Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Vertebrate Kidney
Typically, all vertebrates have a pair of kidneys, which function on the filtration - reabsorption - secretion principle. Only in a few teleost fishes, the kidney is aglomerular (without a glomerulus) and functions on the absorption - reabsorption - secretion principle as in the malpighian tubules of insects. The functional unit of the vertebrate kidney is the nephron or the uriniferous tubule. A small fish may have only a few dozen nephrons in its kidneys; a large mammal may have several million. A mammalis nephron begins with the renal corpuscle or the Malpighian body which consists of a double-walled cup, the Bowman's capsule, enclosing a knot of blood capillaries called glomeplus.
Figure: Schematic diagram of mammalian kidney and nephoron
Blood is brought to the kidney by the renal artery which branches and sub-branches into interloper arteries and finally into the afferent arteriole which gives rise to the capillary network of the glomerulus. An efferent arteriole formed by the confluence of the capillaries takes blood away from the Bowman's capsule. The Bowman's capsule latter continues into a long convoluted tubule which is distinguished into the proximal and distal convoluted tubules respectively. The distal convoluted tubules from different nephorons join to form the collecting tubule which carry the urine into the renal pelvis from where the ureter starts. The proximal and distal tubules are present in all vertebrates, but in birds and mammals a new U-shaped hair-pin-like segment called Henle's loop is present between proximal and the distal tubules. In the following section we shall study structural variations in the vertebrate kidney.
Explain Oedema - Clinical Signs of Kwashiorkor? Oedema: Oedema refers to accumulation of fluid in the tissues and usually begins with a slight swelling in feet gradually spread
Isomer : Existence of different compounds having same molecular form but different structural forms.
What would happen to a cell and its offspring if the cells did not go by a G1 phase during their cell cycle? Describe Without a G1 growth phase, the cells would not grow to th
Explain prevention of endocarditis Many physicians believe that antimicrobial prophylaxis before process that may cause transient bacteremia can stop endocarditis and prostheti
How do mineral salts participate in osmotic regulation? Osmotic pressure depends on the number of particles dissolved in a solution and not on the nature of such particles. Min
Q. Use of echocardiography in pericardial diseases? One of the earliest clinical applications of echocardiography was in the detection of pericardial effusion and it remains th
what is the mode of nutrition in tape worm
explain excretory system of prawn?
Define Precautions for estimation of vitamin c in a solution? 1. Rinse all glassware with 3% metaphosphoric acid before you begin your practical and subsequently each time you
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd