★ 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:
Dermatology Population Ecology Renal & Neural Sense of Sight Heart and Circulatory System Lungs Respiration Genetics and Probability Inflammation and Tissue Repair Entomology Medical Terminology Gastroinestinal Gastroenterology Organ Senses and Locomotor System Confusion, Dementia, & Alzheimers Disease Human Eye and Colorful World Contemporary Nutrition IssuesOther quiz:
Eye in Color Vision › ViewWhat is the blind spot in the human eye?
A. The point where the optic nerve leaves the eye, containing no photoreceptors
B. A region in the cornea with no vision
C. The central area of the retina that provides the clearest vision
D. The peripheral part of the eye that detects motion
Healthcare Delivery Systems and Insurance › View
One of the largest and fastest growing industries in the United States is…….
A. real estate
B. healthcare
C. technology
D. home health