foramen

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By counting neurovascular foramina on Aardonyx, a recently described ancestor of sauropods, he and his colleagues inferred that the creature had lips but didn't have fleshy cheeks.
Computed tomography is used to detect undisplaced fractures, extension into the vertebral foramina and to localize displaced fragments.
1,3,5) If the fracture extends into the transverse foramina, angiography may be indicated to exclude vertebral artery dissection or intimal injury.
Both the anterior and posterior ethmoid foramina are usually situated along the frontoethmoid suture line (figure, A).