For most Parkinson's patients, the cause lies somewhere in the middle. While many Parkinson's patients report one or more family members with the disease, it is not always clear that one or several genes are the cause.
In fish there are two aorta: the ventral aorta that carries blood to the gills, and a separate dorsal aorta that carries the blood to the body.This works well with a fish's two chambered heart.n fish there are two aorta: the ventral aorta that carries blood to the gills, and a separate dorsal aorta that carries the blood to the body.
The adjective ventral refers to the area on the body in the lower front, around the stomach area. The ventral fin on a fish is the one on its belly. The ventral area of anything, plant or animal, is its underside. In directional terms, the ventral side is the area forward from (or under) the spinal cord. The word comes from the Latin noun venter, which meant belly, which lent its meaning to ventrÄlis, which referred to anything pertaining to the belly area.