Epithelial Collection

Intestinal lining

Trachea lining, SEM
Trachea lining, coloured scanning electron micrograph (SEM). The tracheal lining contains mucus-secreting goblet cells and epithelial cells bearing hair-like cilia (blue)

Intestinal microvilli, TEM
Intestinal microvilli, coloured transmission electron micrograph (TEM). The microvilli are finger-like projections (seen here in circular cross-section)

Destruction complete d une moitie du visage par un cancer epithelial (colour litho)
5210424 Destruction complete d une moitie du visage par un cancer epithelial (colour litho) by French School, (19th century); Private Collection; (add.info)

Cross-section diagram of a cancerous tumour including calcium deposits, blood vessels, tumour outgrowth, epithelial layer, ulcerated area, bleeding, nerve fibres, dead tissue and a lymph vessel

Nasal lining, SEM
Nasal lining. Coloured scanning electron micrograph (SEM) of the olfactory epithelium that lines the nasal cavity, showing olfactory cells (red) surrounded by numerous cilia (hair-like projections)

Intestinal villi, SEM
Intestinal villi. Coloured scanning electron micrograph (SEM) of a section through a part of the small intestine, showing the villi that cover its inner surface

Throat cancer, X-rays
Throat cancer. Coloured X-rays showing the transit of a contrast medium (dense white) through the throat of a 54-year-old patient with an adenocarcinoma (cancer) of the lower oesophagus (gullet)

Trachea lining, SEM C015 / 9936
Trachea lining. Coloured scanning electron micrograph (SEM) of a section through the lining of the trachea (wind pipe). The trachea links the larynx (voice box) to the lungs

Colon cancer, endoscopic view C016 / 8308
Colon cancer. Endoscopic view of a malignant (cancerous) adenocarcinoma (upper right) in a patients ascending colon (large intestine)

Trachea lining, SEM C013 / 7126
Trachea lining. Coloured scanning electron micrograph (SEM) of the lining of a trachea (wind pipe), showing the cilia (hair-like) and goblet cells (orange). The trachea links the larynx to the lungs

Trachea lining, SEM C013 / 7122
Trachea lining. Coloured scanning electron micrograph (SEM) of a section through the wall of a trachea (wind pipe). The trachea links the larynx to the lungs

Bladder epithelium, light micrograph
Bladder epithelium. Light micrograph of a vertical section through the wall of the urinary bladder. The inner surface is at top

Trachea, SEM
Trachea. Coloured scanning electron micrograph (SEM) of the lining of the trachea (windpipe). The trachea links the larynx (voice box) to the lungs

Conceptual image of the Human Papilloma Virus (HPV). HPV is a virus from the papillomavirus family that affects human skin and the moist membranes that line the body

Trachea lining, SEM C016 / 9756
Trachea lining. Coloured scanning electron micrograph (SEM) of the lining of the trachea (wind pipe). The trachea links the larynx to the lungs

Sunburnt skin. Coloured electron micrograph (SEM) of epidermal skin cells after sunburn. These stratified epithelial cells have been destroyed by ultraviolet (UV)

Human skin, SEM
Human skin. Coloured scanning electron micrograph (SEM) of the surface layer of the human skin, the epidermis. The outer layer of the epidermis (the stratum corneum)

Bladder lining, TEM C014 / 1473
Bladder lining. Transmission electron micrograph (TEM) of a section through the epithelial cells that line of a human bladder, showing large flat vesicles (large, blue)

Stem cell-derived retinal cells. Fluorescence light micrograph of retinal pigment epithelium (RPE) cells that have been derived from human embryonic stem cells (HESC)

Breast cancer, TEM F006 / 8633
Breast cancer. Coloured transmission electron micrograph (TEM) of a section through a ductal carcinoma (cancer) of the breast showing malignant epithelial cells

Breast cancer, TEM F006 / 8632
Breast cancer. Coloured transmission electron micrograph (TEM) of a section through a ductal carcinoma (cancer) of the breast showing malignant epithelial cells

Colitis, light micrograph
Colitis. Light micrograph of a section through colon (large intestine) tissue affected by bacterial infection, causing injury to the mucosal lining, which has resulted in inflammation (colitis)

Hairy scalp skin, light micrograph
Hairy scalp skin. Light micrograph of a section through healthy skin from a human scalp, showing the numerous hair follicles. The scalp is an example of hairy skin

Ischaemic bowel, light micrograph
Ischaemic bowel. Light micrograph of a section through a portion of intestine that has been damaged by an interruption of the blood supply, or ischaemia

Staphylococcus aureus bacteria, TEM C016 / 9458
Staphylococcus aureus bacteria. Coloured transmission electron micrograph (TEM) of a Staphylococcus aureus bacterium (round) in skin tissue. S

Helicobacter pylori bacteria, SEM C016 / 9135
Helicobacter pylori bacteria. Coloured scanning electron micrograph (SEM) of Helicobacter pylori bacteria (yellow) in the stomach. H

Helicobacter pylori bacteria, SEM C016 / 9134
Helicobacter pylori bacteria. Coloured scanning electron micrograph (SEM) of Helicobacter pylori bacteria (orange) in the stomach. H

Helicobacter pylori bacteria, SEM C016 / 9136
Helicobacter pylori bacteria. Coloured scanning electron micrograph (SEM) of Helicobacter pylori bacteria (green) in the stomach. H

