The hearta. is a four-chambered muscular pumpb. is posterior to the tracheac. is lined with an epithelial layer called epicardiumd. lies mostly to the right of the midline of the sternume. has a superior apex and an inferior base
Blood in the superior vena cava will enter the _____.a. Aortab. right atriumc. pulmonary trunkd. pulmonary arteriese. pulmonary veins