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Layers of Scalp 3D

  • Skin

    • * The outermost layer, comprising the epidermis (stratified squamous epithelium) and dermis (fibrovascular tissue).
    • * Contains hair follicles, sebaceous glands, sweat glands, and sensory receptors (including Pacinian corpuscles for fine touch).
    • * Epidermis provides a waterproof barrier and houses melanin for pigmentation.
    • * Dermis harbors the hair follicles, glands, nerves, and blood vessels.

 

  • Connective Tissue Layer

    • * A loose fibrofatty layer connecting the skin to the Galea aponeurotica.
    • * Richly vascularized with branches of the external carotid artery supplying the scalp.
    • * Provides cushioning and facilitates movement between the skin and deeper layers.

 

  • Galea Aponeurotica

    • * A thin, tendinous sheet formed from the aponeuroses of several facial muscles.
    • * Provides anchorage for the hair follicles and facial muscles.
    • * Allows for scalp movement and expression.

 

  • Loose Areolar Tissue

    • * A loose connective tissue layer connecting the Galea aponeurotica to the Periosteum.
    • * Allows for independent movement of the scalp over the cranium.
    • * Contains emissary veins draining blood from the scalp into the intracranial venous system.

 

  • Periosteum

    • * The fibrous membrane tightly adherent to the outer surface of the cranial bones.
    • * Provides vascular supply and nutrition to the skull bones.
    • * Plays a role in bone repair and regeneration.

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  • Skin

    • * The outermost layer, comprising the epidermis (stratified squamous epithelium) and dermis (fibrovascular tissue).
    • * Contains hair follicles, sebaceous glands, sweat glands, and sensory receptors (including Pacinian corpuscles for fine touch).
    • * Epidermis provides a waterproof barrier and houses melanin for pigmentation.
    • * Dermis harbors the hair follicles, glands, nerves, and blood vessels.

 

  • Connective Tissue Layer

    • * A loose fibrofatty layer connecting the skin to the Galea aponeurotica.
    • * Richly vascularized with branches of the external carotid artery supplying the scalp.
    • * Provides cushioning and facilitates movement between the skin and deeper layers.

 

  • Galea Aponeurotica

    • * A thin, tendinous sheet formed from the aponeuroses of several facial muscles.
    • * Provides anchorage for the hair follicles and facial muscles.
    • * Allows for scalp movement and expression.

 

  • Loose Areolar Tissue

    • * A loose connective tissue layer connecting the Galea aponeurotica to the Periosteum.
    • * Allows for independent movement of the scalp over the cranium.
    • * Contains emissary veins draining blood from the scalp into the intracranial venous system.

 

  • Periosteum

    • * The fibrous membrane tightly adherent to the outer surface of the cranial bones.
    • * Provides vascular supply and nutrition to the skull bones.
    • * Plays a role in bone repair and regeneration.

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