Appendages of the skin include hair, nails, and sudoriferous and ___________________ glands.
Sebaceous
Sebaceous glands are small oil-producing glands that are found all over the skin except in the palms of hands and soles of feet. These glands are responsible for producing and secreting an oily substance known as sebum, which acts as a lubricant for the skin and hair, and also helps to waterproof and protect the skin from external factors such as bacteria, fungi, and other harmful substances.
Sebaceous glands are most numerous and active during puberty when hormonal changes lead to an increase in sebum production. Overactive sebaceous glands can cause various skin and hair-related problems such as acne, greasy skin, and oily hair. Conversely, underactive sebaceous glands can result in dry skin and hair.
Sebaceous glands are also important in maintaining the natural microbiome of the skin. The sebum produced by these glands contains antimicrobial peptides that help to protect the skin from invading pathogens and maintain the delicate balance of the skin flora.
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