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L7: HAIR, FIBRES, GLASS AND PAINT EVIDENCE

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

hair is mainly comprised of?

Back (Answer)

keratin

#2
Front (Question)

how much does hair grow per month?

Back (Answer)

1cm

#3
Front (Question)

Hair fibres grow in what pattern?

Back (Answer)

cyclic growth pattern

#4
Front (Question)

whats 1000 days of growth and whats 100 days fo rest?

Back (Answer)

1000 - anagen 100 - telegen

#5
Front (Question)

whats the intermediate period in hair called?

Back (Answer)

catagen

#6
Front (Question)

what percent is anagen?

Back (Answer)

80-90% anagen

#7
Front (Question)

what percent tis telegen?

Back (Answer)

10-18% telegen

#8
Front (Question)

what are naturally shed hairs ?

Back (Answer)

mainly telegen undamaged hair root

#9
Front (Question)

anagen has a _____ root.

Back (Answer)

damaged

#10
Front (Question)

outer shaft of hair is ___

Back (Answer)

cuticle

#11
Front (Question)

main body of hair ____

Back (Answer)

cortex

#12
Front (Question)

core of the fibre is ____

Back (Answer)

medulla

#13
Front (Question)

hair diameter is between?

Back (Answer)

approximately 40 - 100 mm

#14
Front (Question)

what are the key characteristics of hair?

Back (Answer)

Length, shape, size, colour, stiffness, curliness

#15
Front (Question)

European hair is known as?

Back (Answer)

caucasoid

#16
Front (Question)

features of caucasoid hair are?

Back (Answer)

• Fine to medium coarseness • Straight or wavy • Oval to circular hair shaft • Even pigmentation (medium – fine)

#17
Front (Question)

Asian hair is known as

Back (Answer)

Mongoloid

#18
Front (Question)

features of Mongoloid hair?

Back (Answer)

• Coarse and straight with large diameter • Circular cross-section • Large pigment granules; reddish

#19
Front (Question)

African hair is known as?

Back (Answer)

negroid

#20
Front (Question)

features of negroid hair?

Back (Answer)

Kinks and curls, flattened cross- section Largest pigmentation granules Opaque fibre

#21
Front (Question)

do hairs have a lot of individualising features?

Back (Answer)

no

#22
Front (Question)

do FBI to hair analyses?

Back (Answer)

no

#23
Front (Question)

what difficult with hair analysis ?

Back (Answer)

• Variation between hairs from the same source • Quality (length of hair) • Time difference • Experience of forensic examiner

#24
Front (Question)

There are ___ natural and synthetic fibres

Back (Answer)

countless