Human Excretory System - Life Process | Class 10 Biology

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Class: 10th
Subject: Biology
Chapter: Life Process
Topic Name: Human Excretory System (1.34)

Points covered in this video:-


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Human Excretory System:
The main part of excretory system are -
Kidney -
- These are two bean-shaped purplish-brown coloured structures located in the back of the abdominal cavity.
- It is about 12 cm long, about 6 cm thick and weighs about 150 gm.
- Kidneys contain millions of nephron which filter 170 to 200 litres blood to produce 1-1.8 litres of urine daily.

Renal Arteries -
Two renal arteries constantly transport blood to each of the kidneys.

The main part of excretory system are -
Renal vein -
Two renal veins return useful nutrients back into the bloodstream after filtering the unwanted materials in kidneys.

Ureters -
Two tubes which arise from each kidney and carry urine to the bladder.

Urinary bladder -
This is a muscular sac-like structure where urine is stored until it is thrown out.

Urethra -
This is a short muscular tube that carries urine from the urinary bladder to the outside of the body.

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