The heart
A. is a four-chambered muscular pump.
B. has a superior apex and an inferior base.
C. is posterior to the trachea.
D. lies mostly to the right of the midline of the sternum.
E. is lined with an epithelial layer called the epicardium.
Answer: A
You might also like to view...
Due to its recorded appearance, an action potential often referred to a ____
a. plateau b. hockey stick c. spike d. table e. bell
Of the following muscle types, which type is not branched and has one nucleus per cell?
A) skeletal muscle B) cardiac muscle C) smooth muscle D) All of the above
Proteins in cells can act as important buffer systems. If intracellular pH rises, certain ________ of proteins can ________ H+ to return pH to normal conditions.
A. amino acids; accept B. nucleotides; donate C. nucleotides; accept D. amino acids; donate
Sensory impulses from baroreceptors located in the _____ are transmitted to the cardiovascular control center on the _____ nerve.
A) superior vena cava; vagus nerve B) carotid sinus; glossopharyngeal nerve C) descending aorta; spinal nerves D) right subclavian artery; vertebral nerves