Parts of the sphenoid bone

The posterior part lies next to the basilar part of the occipital being termed post-sphenoid and the anterior part pre-sphenoid. It is situated in the middle of the skull towards the front in front of the basilar part of the occipital boneThe sphenoid bone is one of the seven bones that articulate to form the orbit.

The neural relationships of the sphenoid bone are among the most complex of any bone.

Parts of the sphenoid bone. There are four main parts to the sphenoid bone. The body corpus the lesser and greater wings alae minores et majores and the pterygoid processes. The sphenoid bone is said to be butterfly-shaped.

It consists of a body paired greater wings and lesser wings and two pterygoid processes. The body lies at the centre of the sphenoid bone and is almost completely cubical in shape. The sphenoid bone shares a boundary with the frontal bone via the sphenofrontal suture the parietal bone via the sphenoparietal suture the temporal squamous portion via the sphenosquamosal suture and the occipital bone via the spheno-occipital suture.

The spheno-occipital suture disappears by the age of 25 when the sphenoid and occipital bones fuse during puberty. The sphenoid bone joins anteriorly with the frontal and ethmoid bones laterally with the temporal bones and posteriorly with the occipital bone. The sphenoid lies posterior and slightly superior to the nasal cavity and forms part of the floor side walls and rear wall of the orbit Figure 1.

The sphenoid bone is a large complex unpaired bone forming the central parts of the anterior and central skull base. Parts of the sphenoid bone include. Pterygoid process and plates.

The sphenoid bone articulates with twelve bones. Anteriorly the sphenoid bone articulates with the ethmoid and frontal bones laterally with the temporal bones and posteriorly with the basiocciput. Essentially the sphenoid functions as an attachment site for the majority of the masticator musculature and serves as a key conduit for the passage of nerves and blood vessels of the head and neck.

The sphenoid bone is made up of several parts. A central body that contains the sella turcica and two greater wings and two lesser wings laterally. The greater wings make up the anterior portions of both middle fossae and the lesser wings make up the posterior portion of the anterior cranial fossa.

The sphenoid bone of the skull base is one of the most complex bones of the body. It is an unpaired bone with many foramina holes and grooves that allow nerves and blood vessels to pass through or along it. The form of the sphenoid bone is often referred to as bat-shaped wasp-shaped or butterfly-shaped.

In this video Im using the Visible Body Human Anatomy Atlas app iOS 2018 version. My favorite anatomy app BY FAR. 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. The body also houses the sphenoidal sinuses. The two lesser wings of the sphenoid are present anterior to the body and are triangular.

The sphenoid bone is situated at the base of the skull in front of the temporals and basilar part of the occipital. It somewhat resembles a bat with its wings extended and is divided into a median portion or body two great and two small wings extending outward from the sides of the body and two pterygoid processes which project from it below. The sphenoid bone is situated at the base of the skull in front of the temporals and basilar part of the occipital.

It somewhat resembles a bat with its wings extended and is divided into a median portion or body two great and two small wings extending outward from the sides of the body and two pterygoid processes which project from it below. Sphenoid bone upper surface. The sphenoid bone is an unpaired bone of the neurocranium.

It is situated in the middle of the skull towards the front in front of the basilar part of the occipital boneThe sphenoid bone is one of the seven bones that articulate to form the orbit. The passage through the orbit of the eye in the lesser wing of the sphenoid bone that is traversed by the optic nerve and ophthalmic arterycalled also optic canal. Superior orbital fissure is a foramen in the skull although strictly it is more of a cleft lying between.

The sphenoid bone is a singular and key bone in the skull having many foramina and fissures and articulations with several other bones. In this anterior view the lesser wings are separated from the greater wings by the superior orbital fissure. Centrally the body of.

The sphenoid bone is joined by an interconnection of bones. These include Palatines Zygomatic Temporals Parietals Occipital Frontal Ethmoid and Vomer Bones. The palatines bone is found on the back side of the nasal passage connecting the pterygoid process and the maxilla.

The zygomatic is also referred to as malar bone or the cheekbone. The neural relationships of the sphenoid bone are among the most complex of any bone. The olfactory tracts gyrus rectus and posterior part of the frontal lobe rest against the smooth upper surface of the lesser wing.

The temporal lobe rests against the inner surface of the greater wing. The pons and mesencephalon lie posterior to the clival portion. The optic chiasm lies posterior to the chiasmatic.

The Sphenoid bone of Ox is placed at the base of the skull. In the calf at birth and some months after it consists of two pieces. The posterior part lies next to the basilar part of the occipital being termed post-sphenoid and the anterior part pre-sphenoid.

Ventral aspect of sphenoid bone. The sphenoid bone comprises the central part corpus the pairs of greater and lesser wings and pterygoid processes. Top view of the sphenoid bone demonstrating the sella turcica the saddle-shaped depression on top of the.

The sphenoid bone joins the orbit and facial region with the cranial convexity and the skull base. The lesser wing ala minor sv. Parva of the sphenoid bone forms part of the orbital roof and the ala major part of the lateral wall of the orbit.

Its external surface is related to the temporal infratemporal and pterygopalatine fossa.