★ Circulatory / Respiratory Quiz
Which structure prevents the backflow of blood from the ventricles to the atria?
A. AV valves
B. septum
C. sinoatrial node
D. atrioventricular node
E. superior vena cava
Select your answer:
Topics:
Absorption, Lymphatic System, and Blood Vessels Osteoporosis Infectious Diseases Axial & Appendicular Skeleton Bone Cell Theory and Cell Organelles Healthy Foundations The Ankle and Lower Leg Vocabulary - Health Eye Autoimmune Disease Foot Orthosis Vocab Bone Physiology Vision & Hearing Medicinal use of MicroorganisimsOther quiz:
Genetics: Viruses and Bacteria › ViewUnlike the cells of eukaryotes, the cells of bacteria do not have
A. a nucleus
B. cell walls
C. flagellum
D. cells
Vital Signs › View
What is the blood pressure in the picture?
A. 118
B. 118/78
C. 78
D. 78/70
E. 70