Part not belonging to uriniferous tubule is -

[AIPMT 94]

a)
Glomerulus

b)
Henle's loop

c)
Distal convoluted tuble

d)
Collecting duct

Correct answer is option 'A'. Can you explain this answer?

Question

Part not belonging to uriniferous tubule is -[AIPMT 94]a)Glomerulusb)Henles loopc)Distal convoluted tubled)Collecting ductCorrect answer is option 'A'. Can you explain this answer?

Answer

The uriniferous tubule or the kidney tubule is a fine, long, convoluted tubule that is involved in excretory functions. This tubule basically conveys urine from the glomerulus to the renal pelvis. A large amount of water and salts are reabsorbed during the passage of urine through it At certain locations in the kidney tubule, some ions are also secreted into the urine. It includes the Henle's loop, the DCT and PCT, and the collecting tubule.

So, the correct answer is 'Glomerulus'.

Answer

Answer

Collecting duct is not a part of nephron. Many nephrons pass on their filtrate to a single collecting duct which further help it out of the kidney

Answer

Collecting duct is not a part of uriniferous tubule or nephron

Answer

Answer should be A and D both
in Aipmt 1994 they don't added in option glomerulus
they added Bowman's capsule which is a part of uriniferous tubule

Answer

Glomerulus – A component of the uriniferous tubule
The uriniferous tubule is a structure in the kidney responsible for the formation of urine. It consists of several segments, each with its own specific functions. The glomerulus is one of these segments, and it plays a crucial role in the filtration of blood to form urine.

The glomerulus is a network of tiny blood vessels called capillaries that are surrounded by specialized cells called podocytes. These podocytes have unique foot-like extensions called pedicels that wrap around the capillaries, forming filtration slits. The glomerulus acts as a sieve, allowing small molecules such as water, ions, and waste products to pass through while preventing larger molecules like proteins and blood cells from entering the urinary space.

Henle's loop – A component of the uriniferous tubule
Henle's loop, also known as the Loop of Henle, is another important component of the uriniferous tubule. It is a U-shaped structure that extends from the proximal convoluted tubule to the distal convoluted tubule. Henle's loop consists of a descending limb and an ascending limb.

The descending limb is permeable to water but not to ions, allowing water to passively diffuse out of the tubule and into the surrounding interstitium. The ascending limb, on the other hand, actively transports ions such as sodium and chloride out of the tubule, leading to the formation of a concentrated urine.

Distal convoluted tubule – A component of the uriniferous tubule
The distal convoluted tubule is located after Henle's loop and plays a role in the reabsorption and secretion of ions. It is responsible for fine-tuning the composition of urine by selectively reabsorbing certain ions and actively secreting others.

Collecting duct – A component of the uriniferous tubule
The collecting duct is the final segment of the uriniferous tubule. It is responsible for the final concentration of urine and plays a crucial role in maintaining water and electrolyte balance in the body. The collecting duct reabsorbs water and concentrates the urine by osmosis, under the influence of the hormone vasopressin (also known as antidiuretic hormone).

Conclusion
In the given options, the glomerulus is the only component that does not belong to the uriniferous tubule. It is a structure within the tubule that acts as a filtration site, allowing the passage of small molecules while preventing larger ones from entering the urinary space.

Answer

Collecting duct.....

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