Question

Internal valves are present in the _________

• A. arterioles
• B. lymphatic vessels
• C. vascular capillaries
• D. lymph capillaries

Hint:

{Valves prevent backflow in lymphatic vessels}.

Answer 1

The Correct Option is B

Step 1: Understanding lymphatic system.
The lymphatic system transports lymph from tissues back to the bloodstream.

Step 2: Role of valves.
Lymphatic vessels contain internal valves to prevent backflow of lymph due to low pressure.

Step 3: Conclusion.
Hence, internal valves are present in lymphatic vessels.