At which point, the pulmonary artery is different from the pulmonary vein:
1. Its lumen is broad
2. Its wall is thick
3. It has valves
4. It does not possess endothelium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySystemic heart refers to:
1. | The heart that contracts under stimulation from the nervous system |
2. | Left auricle and left ventricle in higher vertebrates |
3. | Entire heart in lower vertebrates |
4. | The two ventricles together in humans |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology