Foramen magnum: definition, structure and function - Kenhub
2023年10月30日 · The foramen magnum (Latin for “big hole”) is the largest foramen of the skull. It is a large central, oval-shaped opening that lies in the deepest region of the posterior cranial fossa and is the most prominent feature in the floor of this aspect of the cranial base.
Foramen magnum - Wikipedia
The foramen magnum (Latin for 'great hole') is a large, oval-shaped opening in the occipital bone of the skull. It is one of the several oval or circular openings (foramina) in the base of the skull .
Foramen magnum | Description, Anatomy, & Function | Britannica
Foramen magnum, in anatomy, the opening in the base of the skull that connects the spinal cord to the brain. It is the largest foramen (opening) of the skull and is part of the occipital bone (the bone that forms the back and rear base of the skull).
Foramen magnum - Structure, Location, Anatomy, Function
2025年1月17日 · The foramen magnum is a circular opening located at the base of the skull, where the occipital bone and the first cervical vertebra (C1, also known as the atlas) meet. The opening is surrounded by a bony ring known as the foramen magnum margin.
Anatomy, Head and Neck: Foramen Magnum - StatPearls - NCBI Bookshelf
2023年7月24日 · The foramen magnum is the largest foramen of the skull. It is located in the most inferior portion of the cranial fossa as a part of the occipital bone. Its contents include the medulla oblongata, meninges, spinal root of cranial nerve XI, vertebral arteries, anterior and posterior spinal arteries, the tectorial membrane, and alar ligaments.
Foramen Magnum - The Definitive Guide - Biology Dictionary
2020年12月28日 · Where is the Foramen Magnum Located? The foramen magnum is located between the basilar part (base) of the occipital bone, the occipital condyles, and the squamous part of the occipital bone.
Foramen Magnum Placement | Center for Academic Research …
The foramen magnum (from the Latin, meaning “great hole”) is the large opening in the base of the skull through which the spinal cord exits the cranial vault. The foramen magnum is situated in the occipital bone, and forms around the base of the brainstem (the medulla oblongata), separating the brain above from the spinal cord below.
Foramen magnum | Radiology Reference Article - Radiopaedia.org
2024年7月5日 · The foramen magnum is found in the most inferior part of the posterior cranial fossa 3. It is traversed by vital structures including the medulla oblongata 1. In the midline, the anterior margin is the basion and the posterior margin is the opisthion. Relations. anteriorly: basilar part of occipital bone
Foramen magnum - e-Anatomy - IMAIOS
The foramen magnum is a largest opening in the base of the skull, located within the occipital bone, inside the posterior cranial fossa. It is surrounded at the back by the squamous portion of the occipital bone, on the sides by the lateral condylar parts of the same bone, and in the front by the basilar part of the occipital bone. It’s front part is narrow due to being overlapped by the ...
Foramen Magnum - an overview | ScienceDirect Topics
The foramen magnum is an oval-shaped opening in the occipital bone bound by the basiocciput anteriorly, the occipital condyles laterally, and the supraocciput posteriorly. If premature suture fusion occurs and/or endochondral ossification is abnormal, a small foramen magnum is …