accumulate K+. The Na+ and K+ carrier protein (Sodium/potassium cotransporter) is present on the luminal membrane of the ascending part of loop of Henley. This carrier protein will transport 1 Na+‚ 1 K+ and 2 Cl- into cells. This part of the nephron is water impermeable. Tubular fluid with therefore become diluted as the solutes are being removed The medullary interstitial fluid is now more concentrated. The thick ascending part of the loop of Henley is making the interstitial fluid progressively
Free Kidney Nephron Signal transduction
The Excretory System The importance of the excretory system The excretory system involves a process which removes unwanted products from the body’s chemistry. In general‚ excretion is the process of separating wastes from the body fluids and eliminating them. Examples include the removal of carbon dioxide in the air we exhale‚ and unwanted nitrogen in sweat‚ nails and hair. Explain the various methods of excretion in the human body There are four (4) organ systems which are responsible
Premium Kidney Glomerulus Nephron
and blood pressure Regulating plasma concentrations of sodium‚ potassium‚ chloride‚ and other ions Stabilizing blood pH Conserving valuable nutrients Removing drugs and toxins from the bloodstream Explain the functions of the components of a nephron‚ and relate those functions to cellular and histological specializations. Segment General Functions Specific Functions Renal Corpuscle Filtration of plasma; generates approximately 180 L/day of filtrate similar in composition to blood plasma but
Premium Nephron Kidney
Excretion • Removal of nitrogenous wastes from the body Nitrogenous wastes • Ammonia o Most toxic o Needs more water for getting excreted o Diffuses across general body surfaces o Examples of organisms excreting ammonia: fishes‚ aquatic amphibians and aquatic insects o Such organisms are called ammonotelic. • Urea o Less toxic o Requires less water for excretion o Terrestrial adaptation for conservation of water o Ammonia Urea o Examples of organisms excreting urea: terrestrial amphibians
Free Kidney Nephron
main function of the kidneys is to remove urea (nitrogenous waste) and excessive water from the blood. The basic unit of the kidney is called the nephrons. How the kidneys function The kidneys have three basic mechanisms for separating the various components of the blood: filtration‚ reabsorption‚ and secretion. These three processes occur in the nephron (Figure 2)‚ which is the most basic functional unit of the kidney. Each kidney contains approximately one million of these
Free Kidney Nephron
V. Anatomy and Physiology The Urinary Tract The Urinary System rids the body of nitrogenous wastes while regulating water‚ electrolyte‚ and acid-base balance of the blood. Kidneys Kidneys are small‚ dark red organs with a kidney-bean shape lie against the dorsal body wall in a retroperineal position (beneath the parietal peritoneum) in the superior lumbar region. The kidneys extend from T12 to the L3 vertebra; thus they receive some protection from the lower part of the rib cage. Because
Free Kidney Nephron Glomerulus
The kidney is made up of nephrons‚ which are a kidney’s functional units. These nephrons collect fluid filtered from the blood. The kidney connects to the renal artery‚ renal‚ vein‚ and ureter. Purified blood leaves the kidney using the renal vein‚ urine leaves using a ureter and the renal artery carries blood from the aorta to the kidney. The nephron has a cup-shaped nephric capsule that surrounds a cluster of capillaries called the glomerulus. A good deal of fluid from the blood filters into the
Free Kidney Nephron
body and symmetrically beside the spine and below the rib cage. A kidney approximately 0.5% of the organism body weight. Every kidney will receive huge amount of blood to enable them to perform important task. The base unit of kidney is called a nephron that contains all the basic filtering cells of kidney. ( How your kidney works) Kidney is very important to a mammal’s body. Without a normal functioning kidney‚ the organism’s blood vessels will be full of waste product as kidney’s function is to
Free Kidney Nephron
STRUCTURE OF NEPHRON: Nephrons (Greek nephros=kidney) are renal or kidney tubules. Each kidney has over one million nephrons that are responsible for removing waste products from blood and maintaining water‚ salt and pH balance in the body. This vital job results in the formation of urine. 1.Afferent Arteriole * receives blood rich in oxygen from the renal artery. * blood is transported to the glomerulus of the nephron where it is pressure filtered. 2.Glomerulus * The glomerulus
Premium Nephron Kidney Glomerulus
Title: Homeostasis Date: 19th January 2010 Aim: To observe‚ draw and label the parts of a nephron. Apparatus: Slide of the transverse section of a kidney Pencil Paper Microscope Method: The slide of the transverse section of a kidney was mounted on the microscope and observed under high power. Drawings of the parts of the nephron were made. Calculations of Magnification: Loop of Henle One Ocular Division = 0.22 µm Size of Specimen = 2 ocular divisions Conversion of Ocular
Premium Nephron Kidney Blood