skin histological examination

8/10/2019 Skin histological examination

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ays

SKIN 2

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Fig. 2.1. Histological structure of skin.

Stain: hematoxylin and eosin.

I. Epidermis

II. Dermis

III. Hypodermis

1. stratum basale

2. other stratum of epidermis

3. sweat glands

4. ducts of sweat glands

. adipose tissue

!. blood "essels

#. s$in%fi&ed ligaments

'. (acinian corpuscle.

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Fig. 2.2. Schematic representation of epidermal strata and their cellular composition.

1. superficial part of dermis

2. stratum basale

3. stratum spinosum

4. stratum granulosum

. stratum corneum

!. melanocyte

#. basal cells )epithelial cells*

'. structural elements of s$in differon )histogenetic lineage*

+. epidermal stem cell

10. dendritic ),angerhans* cell

11. -er$el cell12. ner"e ending including to tactile epidermal comple&

13. reticular fiber.

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Fig. 2.. !icroscopic structure of skin of head.


1. epidermis2. dermis

3. sebaceous gland

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4. hair root

. subcutaneous adipose tissue

!. aponeurosis of s$ull.

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Fig. 2.". #pper fragment of fig. 2..

1. epidermis

2. dermis

3. collagen fibers bundle

4. parts of arrector pili muscle

. hair sebaceous gland comple&

!. e&ternal root sheath

#. part of stratum corneum surrounded of hair shaft'. hair root.

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Fig. 2.$. !icroscopic structure of finger %hairless& skin.


I. Epidermis

II. Dermis

III. Hypodermis.1. stratum corneum

2. stratum lucidum

3. stratum spinosum

4. stratum basale

. ducts of sweat glands

!. papillary layer of dermis

#. papillary crysta

'. reticular layer of dermis

+. subcutaneous adipose tissue

10. retinaculum cutis.

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4. mitochondrion

. rough endoplasmic reticulum

!. lamellar granules in $eratinocytes of stratum spinosum

#. /olgi comple&

'. tonofilaments of granular $eratinocytes

+. $eratohyalin granules

10. lamellar granules )dland granules* in granular $eratinocytes11. releasing of contents of lamellar granule

12. coat of corneal $eratinocytes

13. horn )$eratinied* cells.

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Fig. 2.(. !icroscopic structure of )hite thin skin.


1. stratum corneum

2. stratum lucidum


4. stratum spinosum

5. stratum basale

6. dermis.

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Fig. 2.*. !icroscopic structure of +lack %dark& thin skin.


1. stratum corneum


3. stratum spinosum

4. stratum basale

. melanocytes

!. nuclei of $eratinocytes

#. dermis

'. melanosome

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Fig. 2.,. -lectron micrograph of melanocyte.

1. body of melanocyte

2. process of melanocyte

3. $eratinocytes.

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Fig. 2.1. Schematic diagram of synthesis of melanin and entering it into keratinocytes.

1. formation of premelanosomes

2. synthesis of melanin in primary melanosomes

3. melanosome secretion

4. destruction of melanosomes.

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Fig. 2.11. !icroscopical structure of keratinocytes of stratum spinosum.


1. intercellular spaces contained spine%li$e process

2. cytoplasm of $eratinocyte

3. nucleus of $eratinocyte

4. nucleoli of $eratinocyte.

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Fig. 2.12. #ltrastructure of desmosomes located +et)een process of keratinocytes.

1. desmosomes

2. tonofibrils

3. cytoplasm of $eratinocytes.

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Fig. 2.1. !icroscopical structure of dendritic %/angerhans& cell of epidermis.

Stain: hematoxylin0eosin.

1. stratum corneum


3. stratum spinosum

4. nuclei of $eratinocytes of stratum spinosum

. dendritic cells that posses melanosome%li$e structures obtained due hemato&ylin%eosin

staining.

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Fig. 2.1". ransitional section of upper part of hair root from hair +ul+.


1. connecti"e tissue sheath

2. glassy membrane

3. cuticle

4. e&ternal root sheath

. internal root sheath

!. hair corte&.

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Fig. 2.1$. /ongitudinal section of hair root and hair +ul+.



2. internal root sheath

3. hair medulla

4. hair matri&

. dermal papilla

!. connecti"e tissue sheath.

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Fig. 2.1'. /ongitudinal section of hair +ul+.


1. connecti"e tissue sheath


3. Henleys layer of internal root sheath

4. Ha&leys layer of internal root sheath

. dermal papilla

!. proliferated cells of hair root.

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Fig. 2.1(. Histological structure of

se+aceous gland of hair.


1. duct

2. sebum

3. peripheral basal sebocytes

4. ordinary sebocytes

. "acuolated degenerati"e

sebocytes

!. hair follicle.

Fig. 2.1*. Initiation part of eccrine s)eat gland.

an03ison stain.

1. coiled secretory tubules of sweat gland

2. lumen of secretory tubules of sweat gland

3. ducts of sweat gland.

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Fig. 2.1,. Histological structure of mammary gland.


1. lumen of mammary gland acinus

2. e&ocrine lactocyte

3. intalobular duct

4. interlobular septum

. connecti"e tissue elements.

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Fig. 2.2. !icroscopical structure of 4acinian corpuscle.


1. fibrous capsule

2. perineural capsule

3. transitional section of fusiform dendrite.

skin histological examination

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