plural of foramen

(anatomy) An opening, an orifice, or a short passage, especially in a bone.

(anatomy) The large foramen, or hole, in the occipital bone for the passage of the medulla oblongata and its membranes.

plural of foramen ovale

plural of alar foramen

An opening in the parietal bone for the emissary vein.

(anatomy) Either of the interventricular foramina, channels that connect the paired lateral ventricles with the third ventricle at the midline of the brain.

(anatomy) A shallow depression in the posterior dorsal midline of the tongue that is the remnant of the more cranial part of the embryonic duct from which the thyroid gland developed.

(anatomy) A large irregular opening from the posterior cranial fossa that is bounded anteriorly by the petrous part of the temporal bone and posteriorly by the jugular notch of the occipital bone and that transmits the inferior petrosal sinus, the glossopharyngeal, vagus, and accessory nerves, and the internal jugular vein.

(anatomy) A foramen formed by articulation of a deep notch between the sphenoidal and orbital parts of the vertical plate of the palatine bone with the sphenoid bone.