Tubule Collection

Kidney tubules in section
Kidney tubules. Fluorescent light micrograph of a section through kidney tissue showing numerous tubules (black/green). The tubules are seen in cross-section

Nephron detail, the functional unit of excretion in the human kidney

Renal glomerulus
The renal glomerulus is a network (tuft) of capillaries that performs the first step of filtering blood

Anatomy of bowmans glomerular capsule

Diagram of a nephron, the functional unit of excretion in the kidney
Diagram of a nephron, the functional unit of excretion in the human kidney

Cardiac muscle, TEM
Cardiac muscle. Coloured transmission electron micrograph (TEM) of cardiac muscle fibrils (orange)from a healthy heart. Mitochondria (pink) supply the muscle cells with energy

Cardiac muscle and capillary, TEM
Cardiac muscle. Coloured transmission electron micrograph (TEM) of cardiac muscle fibrils (purple)from a healthy heart. Mitochondria (green) supply the muscle cells with energy

Nephron structure, artwork
Nephron structure. Artwork showing the structure of a nephron, the functional filtering unit of a kidney. The function of the kidney is to filter waste products such as urea from the blood

Anatomy of human kidney function

Microscopic view of Dentine. Dentine is the main supporting structure of the tooth and is the second hardest tissue in the body after enamel. It is 70% mineral and acellular

Conceptual image of cytoskeleton. The cytoskeleton is a cellular scaffolding or skeleton contained within a cells cytoplasm, and is present in all cells

Microscopic cross section view of the small intestine. TheAsmall intestineAis a long, highly convoluted tube in the digestive system that absorbs about 90% of the nutrients from the food we eat

Light-sensitive Sea Cucumber (Holothuria impatiens) adult, extruding sticky defensive cuivierian respiratory tubules at night, Manado, Sulawesi, Greater Sunda Islands, Indonesia, March

Brown Sandfish Sea Cucumber (Bohadschia vitiensis) adult, extruding white sticky cuivierian tubules in defensive behaviour, Lembeh Straits, Sulawesi, Sunda Islands, Indonesia, January

Kidney disease, light micrograph
Kidney disease. Light micrograph of a section through an inflamed kidney showing a glomerulus (coiled capillaries, purple). It is surrounded by vascular exudate and necrotic tubules

Kidney mitochondria, TEM
Kidney mitochondria. Transmission electron micrograph (TEM) of a section through a kidney tubule, showing numerous mitochondria (blue)

Nephron structure, artwork C016 / 9867
Nephron structure. Artwork showing the structure of a nephron, the functional filtering unit of a kidney. The function of the kidney is to filter waste products such as urea from the blood

Nephron structure, artwork C016 / 9868
Nephron structure. Artwork showing the structure of a nephron, the functional filtering unit of a kidney. The function of the kidney is to filter waste products such as urea from the blood

Intracellular transport, artwork C013 / 5001
Intracellular transport. Computer artwork of a vesicle (sphere) being transported along a microtubule (blue and green) by a kinesin motor protein (orange)

Sea Cucumber (Holothuroidea sp. ) adult, extruding white sticky respiratory tubules in defensive action at night
Sea Cucumber (Holothuroidea sp.) adult, extruding white sticky respiratory tubules in defensive action at night, Gam Island, Raja Ampat, West Papua, New Guinea, Indonesia

Leopard Sea Cucumber (Bohadschia argus) adult, extruding white sticky respiratory tubules in defensive action, Pulau Nailaka, Banda, near Ambon Island, Maluku Islands, Banda Sea, Indonesia

Tooth dentine, SEM
Tooth dentine. Coloured scanning electron micrograph (SEM) of dentine from a milk tooth. The bulk of a tooth is formed of dentine, a mineralised connective tissue with a similar composition to bone

Kidney tubules in section
Kidney tubules. Fluorescent light micrograph of a section through kidney tissue showing numerous tubules (red/green). The tubules are seen in cross-section

Dentin tooth tissue, SEM
Dentin tooth tissue. Coloured scanning electron micrograph (SEM) of dentin tooth tissue. Dentin is mineralised connective tissue that makes up the majority of a tooth

Cardiac muscle. Coloured scanning electron micrograph (SEM) of heart (cardiac) muscle fibrils (yellow). The membrane around the muscle has been torn (yellow)

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 tubule cell, coloured SEM
Kidney tubule cell, coloured scanning electron micrograph (SEM). This cell (brown) is covered in thin projections (microvilli) that serve to increase its surface area

Collecting duct from a kidney, SEM
Collecting duct from a kidney. Coloured scanning electron micrograph (SEM) of a section through a collecting duct from a kidney

Cardiac muscle, SEM
Cardiac muscle. Coloured scanning electron micrograph (SEM) of a bundle of cardiac muscle fibrils (green) from a healthy heart. Mitochondria (round, orange) supply the muscle cells with energy

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

Kidney tubule, SEM
Kidney tubule. Coloured scanning electron micrograph (SEM) of a section through a kidney tubule. The tubules function to reabsorb water, glucose and other small molecules from the filtrate

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"Tubule: The Intricate Network of Excretion and Function in Our Body" The kidney tubules, when observed in section, reveal the remarkable complexity of the nephron - the functional unit responsible for excretion within our human kidneys. These tiny structures play a crucial role in maintaining our body's equilibrium. Intriguingly, a TEM image showcases the intricate arrangement of cardiac muscle cells, highlighting their interconnections. Another TEM image captures the close proximity between cardiac muscle and capillaries, emphasizing their vital relationship for efficient oxygen supply. Artwork depicting the nephron structure provides an insightful glimpse into its anatomy. This complex system consists of various components working harmoniously to filter waste products from our blood while retaining essential substances like water and electrolytes. A microscopic view reveals dentine with its unique composition and structure. This dental tissue forms an integral part of our teeth, providing strength and protection against external forces. A conceptual image showcasing the cytoskeleton offers a visual representation of this dynamic network within cells. It plays a pivotal role in maintaining cell shape, facilitating movement, and supporting cellular functions. The renal glomerulus is another critical component involved in filtration processes within the kidney. Its intricate architecture ensures effective removal of waste materials while preserving valuable molecules required by our body. Anatomy exploration further unravels Bowman's glomerular capsule - an essential part that encapsulates the glomerulus. Understanding its structure aids comprehension of how filtration occurs efficiently within this specialized region. Once again, we encounter a conceptual image illustrating the significance of cytoskeletons – these internal scaffolds provide structural support to maintain cell integrity across diverse tissues throughout our bodies. Lastly, examining a microscopic cross-section view unveils fascinating details about small intestine physiology. This highly specialized organ absorbs nutrients from digested food through its extensive network of tubules called villi – ensuring optimal nutrient uptake for sustaining bodily functions.