Heart and along the conduction system of the heart. The heart receives blood low in oxygen from the systemic circulation, which enters the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here it is pumped into the pulmonary circulation, through the lungs where it receives oxygen and gives off carbon dioxide. Oxygenated blood then returns to the left atrium, passes through the left ventricle and is pumped out through the aorta to the systemic circulation−where the oxygen is used and metabolized to carbon dioxide. The heart beats at a resting rate close to
Which Is Witch Which Is Witch Which Is Witch is a 1948 "Looney Tunes" cartoon released by Warner Bros. in 1949, directed by Friz Freleng and written by Tedd Pierce. Bugs Bunny is exploring Dark Africa. A short witch doctor ("Dr. I.C. Spots") wants to use him as a key ingredient in a prescription. Initially believing he is enjoying a hot bath, Bugs notices that he's being cooked and escapes, while Dr. Spots chases him. Bugs disguises himself as a Zulu native woman but this ploy fails. In the river, he finds and swims to a ferry boat. As Dr. Spots follows a