★ 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:
Biochemistry of Diabetes A&P Musculoskeletal Musculoskeletal System Medical Terminology Respiratory and Urinary Principles of Microbiology Viruses and Prions Physical Education Health and Wellness MS Neurology Renal System - Pharmacology Enzymes and Metabolic Pathways Surgical Vocabulary Health and Hygiene Pathophysiology - Adaptive Immunity Pathology InflammationOther quiz:
Enzymes and ATP Structure › Viewsugar component of ATP.
A. sucrose
B. fructose
C. ribose
D. glucose
Protein and Amino Acid Metabolism › View
Which amino acid classification includes cysteine and methionine?
A. Polar amino acids
B. Aromatic amino acids
C. Non-polar amino acids
D. Sulfur-containing amino acids