★ Circulatory & Respiratory Quiz
Blood vessels with a thick lumen and valves to prevent back flow
A. arteries
B. veins
C. capillaries
Select your answer:
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Bone Marrow Histology Brain, Neurons and The Nervous System Basic Structure of the Human Body Plasmid Healthcare Systems and Settings Teeths Trichology Biochemistry: Carbohydrates and Lipids Med Term Musculoskeletal Branches of Microbiology Pathology Molecular Genetics Integrated Science Perioperative Nursing Care Nervous and Endocrine System Pharmacology CalculationsOther quiz:
Food and Nutrition › ViewThe percentage of water in the human body is
A. 65
B. 70
C. 40
D. 80
Circulatory & Respiratory › View
Thin-walled vessels that allow for the exchange of O2 , CO2, nutrients and wastes between blood cells or air sacs in the lungs
A. Arteries
B. Veins
C. Capillaries