Which type of sweat gland is associated with body odor due to bacterial breakdown?

The apocrine glands are indeed the type of sweat glands associated with body odor due to the breakdown of sweat by bacteria. These glands are primarily found in areas such as the armpits and groin, and they produce a thicker, milky secretion that is rich in proteins and lipids. When this sweat is secreted onto the skin's surface, it serves as a food source for bacteria that normally reside on the skin. As the bacteria metabolize the sweat, they produce byproducts that can lead to the characteristic odors often associated with sweating.

In contrast, eccrine glands, which are more abundant throughout the body, secrete a more watery and less odorous sweat that plays a key role in thermoregulation. Sebaceous glands produce an oily substance called sebum to lubricate the skin and hair, and do not contribute directly to body odor. Ceruminous glands, found in the ear canal, produce earwax and are not related to sweat or body odor at all. Thus, the unique characteristics and locations of apocrine glands set them apart as the primary contributors to body odor through bacterial activity.