Definition

Noun: 1. A major artery of the forearm: The radial artery is a significant blood vessel that branches from the brachial artery. It runs along the radial side (thumb side) of the forearm, continues around the wrist, and supplies blood to parts of the hand and fingers.

Usage

The term "radial artery" is used in medical, anatomical, and clinical contexts to refer to this specific blood vessel. * The radial artery is commonly used to measure pulse rate at the wrist. * Surgeons must take care not to damage the radial artery during procedures on the forearm. * A blockage in the radial artery can affect blood flow to the hand.

Advanced Usage

• Radial artery access: A common technique in cardiology where the radial artery at the wrist is used as an entry point for catheterization procedures, often preferred over femoral artery access.
  • The patient underwent coronary angiography via radial artery access.
• Allen's test: A clinical test performed before radial artery cannulation to ensure adequate blood supply to the hand from the ulnar artery.
  • A positive Allen's test confirms it is safe to proceed with radial artery puncture.

Variants and Related Words

• Radial (Adjective): Pertaining to the radius (bone) or to structures located on the thumb side of the forearm. Also meaning arranged like rays or radii from a center.
  • The radial nerve runs near the radial artery.
• Artery (Noun): Any of the muscular-walled tubes forming part of the circulation system by which blood is conveyed from the heart to all parts of the body.

Synonyms

• Arteria radialis: The formal Latin anatomical term.

Related Anatomical Structures

• Brachial artery: The main artery of the upper arm from which the radial artery branches.
• Ulnar artery: The other major artery of the forearm, running along the ulnar side (little finger side).
• Superficial palmar arch: A vascular arch in the palm formed primarily by the ulnar artery, with contributions from the radial artery.
• Deep palmar arch: A vascular arch in the palm formed primarily by the radial artery, with contributions from the ulnar artery.

Noun

1. branch of the brachial artery beginning below the elbow and extending down the forearm around the wrist and into the palm