Cranial canals are narrow passages within the skull that allow for the transmission of nerves and blood vessels. These canals are essential for connecting different parts of the brain to the rest of the body, facilitating communication and function. One of the most notable cranial canals is the optic canal, which transmits the optic nerve from the eye to the brain. Other important canals include the jugular foramen and the carotid canal, each serving specific roles in the nervous and circulatory systems. Understanding these structures is crucial for studying cranial anatomy and related medical conditions.