costa

Thân thiện

A diagram clearly labels the costa of a human ribcage.

Definition

1. Noun:
   • A rib in humans and other vertebrates: In anatomy, a "costa" refers specifically to one of the curved bones that form the rib cage, extending from the spine to the chest wall.
   • A rib-like structure in biology: In botany and zoology, a "costa" is a ridge, vein, or rib-like supporting structure, such as the central vein of a leaf or a strengthening vein in an insect's wing.

Usage Examples

• Noun (Anatomy):
  • The surgeon examined the fractured costa.
  • Each costa connects to a thoracic vertebra.
• Noun (Biology):
  • The leaf's prominent costa provides structural support.
  • The insect's wing has a strong costa along its leading edge.

Advanced Usage

• Technical/Medical Context: The term is primarily used in technical, medical, and scientific writing rather than everyday conversation.
  • The diagnosis indicated a fracture of the ninth costa.
• Descriptive Biology: Used to describe analogous supporting structures in various organisms.
  • The costa of the fern frond is clearly visible.

Variants and Related Words

• Costal (adjective): Pertaining to a rib or a rib-like structure.
  • The costal cartilage connects the ribs to the sternum.
• Intercostal (adjective): Situated between the ribs.
  • The intercostal muscles assist in breathing.

Synonyms

• Rib: The common term for a "costa" in anatomy.
• Vein (in botany/entomology): A similar supporting structure, though "costa" often refers to a primary, central one.

Related Phrases/Idioms

(This term is highly technical and does not commonly appear in idiomatic expressions or phrasal verbs.)

Học thuật

Noun

1. any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates)
2. a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)

Từ đồng nghĩa

• rib