Meibomian glands
sebaceous glands
Sty
Eyelids are primarily composed of skin, muscles, connective tissue, and glands. The skin on the outside of the eyelids contains hair follicles and sweat glands, while the inside of the eyelids have a mucous membrane lining. Smooth muscles called orbicularis oculi help control the movement of the eyelids.
The tarsal glands, also known as Meibomian glands, are modified sebaceous glands located along the edges of the eyelids. They secrete an oily substance that helps prevent tear evaporation and keeps the surface of the eye lubricated. These glands can become blocked or infected, leading to conditions such as meibomian gland dysfunction.
Ciliary glands (Glands of Moll) are modified sweat glands in the eyelid which generally open into the eyelash follicles. Their exact function is not known, but they are hypothesized to be key in the combat of pathogenic microorganisms entering the eye because of bacteriolytic and immunoglobin components found in their secretions.
Stingrays don't have mammary glands. Mammary glands are only found on mammals. Stingrays are fish.
Meibomian glands: Produce oily secretions that help prevent evaporation of tears. Moll glands: Secrete fluid to lubricate the eyelashes and prevent them from sticking together. Zeis glands: Produce oil to moisturize and protect the hair follicles around the eyelashes. Sebaceous glands: Keep the skin around the eyelids moist and prevent it from drying out. Eccrine sweat glands: Help regulate temperature by producing sweat.
The tarsal glands located posterior to the eyelashes secrete an oily substance.
Tears come from the lachrymal glands, located under your upper eyelids.
Footpads only
Blepharitis is a common and chronic inflammation of the eyelids that causes red, swollen, and itchy eyelids. It can result from bacterial overgrowth, skin conditions, or blocked oil glands near the eyelashes. Treatment typically involves keeping the eyelids clean, warm compresses, and sometimes antibiotic ointments.
Only Apocrine sweat glands are found in the axilla and anal region. The glands connect to hair follicles and are the sweat that produces odour) Eccrine sweat glands are found all over the body and open onto the skin. Sebaceous sweat glands are found all over the skin (with the exception of our palms and soles) and are connected to hair follicles.