Which type of hair is typically soft and fine, found on the fetus?

The type of hair that is typically soft and fine, and is found on the fetus, is known as lanugo. This fine, soft hair covers a developing fetus during gestation and is gradually shed before birth, often replaced by other types of hair as the child grows. Lanugo serves a purpose in utero, providing warmth and aiding in the regulation of body temperature for the fetus.

In contrast, vellus hair is soft, fine hair that covers most of the human body after birth, while terminal hair is thicker, darker, and more coarse, found on the scalp, eyebrows, and during puberty in areas like the underarms and genital region. The term "capilli" typically refers to hair on the head, particularly the scalp, and while it can describe terminal hair, it does not specifically relate to the fine, soft hair found on a developing fetus.