end-to-end anastomosis. 1. one connecting the end of an artery and that of some other vessel. 2. anastomosis of two sections of colon, as with partial colectomy or closure of an ileostomy. end-to-side anastomosis an anastomosis connecting the end of one vessel with the side of a larger one.heterocladic anastomosis one between branches of different arteries.nd-to-end anastomosis. 1. one connecting the end of an artery and that of some other vessel. 2. anastomosis of two sections of colon, as with partial colectomy or closure of an ileostomy. end-to-side anastomosis an anastomosis connecting the end of one vessel with the side of a larger one.
Shown here is a depiction of a human brain beside a noticeably bigger elephant brain. The average human brain weighs in at around 3 pounds, and an elephant brain can weigh close to four times that much, but the biggest brains of all come sperm whales, and weigh an average of 17 pounds.
The average human brain weighs about 1360 grams, or 3 lbs. Thatâs about four times lighter than an elephant brain. The heaviest mammalian brain is found in the sperm whale â weighing 7711 grams (17 lbs). Larger brains are needed, in part, to control larger muscles. At the other end of the scale is the owl brain that weighs just over two grams. A bullfrog's brain is about one-tenth smaller than that.