The greater wing of the sphenoid bone, or alisphenoid, is a bony process of the sphenoid bone, positioned in the skull behind each eye. There is one on each side, extending from the side of the body of the sphenoid and curving upward, laterally, and backward.

2024年1月3日 · Greater Wing. The greater wing extends from the sphenoid body in a lateral, superior and posterior direction. It contributes to three parts of the facial skeleton: Floor of the middle cranial fossa; Lateral wall of the skull; Posterolateral wall of the orbit

2022年6月3日 · The greater wings of the sphenoid bone (GWS) are the components of the sphenoid bone that project laterally from the central body and form the anterior and medial portions of the floor of the middle cranial fossa. Many skull base foramina in the GWS transit important neurovascular structures.

2023年10月30日 · The body and lesser wings of the sphenoid bone mature through classic endochondral ossification, whereas the pterygoid processes undergo intramembranous ossification. The development of the greater wings of the sphenoid bone are exceptional since they are the only bony structures of the skull which go through both endochondral and ...

2022年4月18日 · The sphenoid bone consists of a central body, with two lateral paired wings on either side – the lesser and greater wings – and two pterygoid processes. This unique anatomy gives the bone a prominent bat-, butterfly-, or wasp-like appearance.

2021年8月2日 · The greater wing or ali-sphenoid of the sphenoid bone is a process which projects from either side of the lower part of the sphenoid body, at a common junction with the pterygoid process 1.

2023年7月24日 · The sphenoid broadly divides into the central body, the greater wings, the lesser wings, and the pterygoid process. The body of the sphenoid is the medial part of the bone, in between the two lateral greater wings. It contains a depression called the sella turcica, which has a central depression for the pituitary gland.

2019年6月10日 · (B) Posterior view shows the greater wing (G), lesser wing (L), and body (B) of the sphenoid bone. The superior orbital fissure (F), optic canal ( asterisk ), foramen rotundum ( black arrow ), and foramen ovale ( dashed white arrow through the foramen) are highlighted.

2023年3月10日 · The greater wing of sphenoid bone extends outward from its body as a curved bony structure on both sides of the skull. The greater wing, on both right and left sides, contributes to several regions in the skull, including the floor of cranial cavity, the temple area on the sides of the head, and the walls of the eye sockets.The greater wing has ...

2024年5月11日 · The persistent hypophyseal canal, also known as the craniopharyngeal canal when larger, communicates from the pituitary fossa to the nasopharynx. The sphenoid bone arises from multiple centers of ossification 5: Galen (129-199) first described the bone by this name. It is derived from the Greek σφήν (sphen) meaning wedge.