Definition

1. Noun:
   • A groove between the ribs where the nerves and blood vessels are: A "costal groove" is an anatomical feature, specifically a long, narrow depression or furrow located on the inner (internal) surface of a rib. This groove provides a protected pathway for the intercostal nerves and blood vessels (the intercostal artery and vein) to run along the rib cage.

Usage Examples

• Noun:
  • The surgeon carefully avoided the neurovascular bundle located within the costal groove.
  • In anatomy class, we learned that the intercostal vessels and nerve are sheltered by the costal groove.
  • The presence of a well-defined costal groove is a characteristic feature of typical ribs.

Advanced Usage

• "To be located in/within the costal groove": This phrase specifies the precise anatomical position of the neurovascular structures.
  • The intercostal nerve runs in the costal groove, just inferior to the corresponding artery and vein.

Variants and Related Words

• Costal (adj): Pertaining to a rib or the ribs.
  • The costal cartilage connects the ribs to the sternum.
• Groove (n): A long, narrow cut or depression, especially one made to guide motion or receive a corresponding ridge.
  • The record spins in the groove.

Synonyms

• Intercostal groove: A less common but technically accurate synonym, as the groove is associated with the intercostal space.
• Subcostal groove: An alternative term sometimes used in anatomical texts.

Related Phrases

• Neurovascular bundle of the intercostal space: This is the collective term for the structures (nerve, artery, vein) that occupy the costal groove.
• Costal margin: The lower edge of the rib cage, formed by the costal cartilages of the 7th to 10th ribs. This is a different anatomical landmark.

Noun

1. groove between the ribs where the nerves and blood vessels are