Download - SISTEM INTEGUMEN
ULFAH DIAN INDRAYANILaboratorium Histologi FK UNISSULA
April 2011
SISTEM INTEGUMEN
FUNGSI KULIT
1. Proteksi2. Water barrier mencegah penguapan
berlebihan3. Mengatur suhu badan4. Pertahanan non spesific5. Ekskresi garam6. Sintesis vitamin D7. Organ sensoris
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STRUKTUR UMUM KULIT
Kulit tebal vs kulit tipis
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Lapisan epidermis
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Dermis
Figure 11-13 Sensory receptors of the skin
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RambutStruktur berkeratin yang sangat dimodifikasiDihasilkan oleh folikel rambut
pertumbuhan ke bawah epitel permukaanPertumbuhan rambut terjadi di bagian akhir
folikel yang melebar bulbus rambut epitel yang aktif membelah mengelilingi papil jaringan vaskuler (papil dermis)
Muskulus arektor pili melekat pada selubung folikel dan tertanam di papil dermis
Muskulus arektor pili disarafi oleh saraf simpatis dingin, takut berdiri
Folikel rambutStruktur tubular yang terdiri atas lima lapis
konsentris sel epitel:pele
Kelenjar Sebacea
Setiap folikel rambut memiliki satu atau lebih kelenjar sebasea mensekresi sebum bahan tahan air dan pelembab rambut & kulit kepala
Pada daerah peralihan kulit-saluran tubuh (bibir, palpebra) kelenjar sebasea terdapat bebas dari folikel rambut dan bersekresi langsung pada permukaan kulit
Kelenjar keringatMensekresi cairan encer pada permukaan
kulit melalui proses merokrinKelenjar di ketiak dan genital apokrin,
sekret kental dicurahkan ke dalam folikel rambut
Figure 11-14 Migratory pathways of stem cell keratinocytes
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Folikel rambut
Kelenjar kulit
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Figure 14-15 Structure of the thumbnail.
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Figure 11-15 Structure of the hair
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Figure 11-16 Sebaceous gland: Holocrine secretion
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Figure 11-17 Eccrine sweat glands: Merocrine secretion
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Figure 11-18 Apocrine sweat glands: Merocrine secretion
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Figure 11-19 Cystic fibrosis and sweat glands
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Figure 11-20 Structure and formation of the fingernail
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