lacrimal duct

Thân thiện

A single tear travels down the lacrimal duct.

Definition

Noun A small tubular passage or channel that transports tears from the lacrimal gland (which produces tears) to the surface of the eye or into the nasal cavity.

Usage

The term "lacrimal duct" is used in anatomical and medical contexts to describe the specific structures responsible for tear drainage. It is a precise scientific term.

Examples

• Noun:
  • A blocked lacrimal duct can cause excessive tearing and eye infections.
  • The ophthalmologist used a tiny probe to clear the obstructed lacrimal duct.
  • Tears flow from the gland through the lacrimal duct to moisten the eye.

Advanced Usage

• "to irrigate a lacrimal duct": A medical procedure to flush out a blocked duct using a sterile solution.
  • The doctor had to irrigate the infant's lacrimal duct to treat the persistent infection.

Variants and Related Words

• Nasolacrimal duct (n): A specific duct that drains tears from the eye into the nasal cavity.
  • The nasolacrimal duct is why your nose runs when you cry.
• Lacrimal apparatus (n): The entire system responsible for tear production and drainage, including the glands and ducts.

Synonyms

• Tear duct: A common, less technical synonym for lacrimal duct.
• Lacrimal canaliculus: Refers more specifically to the very small ducts in the eyelid that first collect tears.

Học thuật

Noun

1. any of several small ducts that carry tears from the lacrimal glands

Từ đồng nghĩa

• lachrymal duct
• tear duct