Structure Of Skin Germinative Layer

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Figure 1-26

Skin Thick, keratinized, multilayered stratum corneum rests atop grainy stratum granulosum (stratum lucidum not clearly evident). Stratum spinosum, composed of irregularly shaped cells with indistinct nuclei, lies atop single, clearly nucleated stratum basale. Human palm. (X100)

Stratum corneum Stratum granulosum Stratum spinosum Stratum basale Dermis

Figure 1-26

Skin Thick, keratinized, multilayered stratum corneum rests atop grainy stratum granulosum (stratum lucidum not clearly evident). Stratum spinosum, composed of irregularly shaped cells with indistinct nuclei, lies atop single, clearly nucleated stratum basale. Human palm. (X100)

Stratum corneum Stratum granulosum Stratum spinosum Stratum basale Dermis

Skin Human Palm

Figure 1-27

Skin Squamous epidermis with cornified layers overlying darkly stained stratum basale and connective tissue of underlying dermis. Single papilla visible. Human scalp. (X100)

Papilla Cornified layer

Epidermis Dermis

Figure 1-27

Skin Squamous epidermis with cornified layers overlying darkly stained stratum basale and connective tissue of underlying dermis. Single papilla visible. Human scalp. (X100)

Papilla Cornified layer

Epidermis Dermis

Germinative Layer Epidermis

Figure 1-28

Meissner's Corpuscle in Dermis Elongated oval body located in dermis just below stratum basale is thought to be responsible for part of fine touch reception. (X100)

Stratum basale (epidermis) Meissner's corpuscle Dermis

Figure 1-28

Meissner's Corpuscle in Dermis Elongated oval body located in dermis just below stratum basale is thought to be responsible for part of fine touch reception. (X100)

Stratum basale (epidermis) Meissner's corpuscle Dermis

Meissner Corpuscles Histology

Histology

Finger Touch Receptor Pacinian

Figure 1-29

Pacinian Corpuscle Encapsulated nerve ending found deep in dermis and throughout interior of body detects pressure. (X25)

Capsule

Free nerve ending

Figure 1-29

Pacinian Corpuscle Encapsulated nerve ending found deep in dermis and throughout interior of body detects pressure. (X25)

Capsule

Free nerve ending

Free Nerve Ending Skin

Figure 1-30

Human Scalp with Hair Follicle Follicle root, with sheath embedded in pale adipose tissue, has sebaceous glands surrounding it near surface. (X10)

Hair papilla

Hair follicle

Root sheath Hair root

Sebaceous gland

Figure 1-30

Human Scalp with Hair Follicle Follicle root, with sheath embedded in pale adipose tissue, has sebaceous glands surrounding it near surface. (X10)

Hair papilla

Hair follicle

Root sheath Hair root

Sebaceous gland

Germinative Cells

Figure 1-31

Detail of Sebaceous Gland Nucleated germinative cells at base of gland mature and accumulate lipid. At duct, they degenerate and lyse to release their oily product, sebum. (X 100)

Sebaceous gland Hair root Hair follicle

Figure 1-31

Detail of Sebaceous Gland Nucleated germinative cells at base of gland mature and accumulate lipid. At duct, they degenerate and lyse to release their oily product, sebum. (X 100)

Sebaceous gland Hair root Hair follicle

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Responses

  • john
    Is living cells found in the germinative layer of the skin?
    2 years ago

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