A void contract can be one in which any of the prerequisites of a valid contract is/are absent for example if there is no contractual capacity, the contract can be deemed as void. In fact, void means that a contract does not exist at all.
The ventricular system is a set of four interconnected cavities (ventricles) in the brain and the location of CSF production. This system is continuous with the central canal of the spinal cord. The system comprises four ventricles: right and left lateral ventricles (the first and second ventricles) third ventricle.
Ventricle, muscular chamber that pumps blood out of the heart and into the circulatory system. Ventricles occur among some invertebrates. Among vertebrates, fishes and amphibians generally have a single ventricle, while reptiles, birds, and mammals have two. In humans, the ventricles are the two lower chambers of the heart.