Deck 18: Hair

Question 1

Hair is an outgrowth of the epidermis.

Answer 1

True

Question 2

Follicles are the external layer of hair.

Answer 2

False

Question 3

Keratin is made of proteins.

Answer 3

True

Question 4

At any given time, about 25% of hair on the scalp is growing.

Question 5

The pigment that gives hair its color is keratin.

Question 6

The outermost layer of hair is known as the cuticle.

Question 7

The innermost layer of hair is the cortex.

Question 8

The middle layer of hair is the medulla.

Question 9

Animal hairs have more patterned scales than human hairs.

Question 10

Shed hair can be individualized to a person.

Question 11

Age of a person can be determined from hair.

Question 12

Gender of a person can be determined from hair.

Question 13

Analysis of hair might provide a history of drug use by a person.

Question 14

Which of the following is not a phase of hair growth?

A) anagen phase
B) catagen phase
C) oxygenation phase
D) telogen phase

Question 15

The section of the hair that contains sufficient nucleated cells to form genomic DNA analysis is

A) the root
B) the tip
C) the shaft
D) none, as hair does not provide DNA

Question 16

Which of the following are NOT a type of hair that animals possess?

A) guard
B) cuticle
C) fur
D) whiskers

Question 17

The shedding stage of the hair growth cycle is called the ______ stage.

A) atagen
B) anagen
C) telogen
D) catagen

Question 18

The ______ of animal hairs is generally wider than human hairs

A) cuticle
B) cortex
C) shaft
D) medulla

Question 19

Human hair medullas can be one of the continuous, intermittent, fragmented or _____.

A) absent
B) colored
C) in rows
D) box-like