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

On the base of the skull, the occipital bone contains the large opening of the foramen magnum, which allows for passage of the spinal cord as it exits the skull.

From Textbooks ● Jun. 19, 2013

The orbit contains seven muscles, six of which rise close to the optic foramen.

From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" by Various

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

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

From Textbooks ● Jun. 19, 2013

These veins arise from the base of the brain and the cervical region of the spinal cord, and flow largely through the intervertebral foramina in the cervical vertebrae.

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

All have been referred to Z. hudsonius although one female from Stonehouse Creek shows some tendency toward Z. princeps in external measurements, length of upper molariform tooth-row, and length of incisive foramina.

From Mammals taken Along the Alaska Highway by Rollin H. (Rollin Harold) Baker