Biology · Human Circulatory System
शिराओं (veins) में रक्त को केवल एक ही दिशा में प्रवाहित रखने का कार्य कौन करता है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1केशिकाएं (Capillaries)
- 2मोटी दीवारें (Thick walls)
- 3कपाट (Valves)✓
- 4लचीली दीवारें (Elastic walls)
सही उत्तर देखें
कपाट (Valves)
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