Question

hair analysis webquest
site 1: https://archives.fbi.gov/archives/about - us/lab/forensic - science - communications/fsc/july2004/research/2004 03 research02.htm

1. label the diagram of a strand of hair:
2. label the diagram of hair in skin:

site 2:

1. how many hairs does the average person shed per day?

Explanation:

For the first diagram of a strand of hair, the main parts are cuticle (outer - protective layer), cortex (gives hair color and strength), and medulla (central core). For the second diagram of hair in skin, parts include hair shaft (visible part), hair follicle (where hair grows from), sebaceous gland (produces oil), and arrector pili muscle (causes hair to stand up). On average, a person sheds 50 - 100 hairs per day.

Answer:

1. For the strand - of - hair diagram: Cuticle, Cortex, Medulla.
2. For the hair - in - skin diagram: Hair Shaft, Hair Follicle, Sebaceous Gland, Arrector Pili Muscle.
3. The average person sheds 50 - 100 hairs per day.