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

Below the orbit is the infraorbital foramen, which is the point of emergence for a sensory nerve that supplies the anterior face below the orbit.

From Textbooks ● Jun. 19, 2013

Third unicuspid usually smaller than fourth; upper unicuspids usually with pigmented ridge extending from apices medially to cingula, uninterrupted by antero-posterior groove; post-mandibular foramen usually absent.

From Speciation of the Wandering Shrew by James S. Findley

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

These parallel the vertebral arteries and travel through the transverse foramina of the cervical vertebrae.

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

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

From Textbooks ● Jun. 19, 2013

The pterygoid plates mesial and posterodorsal to the posterior end of the last upper molar are less fenestrated, and the incisive foramina are less constricted posteriorly.

From Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and Colorado by Sydney Anderson