Definition

1. Adjective:

   • Relating to the metacarpus: Describes anything pertaining to the group of bones in the hand between the wrist (carpus) and the fingers (phalanges).

2. Noun:

   • A bone of the metacarpus: Refers specifically to any one of the five long bones that form the intermediate part of the skeletal hand, connecting the wrist to the fingers.

Examples of Usage

• Adjective:

  • The patient suffered a metacarpal fracture. (The fracture occurred in the region of the hand's long bones.)
  • The surgeon performed a metacarpal reconstruction. (The reconstruction surgery involved the bones of the metacarpus.)

• Noun:

  • He broke the third metacarpal in his right hand. (He fractured the specific long bone corresponding to the middle finger.)
  • The X-ray shows all five metacarpals clearly. (The image displays the set of five bones in the palm.)

Advanced Usage

• Metacarpal arch: Refers to the transverse curvature formed by the heads of the metacarpal bones in the palm.

  • The metacarpal arch is important for grip strength.

• Metacarpophalangeal joint (MCP joint): The joint where a metacarpal bone articulates with a finger bone (phalanx). While this is a compound term, it demonstrates the adjective's use in precise anatomical description.

  • Arthritis commonly affects the metacarpophalangeal joints.

Variants and Related Words

• Metacarpus (n): The collective term for the five metacarpal bones considered as a group; the framework of the palm.
  • The metacarpus forms the structural basis of the hand.

Synonyms

• Palm bone (informal/non-technical): A simple descriptive synonym for the noun form.
• There are no direct, single-word synonyms in technical anatomical language; the term is specific.

Related Phrases

• Base of the metacarpal: The proximal end of the bone, which articulates with the carpal (wrist) bones.
• Head of the metacarpal: The rounded distal end of the bone, which forms the knuckle and articulates with a finger bone.

Related Idioms

• There are no common idioms specifically using the word "metacarpal." Anatomical terms are typically used in technical, medical, or scientific contexts.

Adjective

1. of or relating to the metacarpus
   • metacarpal bones

Noun

1. any bone of the hand between the wrist and fingers