Question

site 3: https://www.encyclopedia.com/sports-and-everyday-life/food-and-drink/food-and-cook analysis

1. what is the scientific study of hair called?
2. what are the three major types of hair analysis and what are they used for?
3. what is the main protein that makes up hair?
4. what is the medulla?
5. what is the cortex?
6. what is the cuticle?

Explanation:

1. Trichology is the scientific study of hair, encompassing its structure, function, diseases, and treatments.
2. Microscopic hair analysis examines hair structure for health - related info; chemical hair analysis detects substances like drugs or heavy metals; and DNA hair analysis is used for identification purposes.
3. Keratin is the main protein that makes up hair, providing strength and structure.
4. The medulla is the central core of the hair shaft, which may be continuous, interrupted, or absent depending on the hair type.
5. The cortex is the middle layer of the hair shaft, containing pigment granules that give hair its color and providing mechanical strength.
6. The cuticle is the outermost layer of the hair shaft, composed of overlapping scale - like cells that protect the inner layers of the hair.

Answer:

1. Trichology
2. Microscopic (examines structure for health info), Chemical (detects substances like drugs/heavy metals), DNA (used for identification)
3. Keratin
4. The central core of the hair shaft, which may be continuous, interrupted, or absent.
5. The middle layer of the hair shaft, containing pigment granules and providing mechanical strength.
6. The outermost layer of the hair shaft, composed of overlapping scale - like cells for protection.