Answer 2: Snails are really interesting! Most snails are considered to be hermaphrodites and have both male and female reproductive organs. Snails are able to reproduce when they are 1-year-old (they live to be about 5-7 years old but some as long as 25 years!) at which time they must find a snail partner to mate with.
The posterior descending artery, which is also known as the posterior inter-ventricular artery, is a branch of one of the heart's main arteries. In most people, the posterior descending artery branches away from the right coronary artery, which is called right coronary artery dominance. In left coronary artery dominance, the posterior descending artery branches away from the left circumflex artery.
In congenital absence of the spleen (very rare), the splenic artery terminates in the pancreas. Variant branches of the splenic artery: The posterior gastric artery is a branch of the splenic and it is present 48 to 67.8% of individuals; DiDio et al. found it in 46% of their subjects.t may divide into two branches that reunite, the splenic vein passing through the loop thus formed. It may give rise to branches normally derived from other vessels, such as the left gastric, middle colic, and left hepatic. The splenic artery supplies four to six (more or less) gastric vasa brevia arteries.