Staphylococcus aureus bacteria, TEM C016 / 9457
Staphylococcus aureus bacteria. Coloured transmission electron micrograph (TEM) of a Staphylococcus aureus bacterium (blue) in skin tissue. S

Staphylococcus aureus bacteria, TEM C016 / 9455
Staphylococcus aureus bacteria. Coloured transmission electron micrograph (TEM) of Staphylococcus aureus bacteria four hours after infection of pulmonary epithelial cells. S

Helicobacter pylori bacteria, SEM C016 / 9053
Helicobacter pylori bacteria. Coloured scanning electron micrograph (SEM) of a Helicobacter pylori bacterium (blue) in the stomach. H

Staphylococcus aureus bacteria, TEM C016 / 9456
Staphylococcus aureus bacteria. Coloured transmission electron micrograph (TEM) of Staphylococcus aureus bacteria four hours after infection of pulmonary epithelial cells. S

Finger skin, SEM
Finger skin. Coloured scanning electron micrograph (SEM) of a section through skin from a human finger, showing the characteristic dermal ridges (lower left, and right) that make up the fingerprint

Ductal breast cancer, TEM
Ductal breast cancer. Transmission electron micrograph (TEM) of a section through breast tissue, showing malignant (cancerous) epithelial cells arising from the milk ducts of the breast

Human Skin Cells (SEM)
Human Skin Cells. Scanning electron micrograph (SEM) of the surface layer of the human skin, the epidermis. The outer layer of the epidermis (stratum corneum)

Smell receptor, TEM
Smell receptor. Transmission electron micrograph (TEM) of a section through the olfactory epithelium that lines the nasal cavity, showing an olfactory cell (smell receptor)

Goblet cell, TEM
Goblet cell. Transmission electron micrograph (TEM) of a section through a goblet cell in the lining (epithelium, top) of the small intestine

Zebra fish skin, SEM
Zebra fish skin. Coloured scanning electron micrograph (SEM) of the folded surface of skin cells from a zebrafish (Danio rerio). The microscopic folds are called microplicae

Intestinal brush border, TEM
Intestinal brush border. Transmission electron micrograph (TEM) of intestinal absorptive cells sectioned horizontally at their apex to show the surface microvilli (round)

Trachea lining, SEM C015 / 9939
Trachea lining. Coloured scanning electron micrograph (SEM) of a section through the lining of the trachea (wind pipe). The trachea links the larynx (voice box) to the lungs

Gastritis, light micrograph C016 / 0508
Gastritis. Light micrograph of a section through an inflamed human stomach (gastritis), showing an abnormal accumulation of white blood cells (leucocytes)

Trachea lining, SEM C015 / 9610
Trachea lining. Coloured scanning electron micrograph (SEM) of the lining of the trachea (wind pipe). The trachea links the larynx to the lungs

Retina of the eye, light micrograph C016 / 0528
Retina of the eye. Light micrograph of a section through the retina from a human eye. From top down: nerve fibres of the optic nerve and a blood vessel; several layers of neurons (nerve cells)

Gastritis, light micrograph C016 / 0507
Gastritis. Light micrograph of a section through an inflamed human stomach (gastritis), showing an abnormal accumulation of white blood cells (leucocytes)

Lens of the eye, light micrograph C016 / 0526
Lens of the eye. Light micrograph of a section through the lens from a human eye. The lens consists of thousands of precisely aligned stacks of fibres seen here end-on

Stratified squamous epithelium C016 / 0534
Stratified squamous epithelium. Light micrograph of a section through stratified squamous epithelium, showing the multiple layers, or strata, that function to resist abrasion of the surface

Gallbladder surface, SEM C015 / 9613
Gallbladder surface, coloured scanning electron micrograph (SEM). The columnar epithelium of the surface is covered in microvilli (tiny hair-like projections)

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Epithelial cells, the unsung heroes of our body's lining. From the intestinal tract to the trachea, these microscopic warriors protect and support us in ways we often overlook. Take a closer look at the intestinal lining under a scanning electron microscope (SEM). The intricate network of microvilli reveals itself, enhancing nutrient absorption and ensuring our digestive system functions seamlessly. Moving on to the trachea lining, SEM unveils its unique structure. These epithelial cells form a protective barrier against harmful particles while allowing for efficient gas exchange within our respiratory system. Zooming into zebra fish skin through SEM, we discover another fascinating aspect cells. Their arrangement provides defense against external threats while maintaining essential functions like osmoregulation. Intriguingly captured by SEM are bacteria residing in our nasal passages. Though seemingly insignificant, these tiny organisms play crucial roles in maintaining healthy immune responses and preventing infections. However, not all stories about epithelial cells are positive. A colour lithograph depicts the devastating impact of cancerous growth on half of someone's face. This serves as a reminder that even resilient epithelial layers can succumb to destructive forces if left unchecked. A cross-section diagram further illustrates how cancer affects various components such as calcium deposits, blood vessels, ulcerated areas, nerve fibers - all intertwined with an afflicted epithelial layer. It emphasizes the importance of early detection and treatment options available for those battling this formidable disease. Returning to less dire scenarios captured by SEM is the nasal lining – yet another example showcasing how delicate but vital these cellular linings truly are. The intestinal villi also make their appearance under SEM – finger-like projections that increase surface area for optimal nutrient absorption within our gut ecosystem. Shifting gears towards throat cancer diagnosis using X-rays highlights how medical imaging techniques aid in identifying abnormalities affecting this critical part of our anatomy. Early detection can significantly improve prognosis and treatment outcomes for patients facing such challenges.