Hair & Scalp SciencesCâu 58 / 100
The three main layers of the hair shaft from outside to inside are:
a.Bulb, papilla, follicle
b.Epidermis, dermis, subcutis
c.Root, shaft, tip
d.Cuticle, cortex, medulla
Giải thích
The outer cuticle protects the strand, the middle cortex gives strength, elasticity, and holds pigment, and the innermost medulla is the core. Most chemical services act on the cuticle and cortex.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The technical term for the study of hair is:
- The part of the hair that projects above the surface of the skin is the:
- Which layer of the hair contains the pigment (melanin) that gives hair its color?
- The small, cone-shaped structure at the base of the follicle that supplies nourishment for hair growth is the:
- The active growing phase of the hair growth cycle is called:
- The chief protein of which hair is composed is:
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