Capillary Collection (#3)

Red blood cells, artwork C016 / 8546
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 8544
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Kidney blood vessels, confocal micrograph C014 / 4610
Kidney blood vessels. Laser scanning confocal micrograph (LSCM) of a section through a human kidney, showing a blood vessel (vertical, centre)

Lungs anatomy, artwork
Lungs anatomy, computer artwork. At top left is the trachea (windpipe, white), which splits into two bronchi, one for each lung (blue)

Mosquito feeding, artwork
Mosquito feeding. Computer artwork of a mosquito with its proboscis inserted into a persons skin (lower left) to feed on blood in a blood vessel (red)

Healthy artery, artwork C015 / 6444
Healthy artery. Computer artwork of the inside of an healthy artery, showing red blood cells (circular) and the epithelial cells (square) lining the vessels wall

Kidney glomerulus, TEM C016 / 5831
Kidney glomerulus. Transmission electron micrograph (TEM) of a section through a renal glomerulus. At centre left is a capillary with a red blood cell (black) in its lumen

Resin cast of blood supply to kidneys C016 / 4601
Resin cast of the blood supply to a human kidney, showing the dense network of capillaries arising from divisions of a renal artery

Resin cast of blood supply to kidneys C016 / 4609
Detail of a resin cast of the blood supply to a human kidney, showing the dense network of capillaries arising from divisions of a renal artery

Resin cast of blood supply to kidneys C016 / 4603
Resin cast of the blood supply to human kidneys, showing the dense network of capillaries arising from divisions of a renal artery

Resin cast of blood supply to kidneys C016 / 4605
Detail of a resin cast of the blood supply to a human kidney, showing the dense network of capillaries arising from divisions of a renal artery

Resin cast of blood supply to kidneys C016 / 4602
Resin cast of the blood supply to a human kidney, showing the dense network of capillaries arising from divisions of a renal artery

Resin cast of blood supply to kidneys C016 / 4599
Detail of a resin cast of the blood supply to a human kidney, showing the dense network of capillaries arising from divisions of a renal artery

Illustration of blood supply in the thyroid gland
Illustration of the capillary blood supply of a follicle in the human thyroid gland. The thyroid endocrine gland consists of many closed spheroidal follicles

Adipose tissue, SEM
Adipose tissue. Coloured scanning electron micrograph (SEM) of adipose tissue. The tissue consists of adipocyte cells, whose lipid (fat) contents has been largely removed

Illustration of follicles in the thyroid gland
Thyroid gland. Illustration of the microscopic cell structure of the human thyroid gland, with an outline of the whole gland superimposed

Liver capillary, SEM
Liver capillary. Coloured scanning electron micro- graph (SEM) of a freeze-fractured section through liver tissue showing a hepatic capillary, or sinusoid

Kidney glomerulus
Glomerulus. Coloured scanning electron micrograph (SEM) of a healthy kidney glomerulus. The glomerulus is a tight ball of capillaries where blood passing through the kidneys is filtered

Kidney podocyte cells, SEM
Kidney podocyte cells. Coloured scanning electron micrograph (SEM) of podocyte cells on the surface of a kidney glomerulus. Podocytes possess branching, foot-like processes (red/brown)

False-colour SEM of a section of lung tissue
Lung tissue. False-colour scanning electron micrograph (SEM) of a section of lung tissue. The image shows several alveolar ducts and alveolar sacs (large)

Kidney filtration, SEM
Kidney filtration. Coloured scanning electron micrograph (SEM) of tissue from a healthy kidney, showing the glomerular structure. The surface of a glomerulus is encased in podocyte cells (purple)

Lung alveoli, SEM
Lung alveoli. Coloured scanning electron micrograph (SEM) of alveoli (air spaces) in the lungs. Blood vessels containing erythrocytes (red blood cells) are also seen

Fallopian tube blood vessels, SEM
Fallopian tube blood vessels. Coloured scanning electron micrograph (SEM) of a cast of blood vessels from a fallopian tube

Insulin-secreting pancreatic cells
Insulin production. Artwork of a section through beta cells secreting insulin (blue spheres) into a capillary (small blood vessel, grey tube). Beta cells are found in the pancreas

F / col TEM of capillary in alveolar septum of lung
False-colour transmission electron micrograph (TEM) of human lung tissue, showing an alveolar septum, the partition between the alveoli (air sacs) where gas exchange takes place

Retina blood vessel and nerve cells
Retina cells. Fluorescent light micrograph of cells in the retina, the light-sensitive membrane that lines the back of the eyeball

White blood cell response
White blood cell movement. Computer-enhanced confocal light micrograph of white blood cells (red) moving through the intact walls of a blood vessel, a process known as diapedesis

Blood vessel types, artwork
Blood vessel types. Artworks of the three types of blood vessels, from left: arteries, veins, and capillaries. Arteries are thick blood vessels carrying oxygenated blood around the body away from

Artwork of a section through healthy skin
Healthy skin. Illustration of a section through skin. At top is the cornified layer (white), a protective layer of dead skin. Beneath it is the epidermal layer (brown) and the dermis (pink)

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"Exploring the Intricate Network of Capillaries: A Journey through the Human Digestive System and Artistic Renderings" Step into the mesmerizing world of capillaries, where intricate pathways weave their way through our bodies. In this captivating journey, we delve into various organs and tissues to uncover the beauty and functionality of these tiny blood vessels. Starting with a closer look at the kidney glomerulus under a scanning electron microscope (SEM), we witness its complex structure that filters waste products from our blood. The delicate web-like arrangement of capillaries ensures efficient filtration, enabling our kidneys to maintain proper balance in our body. Moving on to another SEM image, we discover thyroid gland capillaries intricately intertwined within this vital endocrine organ. These microscopic vessels play a crucial role in delivering hormones throughout our body, ensuring proper metabolism and growth. As we continue exploring kidney glomeruli under SEM once again, their unique architecture comes into focus. These clusters of capillaries enable selective reabsorption and excretion processes necessary for maintaining fluid balance in our bodies. Shifting gears slightly, we turn towards retina blood vessels captured by SEM. Here, these tiny capillaries supply oxygen-rich blood to nourish the light-sensitive cells responsible for vision – an exquisite example of nature's design meeting function. Intriguingly, computer artwork showcases red blood cells flowing gracefully through capillary networks. This imaginative representation reminds us how essential these vessels are in transporting oxygen and nutrients while removing waste products throughout every corner of our bodies. Diving deeper into muscle tissue with false-color SEM imagery reveals pericyte-covered capillaries. Pericytes act as guardians protecting these fragile vessels while also playing a role in regulating blood flow – an elegant symbiotic relationship between cells within us. Concluding this captivating journey is yet another glimpse at kidney glomeruli but now observed through light microscopy. This traditional technique highlights their distinct appearance and allows us to appreciate the intricate details of these vital structures.