Human excretory system does not involve
1. Urethra
2. Vestibule
3. Bladder
4. Kidneys
Which of the following has no role in the elimination of excretory wastes?
(1) Kidneys
(2) Lungs
(3) Skin
(4) Oesophagus
The measurements of human kidneys are not
1. 10-12 cm in length
2. Kidneys weigh 240- 340 g
3. Thickness of kidney is 2-3 cm
4. 5-7cm in width
Kidneys are situated in
1. Between the last thoracic and 5th lumbar vertebra
2. Between the last thoracic and 3rd lumbar vertebra
3. Between the last thoracic and 2nd lumbar vertebra
4. Between the last thoracic and first lumbar vertebra
Figure shows a human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and/or functions.
1. | B-pelvis - broad funnel-shaped space inner to the hilum, directly connected to loops of Henle. |
2. | C- Medulla- inner zone of kidney and contains complex nephrons. |
3. | D- Cortex- outer part of the kidney and does not contain any part of nephrons. |
4. | A- Adrenal gland- located at the anterior part of the kidney; secretes catecholamines which stimulate glycogen breakdown. |