★ Circulatory / Respiratory Quiz
What causes the semilunar valves to open?
A. contraction of the ventricles
B. contraction of the atria
C. stimulation of the SA node
D. backflow of blood in the aorta and pulmonary artery during diastole
E. contraction of the cardiac muscle that makes up the valves
Select your answer:
Topics:
Transport system in Living Things (Human) BIOMEDICAL MCQ Human Health Muscular System NCHSE RDA Dental Caries DNA Structure and Function Diseases of Digestive System Skin Structure Cell Cycle The Nervous System and The Senses The Nervous System Vocabulary - Health Anatomy Psychiatry Microbial GrowthOther quiz:
Human Physiology › ViewWhich of the following promotes formation of concentrated urine
A. ANF
B. Coffee
C. Renin
D. Rennin
Renal › View
The kidneys lie retroperitoneally on the posterior abdominal wall at vertebral levels from ________ to _________.
A. T12-L3
B. T2- L1
C. L1-L4
D. T2-T12