The sphenoidal spine (Latin: "spina angularis") is a downwardly directed process at the apex of the great wings of the sphenoid bone that serves as the origin of the sphenomandibular ligament. [ 1 ] Additional images

2023年10月30日 · The sphenoid bone is one of the most complex bones of the human body.Due to its shape, it is also referred to as the 'wasp bone'. It makes up most of the middle part of the base of the skull and contributes to the floor of the middle cranial fossa of the skull.. The soft tissue structures such are the cranial nerves and parts of the brain are associated with this bone and have intense ...

The spine of sphenoid bone is a downward-pointing bony protrusion located at the skull's base. Precisely situated at the confluence of the posteromedial and posterolateral borders of the greater wing of the sphenoid bone, this structure is positioned just posterior to the foramen spinosum.The spine of sphenoid bone is related medially to the sulcus for the auditory tube.

2024年1月3日 · There are three foramina present in the greater wing – the foramen rotundum, foramen ovale and foramen spinosum. They conduct the maxillary nerve, mandibular nerve and middle meningeal vessels respectively. The lesser wing arises from the anterior aspect of the sphenoid body in a superolateral direction.

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. ... The inferior surface presents a triangular spine in the middle line, the sphenoidal spine or ...

2018年2月8日 · The description of the sphenoidal spine can be found in usual anatomical textbooks dealing with the anatomy of the sphenoid bone. Gray’s anatomy, for example, describes the greater sphenoidal wing as presenting at its posterior part the spina angularis, attaching the sphenomandibular ligament and the Tensor veli palatini .

2023年7月24日 · The sphenoid is just one of the twenty-two bones that form the skull and essentially helps to connect the neurocranium to the facial skeleton. It is a single bone in the midline of the cranial cavity situated posterior to the frontal bone but anterior to the occipital. Its name derives from the Greek 'sphenoeides,' which means wedge-shaped. It has several foramina and fissures present in its ...

2023年12月12日 · The sphenoid bone encompasses a central body, alongside two lateral paired wings on both sides – the lesser and greater wings – and two pterygoid processes. ... The inferior surface presents a triangular spine in the middle line, the sphenoidal spine or rostrum, which is continuous with the sphenoidal crest on the anterior surface. It also ...

2023年10月11日 · The sphenoid bone, an unpaired, irregular, and pneumatic (air-filled) component of the neurocranium, is a clinically important landmark, particularly in surgery and radiology.

spine of sphenoid bone [TA] a posterior and downward projection from the greater wing of the sphenoid bone on either side, located posterolateral to the foramen spinosum, so named for its proximity to this spine; gives attachment to the sphenomandibular ligament. Synonym(s): spina ossis sphenoidalis [TA], alar spine, angular spine, processus spinosus ...