CEA Nursing Practice Exam

Which type of sweat gland is concentrated in the palms of the hands and soles of the feet, playing a role in temperature regulation?

1. Sebaceous

2. Apocrine

3. Eccrine

4. Epidermis

The correct answer is: Eccrine

Eccrine sweat glands are the type primarily found in the palms of the hands and the soles of the feet. They are crucial for thermoregulation, as they secrete a watery fluid (sweat) directly onto the surface of the skin, helping to cool the body through evaporation. These glands are distributed widely across the body but are particularly concentrated in areas that require a greater ability to manage temperature and moisture levels. Their role in thermoregulation is vital, especially during exercise or exposure to heat. When the body temperature rises, eccrine glands become more active, producing sweat that evaporates and cools the skin. This function is essential for maintaining homeostasis and preventing overheating. Other types of glands, such as sebaceous and apocrine glands, differ in their locations and functions. Sebaceous glands are associated with hair follicles and produce oil (sebum) to lubricate the skin and hair, while apocrine glands are located in areas like the axilla (armpits) and genitals, becoming active typically during puberty and associated more with scent rather than temperature control. The epidermis, while essential as the outer layer of skin, does not play a direct role in sweating or temperature regulation.