EXCRETORY SYSTEM
Q1. What are the organs involved in the excretory system?
The Rectum/ Anus and the kidneys.
Q2. Where is the Rectum and Anus and what are their functions?
The Rectum is the final part of the larger intestine where the solid undigested waste food gets accumulated (coming from larger intestine) and the Anus is the exit point or opening for the excretion.
Q3. What are kidneys and where are they located?
They are two bean like spongy hollow tissue bags located on each side of the vertebral column, where the urine gets stored. They are approximately 10 cm long, 5 cm wide and 2.5 cm thick. From each of them emerges a long channel called the "Ureter" by which the urine passes into the urinary bladder. Each of them has thousands of minute glands in the form of canals known as Uriniferous Tubules.
Q4. What is the function of the kidneys?
They filter nitrogenous waste of the body from the blood and throw them out in the form of urine. They are responsible for the removal of excess water, salts and waste products from the blood and maintaining it's pH level. (a number used to express degrees of acidity and alkalinity in a solution).
Q5. Which pigment is responsible for the pale yellow colour of the urine?
Urochrome.
Q6. What is the functional and structural unit of kidney?
Nephron.
Q7. How many nephrons are there in each kidney?
About 10 lakh in each.
Q8. What is the stone commonly seen in kidney?
Calcium Oxalate.
Q9. Kidney dual functions. What are they?
(1) Osmoregulatory; (2) Excretory.
Q10. What is the acute & Chronic disease of kidneys?
Nephritis.
Q11. Who made the first artificial kidney?
John Jacob Abel.
Q12. What is uraemia and what technique is used to control the disease?
It is a kidney related disease where the urea count becomes larger. It is controlled by regular 'dialysis' (a blood transfusion).
Q13. What is responsible for kidney stones?
Uric acid.
Q14. What are the organs involved in the excretory system?
The Rectum/ Anus and the kidneys.
Q15. Where is the Rectum and Anus and what are their functions?
The Rectum is the final part of the larger intestine where the solid undigested waste food gets accumulated (coming from larger intestine) and the Anus is the exit point or opening for the excretion.
Q16. What are kidneys and where are they located?
They are two bean like spongy hollow tissue bags located on each side of the vertebral column, where the urine gets stored. They are approximately 10 cm long, 5 cm wide and 2.5 cm thick. From each of them emerges a long channel called the "Ureter" by which the urine passes into the urinary bladder. Each of them has thousands of minute glands in the form of canals known as Uriniferous Tubules.
Q17. What is the function of the kidneys?
They filter nitrogenous waste of the body from the blood and throw them out in the form of urine. They are responsible for the removal of excess water, salts and waste products from the blood and maintaining it's pH level. (a number used to express degrees of acidity and alkalinity in a solution).
Q18. Which pigment is responsible for the pale yellow colour of the urine?
Urochrome.
Q19. What is the functional and structural unit of kidney?
Nephron.
Q20. How many nephrons are there in each kidney?
About 10 lakh in each.
Q21. What is the stone commonly seen in kidney?
Calcium Oxalate.
Q22. Kidney dual functions. What are they?
(1) Osmoregulatory; (2) Excretory.
Q23. What is the acute & Chronic disease of kidneys?
Nephritis.
Q24. Who made the first artificial kidney?
John Jacob Abel.
Q25. What is uraemia and what technique is used to control the disease?
It is a kidney related disease where the urea count becomes larger. It is controlled by regular 'dialysis' (a blood transfusion).
Q26. What is responsible for kidney stones?
Uric acid.
