Which of the following diagrams depicts the positions of the ureters (shown as blue lines) and the urinary bladder in the human excretory system?

Correct option is B

The correct answer is (B) Diagram 1.

• In the human excretory system, the ureters are the tubes that transport urine from the kidneys to the urinary bladder. The urinary bladder is where urine is stored before being excreted from the body.
• Diagram 1 correctly shows the position of the ureters (depicted as blue lines) from the kidneys leading to the urinary bladder.

Information Booster:

• The ureters are muscular tubes that help propel urine from the kidneys to the urinary bladder through peristaltic movements.
• The urinary bladder is a hollow, muscular organ that temporarily stores urine until it is excreted.

Human Excretory System - Key Points:

Main Function: The human excretory system is responsible for eliminating waste products and maintaining homeostasis by regulating the balance of water, salts, and other substances in the body.

Key Organs:

• Kidneys: Filter blood to remove waste products like urea, excess salts, and water. They regulate blood pressure and maintain electrolyte balance.
• Ureters: Tubes that transport urine from the kidneys to the urinary bladder.
• Urinary Bladder: Stores urine until it is ready to be expelled from the body.
• Urethra: A tube through which urine is excreted from the body.

Waste Products: The primary waste product excreted is urine, which contains urea, creatinine, excess salts, and water.

Filtration Process:

• Blood enters the kidneys through the renal arteries.
• In the nephrons (functional units of kidneys), blood is filtered, and waste is removed.
• The filtered blood returns to circulation through the renal veins.