Which one of the following statements is true about the lacrimal excretory system?

Which one of the following statements is true about the lacrimal excretory system?

• A. The lacrimal excretory system does not usually become infected.
• B. Occlusion of the lacrimal excretory system results in a chalazion.
• C. The lacrimal excretory system collects tear film and drains it into the nasal cavity.
• D. The lacrimal excretory system causes dacryostenosis.

Answer: (C)

The statement that the lacrimal excretory system collects tear film and drains it into the nasal cavity is accurate. The lacrimal system is responsible for the production, collection, and drainage of tears. Tears are produced by the lacrimal glands and spread across the surface of the eye, providing lubrication, nutrients, and protection. After performing their function, the tears drain through the puncta, small openings located in the inner corners of the eyelids. From there, they enter the lacrimal canals, which lead into the lacrimal sac, and subsequently through the nasolacrimal duct into the nasal cavity. This drainage pathway explains why crying may produce a runny nose — the excess tears are effectively routed into the nasal passages. Understanding this process highlights the importance of the lacrimal excretory system in maintaining ocular surface health and draining excess fluids efficiently. It also clarifies how disturbances in this system can lead to various conditions, such as epiphora (excessive tearing).

The statement that the lacrimal excretory system collects tear film and drains it into the nasal cavity is accurate. The lacrimal system is responsible for the production, collection, and drainage of tears. Tears are produced by the lacrimal glands and spread across the surface of the eye, providing lubrication, nutrients, and protection.

After performing their function, the tears drain through the puncta, small openings located in the inner corners of the eyelids. From there, they enter the lacrimal canals, which lead into the lacrimal sac, and subsequently through the nasolacrimal duct into the nasal cavity. This drainage pathway explains why crying may produce a runny nose — the excess tears are effectively routed into the nasal passages.

Understanding this process highlights the importance of the lacrimal excretory system in maintaining ocular surface health and draining excess fluids efficiently. It also clarifies how disturbances in this system can lead to various conditions, such as epiphora (excessive tearing).