Contents

Name of bone

Sphenoid

Location/Articulation

The sphenoid bone (from the Greek sphenoeides, or “wedgelike”) is situated at the base of the skull, in front of the temporal bone and basilar part of the occipital bone. The sphenoid bone is one of the seven bones whose articulation forms the orbit. Its shape somewhat resembles that of a butterfly or bat with its wings extended.


Figure 1. Sphenoid bone, center right


Figure 2. Sphenoid bone, upper surface

Muscle and ligament attachments

Surface anatomy

The sphenoid bone is divided into the following parts:

  • A median portion, known as the body of sphenoid bone, containing the sella turcica which houses the pituitary gland
  • Two greater wings and two lesser wings
  • Pterygoid processes of the sphenoides, which project from it posteriorly

Two sphenoidal conchae are situated at the anterior and posterior part of the body.

Radiography

Physical examination

Embryology

Anomalies

Injuries/Disorders

Attachments:


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