Definition

1. Noun:
   • An artery that supplies the shoulder joint and shoulder muscles: The circumflex humeral artery is a blood vessel that encircles the surgical neck of the humerus bone, providing oxygenated blood to the structures of the shoulder region.

Usage

• The term is used in medical, anatomical, and biological contexts to describe a specific component of the circulatory system related to the upper limb.
• It is a precise anatomical term. In general conversation, one would typically refer more broadly to "shoulder arteries" or "blood vessels in the shoulder."

Examples

• Noun:
  • The surgeon carefully avoided the circumflex humeral artery during the procedure.
  • A blockage in the circumflex humeral artery can lead to pain and reduced mobility in the shoulder.

Advanced Usage

• "Anterior circumflex humeral artery": A specific branch of the axillary artery that runs in front of the humerus.
  • The anterior circumflex humeral artery is typically smaller than its posterior counterpart.
• "Posterior circumflex humeral artery": A specific branch of the axillary artery that runs behind the humerus, often larger and accompanying the axillary nerve.
  • The posterior circumflex humeral artery is a major blood supply to the deltoid muscle.

Variants and Related Words

• Circumflex (adj): Bending around; curved. Used in anatomy to describe structures that wind around a part.
  • Other examples include the circumflex iliac artery.
• Humeral (adj): Relating to the humerus (the bone of the upper arm).
  • Humeral head refers to the top part of the humerus that fits into the shoulder socket.

Synonyms

• Artery of the shoulder: A less specific, descriptive synonym.
• There are no direct, single-word synonyms for this precise anatomical term.

Related Phrases

• Arterial supply to the shoulder: A phrase describing the function of this and related arteries.
  • Understanding the arterial supply to the shoulder is crucial for orthopedic surgery.

Related Idioms

• There are no common idioms containing this specific anatomical term.

Noun

1. an artery that supplies the shoulder joint and shoulder muscles