The foramen and meatus are not bones. They are bone markings -- each is an opening in a bone.
foramen
An opening, hole, perforation, or foramen. A pore, meatus, or foramen. example a sweat pore
Fissure does not belong. The other three words are all bone markings.
Ramus.
The jugular foramen lies between the occipital bone and the temporal bone.
A foraman which is what allows nerves and blood vessels to enter bones.
It is located on temporal side of the skull and it is where sounds enters the human ear leading to the tympanic membrane. It is sometimes referred to as the extermal auditory canal.
The plural of meatus is meatuses or meatus - both forms are accepted.
FORAMEN - Opening or passage in bones where blood vessels and nerves enter and leave. The foramen magnum is the opening of the occipital bone through which the spinal cord passes.
foramen
The bottom of the brain sits on the Occipital bone.
Foramen magnum