Which component of tear film is produced by the conjunctival goblet cells?

Which component of tear film is produced by the conjunctival goblet cells?

• A. Oil/lipid layer
• B. Aqueous layer
• C. Mucinous layer
• D. Protein layer

Answer: (C)

The mucinous layer of the tear film is produced by the conjunctival goblet cells. These specialized cells are located in the conjunctiva, which is the membrane that covers the white part of the eyeball and lines the inside of the eyelids. The primary function of the mucinous layer is to provide a stable surface for tears to adhere to, facilitating the even distribution of the tear film across the ocular surface. Mucins also play an essential role in trapping debris and microorganisms, contributing to overall ocular surface health. By maintaining hydration and ensuring proper lubrication, the mucinous layer helps prevent dryness and maintains visual clarity. Understanding the role of goblet cells and the mucinous layer is crucial for recognizing how different layers of the tear film work together to protect the eye and support its function.

The mucinous layer of the tear film is produced by the conjunctival goblet cells. These specialized cells are located in the conjunctiva, which is the membrane that covers the white part of the eyeball and lines the inside of the eyelids.

The primary function of the mucinous layer is to provide a stable surface for tears to adhere to, facilitating the even distribution of the tear film across the ocular surface. Mucins also play an essential role in trapping debris and microorganisms, contributing to overall ocular surface health. By maintaining hydration and ensuring proper lubrication, the mucinous layer helps prevent dryness and maintains visual clarity.

Understanding the role of goblet cells and the mucinous layer is crucial for recognizing how different layers of the tear film work together to protect the eye and support its function.