Which statement correctly distinguishes Lanugo hair from Vellus hair?

Which statement correctly distinguishes Lanugo hair from Vellus hair?

• A. Lanugo is fine silky hair covering the body before birth; Vellus is short fine non-pigmented hair that replaces Lanugo.
• B. Lanugo is hair on the scalp; Vellus is body hair after puberty.
• C. Lanugo is pigmented hair; Vellus is colorless.
• D. Lanugo is coarse terminal hair; Vellus is fine.

Answer: (A)

Understanding how hair types differ by development stage and pigmentation is what this item is testing. Lanugo is the fine, silky hair that covers the fetus in the womb. It is typically shed before birth and is replaced by vellus hair. Vellus hair is the short, fine, non-pigmented hair that grows on the body after birth and often takes the place of lanugo. This makes the statement that lanugo covers the body before birth and is replaced by vellus hair afterward the best fit. The other descriptions mix up where these hairs appear, whether they are pigmented, or whether lanugo is coarse, which doesn’t align with how these hair types actually develop.

Understanding how hair types differ by development stage and pigmentation is what this item is testing. Lanugo is the fine, silky hair that covers the fetus in the womb. It is typically shed before birth and is replaced by vellus hair. Vellus hair is the short, fine, non-pigmented hair that grows on the body after birth and often takes the place of lanugo. This makes the statement that lanugo covers the body before birth and is replaced by vellus hair afterward the best fit. The other descriptions mix up where these hairs appear, whether they are pigmented, or whether lanugo is coarse, which doesn’t align with how these hair types actually develop.