Definition

1. Noun:
   • A nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves; supplies the pelvic region and lower limbs: The "plexus sacralis" is a specific anatomical structure. It is a network of intersecting nerves, formed by the joining of spinal nerves from the lower back (lumbar) and the base of the spine (sacral). Its primary function is to provide nerve signals to and from the pelvic area and the legs.

Examples of Usage

• Noun:
  • The surgeon carefully avoided the plexus sacralis during the procedure.
  • An injury to the plexus sacralis can cause significant pain and mobility issues in the lower body.
  • The sciatic nerve, the largest nerve in the body, originates from the plexus sacralis.

Advanced Usage

• Clinical Context: The term is used almost exclusively in medical, anatomical, and clinical contexts (e.g., surgery, neurology, physical therapy). It is not used in everyday conversation.
  • The MRI scan revealed inflammation affecting the plexus sacralis.

Variants and Related Words

• Sacral plexus: This is the most common English-language synonym for "plexus sacralis." They are used interchangeably.
  • The sacral plexus is crucial for leg movement and sensation.
• Nerve plexus: A general term for any network of intersecting nerves in the body, of which the "plexus sacralis" is one specific example.
  • The brachial plexus and the sacral plexus are both major nerve plexuses.

Synonyms

• Sacral plexus: The direct and most frequently used synonym.

Related Terms (Anatomical Context)

• Lumbar plexus: A separate but closely associated nerve network located higher up, which also contributes to the innervation of the lower limb.
• Sciatic nerve: The major peripheral nerve formed from branches of the sacral plexus, responsible for much of the motor and sensory function of the leg.
• Lumbosacral plexus: A term sometimes used to describe the combined lumbar and sacral plexuses as a functional unit.

Noun

1. a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves; supplies the pelvic region and lower limbs