sphenoid

/'sfi:nɔid/

Thân thiện

A diagram shows the sphenoid bone in the human skull.

Definition

1. Noun:
   • A butterfly-shaped bone at the base of the skull: The sphenoid is a single, complex, unpaired bone situated in the middle of the skull base. Its shape is often compared to a butterfly or a bat with its wings extended. It is a central bone that articulates with and helps connect many other bones of the skull.

Usage

• The sphenoid bone is a crucial structural component of the cranium.
• It is primarily discussed in anatomical, medical, and biological contexts.

Examples

• Noun:
  • The sphenoid forms part of the floor of the cranial cavity.
  • A fracture to the sphenoid bone can be very serious due to its central location.
  • The pituitary gland sits in a depression called the sella turcica, which is part of the sphenoid bone.

Advanced Usage

• "Sphenoid bone": The full anatomical term. While "sphenoid" alone typically refers to this bone, specifying "bone" is common for clarity.
  • The surgeon carefully navigated around the sphenoid bone during the procedure.
• "Sphenoid sinus": One of the paired, air-filled cavities within the body of the sphenoid bone.
  • An infection in the sphenoid sinus can cause deep-seated headaches.

Variants and Related Words

• Sphenoidal (adj): Relating to the sphenoid bone.
  • The sphenoidal region was examined in the scan.
• Basisphenoid (n): A part or element related to the base of the sphenoid bone, often used in comparative anatomy (e.g., in some vertebrates).

Synonyms

• Sphenoid bone: The precise anatomical term.
• Os sphenoidale: The Latin anatomical term.

Related Phrases / Compound Terms

• Greater wing of the sphenoid: A major lateral projection of the sphenoid bone.
• Lesser wing of the sphenoid: A smaller, anterior projection.
• Sphenoidotomy: A surgical procedure to open the sphenoid sinus.

Học thuật

Noun

1. butterfly-shaped bone at the base of the skull

Từ đồng nghĩa

• sphenoid bone
• os sphenoidale