Question

Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and/ or functions

• A. A-Adrenal gland-located at the anterior part of kidney. Secrete Catecholamines which stimulate glycogen breakdown
• B. B-Pelvis-broad funnel shaped space inner to hilum, directly connected to loops of Henle
• C. C-Medulla - inner zone of kidney and contains complete nephrons
• D. D-Cortex- outer part of kidney and do not contain any part of nephrons

Answer 1

The Correct Option is A

The question involves identifying and characterizing the structures labeled A to D in the human urinary system. Let's analyze each option:

1. Structure A: Adrenal gland
   • Adrenal glands are located on the anterior part of the kidneys.
   • They secrete catecholamines, such as adrenaline and noradrenaline, which stimulate glycogen breakdown.
   • This description matches the option and is correct.
2. Structure B: Pelvis
   • The pelvis is the broad, funnel-shaped structure inside the kidney but is not directly connected to the loops of Henle.
   • It collects urine from the kidney and funnels it to the ureter.
   • This description in the option is incorrect.
3. Structure C: Medulla
   • The medulla is the inner region of the kidney, which contains parts of the nephron, such as the loops of Henle and collecting ducts, but not the complete nephrons.
   • This description in the option is incorrect.
4. Structure D: Cortex
   • The cortex is the outer part of the kidney and contains parts of the nephron, such as the glomeruli and proximal/distal convoluted tubules.
   • The option stating it does not contain any part of the nephron is incorrect.

Therefore, the correct option is A: Adrenal gland located at the anterior part of the kidney, secreting catecholamines which stimulate glycogen breakdown.