA) do 30 DANA 3. TELOGENA FAZA (FAZA ISPADANJA DLAKE) 3-6 MESECI 85% DLAKA se nalazi u ANAGENU 1% KATAGEN 15% TELOGEN
  • 6. SVAKI FOLIKUL IMA NEZAVISTAN CIKLUS DUZINA ZIVOTA DLAKA NA RAZL DELOVIMA TELA NIJE ISTA RUKA, NOGA - 1M TREPAVICE, OBRVE 3M KAPILICIJUM 3-6G __________________________________________ Posle isteka zivota dlake tj. Kada bulbus u potpunosti oroza -- --> DLAKA SE ODVAJA OD PALILE a epitel folikula mitotskim deobama stvara EPITELNI TRACAK BUDUCE DLAKE MITOTSKA AKTIVNOST STIMULISANA POLNIM HORMONIMA. __________________________________________