Excretion Collection (page 3)

Moths interior, SEM
Moths interior. Coloured scanning electron micrograph (SEM) of the trachea and Malpighi tubules of a moth (order Lepidoptera)

Moths interior. Scanning electron micrograph (SEM) of the trachea and Malpighi tubules of a moth (order Lepidoptera). Oxygen enters the tracheal tubes (green) from the spiracles (breathing pores)

Sweat gland in skin. Light micrograph of a section through the dermis of the skin showing a sweat gland. The gland is composed of a secretory portion (upper left)

Kidneys and adrenal glands
Kidneys. Computer artwork of the human renal system. The kidneys (brown/red, left and right) filter waste products and water from blood that passes through the organs in the renal arteries (red)

Renal blood vessels, X-ray
Renal blood vessels. Angiogram (X-ray) of blood vessels in a healthy kidney. The large artery entering the kidney is the renal artery, which branches into many smaller capillaries inside the kidney

Kideny and adrenal gland
Kidney and adrenal gland, artwork. The kidney is one of a pair of organs that form urine by filtering out waste products from the blood

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)

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)

Healthy kidney measured, ultrasound scan
Healthy kidney measured. Coloured ultrasound scan showing the measurement of a normal adult kidney. This kidney (dark blue)

Human kidneys. Computer artwork of two sectioned human kidneys. Humans possess two kidneys, located at the back of the abdomen, responsible for excreting nitrogenous waste from the blood

Kidneys, abdominal CT scan
Normal kidneys. Coloured axial (horizontal) CT (computed tomography) scan through a human abdomen at the level of the kidneys. The front of the body is at top

Kidney

Abdominal bones, 3-D CT scan
Abdominal bones, coloured 3-D computer tomography (CT) scan. The lower part of the ribcage is in upper frame, with the pelvis in lower frame. They are connected by the spine, which runs down centre

Diuresis. Conceptual image of the effect of diuretics on the kidney. A diuretic is any drug that encourages the excretion of urine. Common diuretics include caffeine and alcohol

Diuretic effect, computer artwork
Diuretic effect. Computer artwork of the effect of diuretics (grey barriers) on a renal tubule (red) inside the kidney. These tubules regulate the levels of chemicals such as sodium (orange)

Kidney glomeruli, light micrograph
Kidney glomeruli. Light microscope of a section through the cortex of a healthy kidney showing glomeruli. The core of a glomerulus is formed of a tightly coiled capillary (purple)

Human urinary system, artwork
Urinary system. Computer artwork of a male torso and the urinary system, showing kidney, urethra, bladder and suprarenal gland

Healthy urinary system, artwork

Glomerular capillary, TEM
Glomerular capillary. Coloured transmission electron micrograph (TEM) of a section through kidney tissue, showing a capillary from a glomerulus. Glomeruli filter waste products from the blood

Diuresis, conceptual image. Computer artwork representing the effect of diuretics on the kidney. A diuretic is any drug that encourages the excretion of urine

Kidney, light micrograph
Kidney. Light micrograph of a vertical section through a whole kidney. The kidney is surrounded by a capsule (dark purple) under which is the cortex (deep red)

Diuretic effect, artwork
Diuretic effect. Computer artwork showing the effect of diuretics (grey barriers) on a renal tubule (red) inside the kidney

Medical purging, satirical artwork
Medical purging. Satirical artwork showing a physician (in robes) and his assistant purging patients. Follies and fantasies are purged in a cloud (upper right) using an oven to bake the head

Urinary system, artwork
Urinary system. Artwork showing the human urinary system on an outline of the human body, showing the location of the kidneys (upper left and upper right) and bladder (lower centre)

Kidney glomerulus surface, SEM
Kidney glomerulus surface. Coloured scanning electron micrograph (SEM) of podocyte cells (orange) on the surface of a kidney glomerulus. These have branching processes (pedicles) that interlock

Kidney glomerulus, light micrograph
Kidney glomerulus. Coloured light micrograph of a section through the cortex of a healthy kidney, showing a glomerulus. The core of a glomerulus is formed of a tightly coiled capillary (purple)

Female urinary system, artwork
Female urinary system. Computer artwork of a naked woman with a healthy urinary system. The kidneys can be seen (upper left and right), as well as the ureters

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Excretion is a vital process in the human body, responsible for eliminating waste and maintaining homeostasis. The intricate system involves various organs and structures working together seamlessly. One such structure is the kidney glomerulus, which plays a crucial role in filtration. When observed under a scanning electron microscope (SEM), the kidney glomerulus reveals its intricate network of blood vessels that aid in filtering waste products from the blood. The SEM also provides us with detailed images of multiple kidney glomeruli, showcasing their unique architecture and functionality. These microscopic marvels are essential components of our excretory system, ensuring efficient waste removal. In addition to the fascinating SEM images, an artwork depicting fibroblast cells reminds us that excretion is not limited to kidneys alone. Various cells throughout our bodies contribute to this process by eliminating metabolic byproducts and toxins. Moving away from scientific depictions, we encounter everyday scenarios related to excretion. A photograph titled "Apres Moi, Le Deluge" captures a girl inside a lavatory – symbolizing how one's bodily functions can lead to relief after discomfort. Similarly, another black-and-white photo portrays two girls in a nursery setting; one sitting on a potty chair emphasizes early stages of learning control over excretory functions – an important milestone for every child's development. On another note, "Seance à la Chambre, " depicted as a colorful lithograph artwork showcases individuals gathered around during what appears to be an intense discussion about matters concerning balance – perhaps alluding metaphorically to maintaining equilibrium within our own bodies through proper excretion processes. Lastly, we come across an intriguing image labeled "SANTORIOS BALANCE. " Although it may seem unrelated at first glance, it serves as a reminder that achieving balance between intake and output is crucial for overall health – including proper elimination of waste materials through urine or feces.