Definition

1. Noun:
   • A network of nerves: The brachial plexus is a complex network of nerves, specifically formed by the ventral rami of the lower four cervical spinal nerves and the first thoracic spinal nerve (C5-C8 and T1).
   • Supplies the arm and shoulder: This network is responsible for supplying motor and sensory innervation to the upper limb, including the shoulder, arm, forearm, and hand.

Usage Examples

• Noun:
  • Damage to the brachial plexus can cause weakness or numbness in the arm.
  • The surgeon carefully dissected the area to expose the brachial plexus.
  • The brachial plexus is vulnerable to injury during childbirth or trauma.

Advanced Usage

• Medical Context: The term is primarily used in medical, anatomical, and clinical contexts (e.g., neurology, orthopedics, anesthesiology).
  • The anesthesiologist performed a brachial plexus block to numb the patient's arm for surgery.
• Pathological Conditions: Often discussed in relation to specific injuries or syndromes.
  • Brachial plexopathy refers to any disorder affecting the brachial plexus.

Variants and Related Words

• Plexus (n): A general term for a network of nerves or blood vessels.
  • The solar plexus is another major nerve network in the abdomen.
• Brachial (adj): Relating to the arm.
  • The brachial artery is the major blood vessel of the upper arm.

Synonyms

• Nerve plexus of the arm: A descriptive synonym.
• (None are perfect synonyms): In technical contexts, the specific term "brachial plexus" is almost always used without substitution.

Related Phrases

• Brachial plexus injury: Damage to this nerve network.
  • The football player suffered a brachial plexus injury during the tackle.
• Brachial plexus block: A regional anesthesia technique.
  • A brachial plexus block is often used for hand and forearm surgeries.

Related Idioms

• (Not applicable): As a specific anatomical term, "brachial plexus" is not used in idiomatic expressions.

Noun

1. a network of nerves formed by cervical and thoracic spinal nerves and supplying the arm and parts of the shoulder