Biology · Human Physiology
What is the primary reason why blood does not clot inside intact human blood vessels?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Presence of Heparin✓
- 2Presence of Fibrinogen
- 3Absence of Calcium ions
- 4Presence of Hemoglobin
Correct answer
Presence of Heparin
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