third cranial nerve

Thân thiện

The doctor points to a diagram of the third cranial nerve.

Definition

1. Noun:
   • Oculomotor nerve: The third cranial nerve is a motor nerve that controls most of the eye's movements, including the constriction of the pupil and the positioning of the eyelid.

Usage Examples

• Noun:
  • Damage to the third cranial nerve can cause double vision and a drooping eyelid.
  • The third cranial nerve emerges from the midbrain and innervates several extrinsic eye muscles.

Advanced Usage

• Clinical assessment: In neurological examinations, the function of the is tested by checking eye movements and pupillary response to light.
  • The physician assessed the patient's third cranial nerve function by having them follow a moving light.

Variants and Related Words

• Cranial Nerve III: A synonymous anatomical term.
  • Cranial Nerve III palsy is a specific medical diagnosis.
• Oculomotor nerve: The most common alternative name.
  • The oculomotor nerve is responsible for elevating the upper eyelid.

Synonyms

• Oculomotor nerve: The direct synonym.
• CN III: The abbreviated form used in medical charts.

Related Phrases

• Third nerve palsy: A medical condition resulting from dysfunction of this nerve.
  • Symptoms of third nerve palsy include ptosis and an inability to move the eye inward.

Học thuật

Noun

1. supplies extrinsic muscles of the eye

Từ đồng nghĩa

• oculomotor
• oculomotor nerve
• nervus oculomotorius