foramen

A patent foramen ovale - or PFO - which is a small hole between the top two chambers of the heart.

From BBC ● Jan. 1, 2025

It had a prominent pineal foramen -- a hole in the top of its head that many lizard species use to sense sunlight and judge the length of daylight hours.

From Science Daily ● Nov. 29, 2023

The shape of the opening at the base of its skull—the foramen magnum—suggested Sahelanthropus balanced its head on top of a vertical neck, similar to upright walkers such as today’s humans.

From Science Magazine ● Aug. 24, 2022

The canal then runs anteromedially within the bony base of the skull, and then turns upward to its exit in the floor of the middle cranial cavity, above the foramen lacerum.

From Textbooks ● Jun. 19, 2013

The middle of the anterior margin of the great foramen of the skull.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Noah Webster

Lizards and iguanas, however, sport a single row of large holes above their teeth, called foramina, where blood vessels and nerves pass through.

From Science Magazine ● Mar. 29, 2023

Openings here include the large foramen magnum, plus the internal acoustic meatus, jugular foramina, and hypoglossal canals.

From Textbooks ● Jun. 19, 2013

The sacrospinous and sacrotuberous ligaments contribute to the formation of the greater and lesser sciatic foramina.

From Textbooks ● Jun. 19, 2013

The name of a spinal cord region corresponds to the level at which spinal nerves pass through the intervertebral foramina.

From Textbooks ● Jun. 19, 2013

In comparing the ventral views of skulls note especially the size and location of incisive foramina and posterior palatine foramina as well as the breadth of mesopterygoid fossae.

From Comments on the Taxonomic Status of Apodemus peninsulae, with Description of a New Subspecies from North China by J. Knox Jones