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 sphenoid has multiple openings for the passage of nerves and blood vessels, including the optic canal, superior orbital fissure, foramen rotundum, foramen ovale, and foramen spinosum.

From Textbooks ● Jun. 19, 2013

The basal line of the cranium from the lower border of the foramen magnum to the incisor border of the palate is nearly straight.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 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

Blood vessels and nerves enter the bone through the nutrient foramina to nourish and innervate bones.

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 interventricular foramina connect the frontal region of the lateral ventricles with the third ventricle.

From Textbooks ● Jun. 19, 2013

If their cavities were connected with the lungs the foramina are inconspicuous and unlike the immense holes seen in the sides of the vertebræ.

From Dragons of the Air An Account of Extinct Flying Reptiles by H. G. Seeley