MICROANATOMY

Detailed explanation-1: -Foramen-A hole through which nerves and blood vessels pass. Examples include supraorbital foramen, infraorbital foramen, and mental foramen on the cranium. Fossa-A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures.

Detailed explanation-2: -The foramen is the hole is an opening or groove in the bone that allows blood vessels and nerve to enter the bone. It i1s one of the several ovals or circular openings in the base of the skull. So, the correct option is ‘Foramen’.

Detailed explanation-3: -The word foramen comes from the Latin word meaning “hole.” Essentially, all of the foramen (singular), or the foramina (plural of foramen), in the skull are holes. They are passageways through the bones of the skull that allow different structures of the nervous and circulatory system to enter and exit the skull.

Detailed explanation-4: -A foramen (plural: foramina ) is an opening inside the body that allows key structures to connect one part of the body to another. The skull bones that contain foramina include the frontal, ethmoid, sphenoid, maxilla, palatine, temporal, and occipital. There are 21 foramina in the human skull.

Detailed explanation-5: -The foramen is the bony hollow archway created by pedicles of adjacent vertebrae, creating a passageway through which all spinal nerve roots run. As a spinal nerve branches from the spinal cord, it exits through this opening and travels to organs, muscles and sensory structures of the body.