Greater And Lesser Wing Of Sphenoid

The lesser wing of the sphenoid bone or orbito sphenoid is a sharp pointed triangular plate arising laterally from the upper anterior portion of the sphenoid body. The lesser wings are flattened triangular in shape and located above and anterior to the greater wings.

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An anterior triangular process on each side of the sphenoid bone in front of and much smaller than the corresponding greater wing.

Greater and lesser wing of sphenoid. Lesser wing ala minor sphenoidalis is the smaller of two wing like lateral extensions that arise from the sides of the sphenoid body. Medical definition of lesser wing. The superior surface is flattened and is in contact with the frontal lobe of the brain.

They conduct the maxillary nerve mandibular nerve and middle meningeal vessels respectively. The sphenoid bone is the most complex bone of the human body because of its shape it is also known as the wasp bone. There are three foramina present in the greater wing the foramen rotundum foramen ovale and foramen spinosum.

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. The lesser wing features both superior and inferior surfaces. 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.

Os sphenoidale is a single bone that lies in the base of the skull between the frontal temporal and occipital bones the sphenoid bone has a central body paired greater and lesser wings that extend laterally from the body of the sphenoid and two pterygoid processes descending from the junction of the body and greater wings. It is a paired structure which curves upward backward and laterally from each side of the sphenoid body which can be likened to the extended wings of a bat 2. It is a compound bone with a median body and paired lateral greater and lesser wings fig.

There is one on each side extending from the side of the body of the sphenoid and curving upward laterally and backward. The greater wing of the sphenoid bone or alisphenoid is a bony process of the sphenoid bone. In some animals they remain as separate bones called orbitosphenoids.

The sphenoid bone also sphenoidal bone sphenoid latin. The sphenoid bone forms the central skull base and viewed anteriorly resembles a bird with its wings unfurled. 3 1 at the ventral junction of the body and wings the paired pterygoid processes arise inferiorly resembling the extended limbs of a bird.

Cranial floor view anterior view learn the bones of the body step by step with this interactive quiz guide. It separates the anterior. The inferior surface forms the upper border of the superior.

The lesser wings of the sphenoid or orbito sphenoids are two thin triangular plates which arise from the upper and anterior parts of the body and projecting lateralward end in sharp points fig. The soft tissue structures such are the cranial nerves and parts of the brain are associated with this bone and have intense relations to it. The lesser wing arises from the anterior aspect of the sphenoid body in a superolateral direction.

Sphenoid Bone