Bowman's capsule

Examples of Bowman's capsule in the following topics:

• Regulation of Glomerular Filtration Rate

  • GFR=Filtration Constant X (Hydrostatic Glomerulus Pressure–Hydrostatic Bowman's Capsule Pressure)–(Osmotic Glomerulus Pressure+Osmotic Bowman's Capsule Pressure)
  • Changes in either the hydrostatic or osmotic pressure in the glomerulus or Bowman's capsule will change GFR.
  • The Bowman's capsule space exerts hydrostatic pressure of its own that pushes against the glomerulus.
  • Increased Bowman's capsule hydrostatic pressure will decrease GFR, while decreased Bowman's capsule hydrostatic pressure will increase GFR.
  • An obstruction will increase the Bowman's capsule hydrostatic pressure and will consequently decrease GFR.

• Glomerular Diseases

  • Bowman's capsule surround the glomerulus.
  • The blood is filtered through the capillaries of the glomerulus into the Bowman's capsule.
  • The Bowman's capsule empties the filtrate into a tubule that is also part of the nephron.
  • This, in turn, aids the process of ultrafiltration, where fluids and soluble materials in the blood are forced out of the capillaries and into Bowman's capsule.
  • A glomerulus and its surrounding Bowman's capsule constitute a renal corpuscle, the basic filtration unit of the kidney.

• Glomerular Filtration

  • The Bowman's capsule (also called the glomerular capsule) surrounds the glomerulus and is composed of visceral (simple squamous epithelial cells—inner) and parietal (simple squamous epithelial cells—outer) layers.
  • A diagram showing the afferent and efferent arterioles bringing blood in and out of the Bowman's capsule, a cup-like sac at the beginning of the tubular component of a nephron.

• Bulk Flow: Filtration and Reabsorption

  • Each nephron begins in a renal corpuscle composed of a glomerulus containing numerous capillaries enclosed in a Bowman's capsule.
  • Proteins and other large molecules are filtered out of the oxygenated blood in the glomerulus and pass into Bowman's capsule and the tubular fluid contained within.

• Nephron, Parts, and Histology

  • Here, fluid and solutes are filtered out of the blood and into the space made by Bowman's capsule.
  • The Bowman's capsule (also called the glomerular capsule) surrounds the glomerulus.
  • Bowman's capsule, 4.

• Internal Anatomy of the Kidneys

  • The renal cortex is a space between the medulla and the outer capsule.
  • The kidneys are surrounded by a renal cortex, a layer of tissue that is also covered by renal fascia (connective tissue) and the renal capsule.
  • At one end of each nephron, in the cortex of the kidney, is a cup-shaped structure called the Bowman's capsule.
  • It surrounds a tuft of capillaries called the glomerulus that carries blood from the renal arteries into the nephron, where plasma is filtered through the capsule.
  • After entering the capsule, the filtered fluid flows along the proximal convoluted tubule to the loop of Henle and then to the distal convoluted tubule and the collecting ducts, which flow into the ureter.

• Basement Membranes and Diseases

  • The most notable examples of basement membranes are in the glomerular filtration of the kidney, by the fusion of the basal lamina from the endothelium of glomerular capillaries and the basal lamina of the epithelium of the Bowman's capsule; and between lung alveoli and pulmonary capillaries, by the fusion of the basal lamina of the lung alveoli and of the basal lamina of the lung capillaries, which is where oxygen and CO2 diffusion happens.

• Supply of Blood and Nerves to the Kidneys

  • These afferent arterioles branch into the glomerular capillaries, which facilitate fluid transfer to the nephrons inside the Bowman's capsule, while efferent arterioles take blood away from the glomerulus, and into the interlobular capillaries, which provide tissue oxygenation to the parenchyma of the kidney.

• Nerve and Blood Supply

  • The articular capsule is highly innervated but avascular (lacking blood and lymph vessels), and receives nutrition from the surrounding blood supply via either the slow process of diffusion or convection, a far more efficient process.
  • Numerous vessels from this plexus pierce the fibrous capsule and form a rich vascular plexus in the deeper part of the synovial membrane.
  • It supplies the capsule, synovial membrane, and the epiphyses.
  • The synovial cartilage in the capsule acts somewhat like a sponge.

• Structure of Synovial Joints

  • It is distinguished by a surrounding synovial capsule.
  • The joint may be divided, completely or incompletely, by an articular disk or meniscus, the periphery of which is continuous with the fibrous capsule while its free surfaces are covered by synovial membrane.
  • The articular capsule is fibrous and continuous with the periosteum of articulating bones, surrounding the diarthrosis and uniting the articulating bones.
  • A synovial membrane (or synovium) is the soft tissue found between the articular capsule (joint capsule) and the joint cavity of synovial joints.
  • The main structural differences between synovial and fibrous joints are the existence of capsules surrounding the articulating surfaces of a synovial joint and the presence of lubricating synovial fluid within those capsules (synovial cavities).