
The tiny blood vessels that allow substances to move in and out of the blood stream, like oxygen and carbon dioxide, are called:
A. aortas
B. bronchioles
C. veins
D. capillaries
Select your answer:

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Patho_Genetics Anatomy & Physiology: Respiratory Health issue related to immune system Embryology Microorganism - Diseases Human Eye and Colorful World Heart Vocab and Blood Flow Pathway Blood Formation and Clotting Fats And Oil Human Eye Mechanical Digestion Deficiency Diseases History of Medicine Child Development Male Reproductive SystemOther quiz:
Tissues › Viewmuscles whose contraction is under our control are
A. skeletal muscle
B. nerve muscle
C. epidermal muscle
D. xylem muscle
Anatomy › View
what is the is first
A. actin and myosin form links
B. acetylcholine crosses the gap at the neuromuscular junction
C. calcium is releasted into the sarcolpasm
D. myosin cross-briges pull actin filaments inward