seventh cranial nerve

Thân thiện

The doctor points to a diagram of the seventh cranial nerve on the wall.

Definition

1. Noun:
   • Facial nerve: The "seventh cranial nerve" is a paired nerve that emerges from the brainstem. Its primary function is to control the muscles of facial expression.
   • Nerve for facial movement and sensation: It is a mixed nerve, meaning it carries both motor signals (for muscle movement) and sensory signals (for taste from the front two-thirds of the tongue).

Usage Examples

• Noun:
  • Bell's palsy is a condition that results from inflammation or damage to the seventh cranial nerve.
  • The surgeon carefully avoided the seventh cranial nerve during the operation to prevent facial paralysis.

Advanced Usage

• Clinical context: In medical terminology, the "seventh cranial nerve" is often referred to simply by its anatomical name, the facial nerve (CN VII). It is frequently discussed in neurology, otolaryngology, and surgery.
  • The patient's inability to smile on one side indicated a possible lesion of the seventh cranial nerve.

Variants and Related Words

• Facial nerve (n): The common anatomical name for the seventh cranial nerve.
• Cranial nerve VII (n): The Roman numeral designation used in formal anatomical and medical texts.
• Nervus facialis (n): The Latin term used in international anatomical nomenclature.

Synonyms

• Facial nerve: The most direct and commonly used synonym.
• CN VII: The abbreviated form used in medical charts and discussions.

Related Phrases

• Seventh nerve palsy: A medical condition characterized by weakness or paralysis of the facial muscles due to dysfunction of the seventh cranial nerve.
  • The doctor diagnosed the patient with an idiopathic seventh nerve palsy.

Học thuật

Noun

1. cranial nerve that supplies facial muscles

Từ đồng nghĩa

• facial
• facial nerve
• nervus facialis