Dermis Collection (page 4)

Hair follicles, SEM
Hair follicles. Coloured scanning electron micrograph (SEM) of a section through freeze- fractured hair follicles in the skin

Skin layers, light micrograph
Skin layers. Coloured light micrograph of a section through human skin layers. The top layer is the stratum corneum (flaky, orange), a cornified layer of the epidermis that is composed of flattened

Coloured SEM of a section through skin layers
Skin. Coloured scanning electron micrograph (SEM) of a section through human skin. At top is the stratum corneum (green) of the epidermis, a cornified layer composed of flattened

Skin and hair follicles. Artwork taken from Govard Bidloos Anatomia Humani Corporis (Anatomy of the Human Body), published 1685

Coloured SEM of blood vessels in the skin
Skin blood vessels. Coloured scanning electron micrograph (SEM) of two small blood vessels (far left and upper right) in the dermis of the skin

Second-degree burn, artwork
Second-degree burn, cut-away artwork. A second-degree burn damages the top layer of skin (epidermis, dark pink) and the underlying tissue (dermis, pink)

Third-degree burn, artwork
Third-degree burn, cut-away artwork. A third-degree burn is a severe burn that damages the top layer of skin (epidermis, dark pink), the underlying tissue (dermis)

Elastic cartilage, SEM
Elastic cartilage. Coloured scanning electron micrograph (SEM) of a section through elastic cartilage (central horizontal strip) from a pinna (external ear)

Psoriasis, light micrograph
Psoriasis. Light micrograph of a section through a psoriasis pustule. Psoriasis is a chronic skin disease causing inflammation and scaly lesions

Scaly skin
Psoriasis. Artwork comparing two sections through human skin: healthy skin (left) and skin affected by psoriasis (right). Psoriasis is the presence of scaly lesions on the skin

Skin mole, light micrograph

Human skin, light micrograph
Human skin. Light micrograph of a cross-section through a sample of skin from a human finger. Across top are layers of stratified squamous epithelium forming the outer skin layers

Ageing skin, artwork
Ageing skin. Computer artwork of sections through human skin, showing its appearance as it ages (from left to right). Elastin (red) and collagen (blue) in the skins dermis (pink) break down

Snake dermis fibres, SEM
Snake dermis fibres, coloured scanning electron micrograph (SEM). The dermis is the layer of living skin below the outer epidermis and the scales of a snake

Skin tissue, SEM
Skin tissue. Coloured scanning electron micrograph (SEM) of a freeze-fracture through human skin tissue. The fracture plane (lower frame) has revealed the pseudo-stratified epithelium (below surface)

Scalp tissue, light micrograph
Scalp tissue. Polarised light micrograph of a section through the human scalp. This section shows oblique and transverse sections through hair shafts (yellow-orange)

Skin tissue, light micrograph
Skin tissue. Light micrograph of a transverse section through human skin. The skin is made up of an outer epidermis (pale purple, across top) with hair follicles (deep purple)

Human finger, longitudinal section
Human finger. Light micrograph of a longitudinal section through a finger of a human infant. This shows the bones inside the finger (here, the 1st and 2nd phalanges)

Heel skin tissue, light micrograph
Heel skin tissue. Polarised light micrograph of a transverse section through skin from the heel of a human foot. The sole of the foot has to withstand the weight of the body

Shark skin, light micrograph
Shark skin. Light micrograph of a section through the skin of a shark, showing two dermal denticles. These bony structures cover the whole skin of the shark

Foot skin tissue, light micrograph
Foot skin tissue. Light micrograph of a transverse section through skin from a human foot. The skin is made up of an outer epidermis (across top)

Skin sweat glands, light micrograph
Skin sweat glands. Light micrograph of a transverse section through skin from a human foot. The skin is made up of an outer epidermis (across top) and a lower epidermis (deep purple)

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The dermis, a fascinating layer of our skin, plays a crucial role in protecting and maintaining our body. From skin disorders to intricate artwork, the dermis offers us an array of wonders to explore. In a SEM image of a section through human skin, we witness the complexity and beauty that lies beneath the surface. The layers of They can revealed, showcasing their unique functions and structures. Another illustration captures heat trapped by erect hairs in a cross-section of human skin. This phenomenon highlights how our body adapts to environmental changes and regulates temperature effectively. A colored SEM showcases blood vessels within the dermis, emphasizing its vital role in nourishing our skin cells. These intricate networks ensure proper circulation and contribute to overall health. Moving deeper into this microscopic world, we encounter various skin conditions depicted in cross-sections. A blackhead reveals clogged pores while papules showcase inflamed spots on the surface. Pustules demonstrate infected areas with pus accumulation, while whiteheads depict blocked follicles under the skin's surface. Delving further into anatomy, we explore how different layers interact harmoniously within the dermis. Each layer serves distinct purposes – from epidermis protection to collagen production – creating a resilient shield against external factors. Histopathology and pathophysiology come into play when examining diabetic foot ulcers' impact on the dermal layer. Understanding these processes helps medical professionals provide effective treatments for patients suffering from such conditions. Whether it is appreciating its artistic qualities or unraveling its complexities during medical research, exploring the wonders of the dermis unveils both aesthetic marvels and critical insights into human health.