Which of the following is NOT involved in refraction?
A. Cornea
B. Lens
C. Aqueous humor
D. Pupil
Answer: D
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Reactant molecules of enzyme action are called ________.
A. products B. substrates C. allosteric inhibitors D. cofactors
What is the composition of the subcutaneous layer?
A. Areolar connective tissue and adipose connective tissue B. Dense irregular connective tissue C. Areolar connective tissue and dense irregular connective tissue D. Adipose connective tissue E. Areolar connective tissue
The sinoatrial node is normally the heart's pacemaker because it has the fastest spontaneous rate of diastolic depolarization.
Answer the following statement true (T) or false (F)
Which statement correctly describes the function of the pulmonary artery?
A) The pulmonary artery carries blood to be oxygenated in the lungs. B) The pulmonary artery returns oxygenated blood to the heart. C) The pulmonary artery carries deoxygenated blood back to the heart. D) The pulmonary artery brings oxygen and nutrients to the lung tissue.