Ceruminous glands secrete?
A.
Ear wax
B.
Keratin
C.
Sebum
D.
Mucus
The correct answer and Explanation is :
The correct answer is A. Ear wax.
Ceruminous glands are specialized sweat glands located in the external ear canal. These glands secrete a substance commonly known as ear wax or cerumen. Cerumen is a complex mixture of secretions from ceruminous glands and sebaceous glands (which produce sebum).
Ear wax plays a crucial role in ear health. It helps protect the ear canal by trapping dust, debris, and microorganisms, preventing them from reaching the delicate structures of the inner ear. Additionally, cerumen has antimicrobial properties that help guard against infections. The wax also helps to lubricate the ear canal, which can prevent dryness and itching.
Ceruminous glands are modified apocrine glands. Unlike typical sweat glands, which primarily secrete a watery fluid, ceruminous glands secrete a thicker, more viscous substance. This waxy secretion combines with sebum (produced by sebaceous glands) and dead skin cells to form cerumen.
The production of ear wax is a normal physiological process. However, excessive buildup can sometimes lead to ear problems. In some cases, cerumen can become impacted, blocking the ear canal and potentially causing hearing loss, discomfort, or infections. If this occurs, professional medical intervention might be required to safely remove the excess wax.
Regular ear care involves maintaining a healthy balance; using ear drops or other over-the-counter treatments to soften the wax may help manage ear wax levels. However, it’s important to avoid inserting objects like cotton swabs into the ear canal, as this can push the wax further in and exacerbate problems.
In summary, ceruminous glands secrete ear wax, which serves essential protective and lubricating functions for the ear canal.