A natural opening or passageway, specifically into or through a bone.
The opening into the ovule [old-fashioned term, not recommended].
Hole or opening, especially in a bone or membrane (e.g., foramen ovale, opening between the two atria of the fetal heart that closes after birth).
An opening or hole in a bone, allowing the passage of nerves or blood vessels.
A natural opening inside the body, e.g. the opening in a bone through which veins or nerves pass.
An opening in a bone through which nerves, blood vessels, and other structures pass.
An opening or hole, particularly in a bone. The apical foramen is the small opening at the apex of a tooth. The foramen magnum is a large hole in the occipital bone through which the spinal cord passes. The foramen ovale is the opening between the two atria of the fetal heart, which allows blood to flow from the right to the left side of the heart by displacing a membranous valve.
The Latin term for a hole. It is especially applied to natural openings in bones, such as the foramen magnum, the large opening in the base of the skull through which the brain and spinal cord are continuous.
A passage or opening; an orifice, a communication between two cavities of an organ, or a hole in a bone for passage of vessels or nerves.
A foramen is a natural opening or hole in a bone or other structure in the body, typically serving as a passageway for nerves or blood vessels. An instance of this is the foramen magnum, which is an opening at the base of the skull that allows the spinal cord to pass through.