Which circuit of the cardiovascular system includes the left ventricle and aorta?
A. Coronary circuit
B. Systemic circuit
C. Pulmonary circuit
D. Cardio circuit
Answer: B
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The superior part of the sternum is called the
A) apex. B) xiphoid. C) coccyx. D) manubrium. E) head.
Lysosomes ________.
A) are always used for the cell to "commit suicide" B) contain acid hydrolases that are potentially dangerous to the cell C) maintain a highly alkaline internal environment D) are the major site of protein synthesis
If your doctor notices a marked decrease in calcium ion levels in your blood, what gland might he suspect is not functioning properly and why?
What will be an ideal response
Mutations in the cardiac ryanodine receptor have been associated with cardiac arrhythmias
Specifically, a mutation in the cardiac ryanodine receptor that increases Ca++ efflux from the SR promotes the development of delayed afterdepolarizations by: A. decreasing the activity of calcineurin B. increasing Ca++ efflux through the Na+-Ca++ antiporter C. increasing mitochondrial Ca++ uptake D. decreasing actin-myosin interactions E. increasing the activity of K+ channels