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.
dorsal. adj. 1. (Anatomy) anatomy zoology relating to the back or spinal part of the body. Compare ventral 1. 2. (Botany) botany of, relating to, or situated on the side of an organ that is directed away from the axis.orsal. adj. 1. (Anatomy) anatomy zoology relating to the back or spinal part of the body. Compare ventral 1. 2. (Botany) botany of, relating to, or situated on the side of an organ that is directed away from the axis.