★ The Blood Quiz
Which blood vessel has valves to prevent the back-flow of blood?
A. Veins
B. Arteries
C. Capillaries
Select your answer:
Topics:
Excretion in Humans Pathophysiology - Adaptive Immunity Brain/Neuron Anatomy Disease, Illness and Sickness Cell Reproduction Respiration Body Fluids Anatomy and Histology of Stomach Dermatology Genes, Chromosomes and Genome Circulatory System and Nutrition Biological Molecules Soldiers of Defense Medical Careers Multicellular Organisms: OrganisationOther quiz:
Human Eye and Colorful World › ViewWhich eye disease has blurred images and clouding of the lens?
A. Myopia
B. Pink Eye
C. Cataracts
D. Hypermyopia
Nutrition › View
True or False. All cholesterol is bad for you.
A. TRUE
B. FALSE