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WorksheetsHair Quiz #2 (11-17)
Total questions: 20
Worksheet time: 12mins
The hair shaft is composed of what important protein?
myosin
keratin
chitin
actin
This layer of hair is made of scales that overlap and point toward the distal tip:
medulla
cuticle
follicular tag
cortex
Human hairs generally have what two types of medulla?
continuous
fragmented
none
interrupted
All hair has the same basic structure.
True
False
A hair consists of two parts:
follicle and shaft
skin and papilla
gland and club
cuticle and cortex
A follicle is a club-shaped structure in the skin.
True
False
Hair is produced from the
follicle
shaft
At the end of the follicle is the __________, a network of blood vessels that supply nutrients to feed the hair and help it grow.
papilla
follicular tag
shaft
sebaceous gland
Which of the following is NOT true about the bulb of the follicle?
The bulb contains a sebaceous gland to secrete oil
The bulb contains erector muscles that cause hair to stand upright
The bulb has nerve cells to help respond to the environment
All of the choices are true about the bulb of the follicle.
The hair shaft is made up of four layers.
True
False
Which of the following is true about the cuticle of hair?
It is transparent
It is made of scales that overlap one another.
Its job is to protect the hair.
It can have different scale patterns depending on the type of mammal.
The cuticle is the largest part of the hair shaft.
True
False
Eumelanin gives color to
brown hair
black hair
blonde hair
red hair
Pheomelanin produces the color in
brown hair
black hair
blonde hair
red hair
Cortical fusi, small sacs of air, can be found in the medulla region of the hair and tend to be different shapes and sizes.
True
False
The medulla can be a hollow tube or filled with cells.
True
False
Forensic investigators classify hair into ___ different groups depending on the appearance of the medulla.
2
3
4
5
Most human hairs do not have a medulla pattern or is fragmented, however, a continuous pattern is frequently found in
Native American hair
African American hair
Asian hair
Caucasian har
What is the outermost layer of the hair shaft?
Medulla
Cortex
Cuticle
Keratin
