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Intro To Applied Forensics > Chapter 10 > Flashcards

Chapter 10 Flashcards

1
Q

The scale structure covering the exterior of the hair

A

Cuticle

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2
Q

The main body of the hair shaft

A

Cortex

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3
Q

A cellular column running through the center of the hair

A

Medulla

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4
Q

Resembles paper cups

A

Coronal cuticle

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5
Q

Resembles petals and protrude from the shaft

A

Spinous cuticle

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6
Q

Flattened, overlapping scales

A

Imbricate cuticle

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7
Q

Measures the diameter of the medulla relative to the diameter of the hair shaft and is normally expressed as a fraction

A

Medullary index

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8
Q

The initial growth phase during which the hair follicle actively produces hair

A

Anagen phase

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9
Q

A transition stage between the anagen and telogen phases of hair growth

A

Catagen phase

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10
Q

The final growth phase in which hair naturally falls out of the skin

A

Telogen phase

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11
Q

A translucent piece of tissue surrounding the hair’s shaft near the root; contains the richest source of DNA associated with hair

A

Follicular tag

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12
Q

DNA present within the nucleus of a cell; this form of DNA is inherited from both parents

A

Nuclear DNA

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13
Q

DNA present in small structures (mitochondria) outside the nucleus of a cell; this form of DNA is inherited maternally

A

Mitochondrial DNA

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14
Q

A phenomenon consistent with hair from a deceased individual’s head

A

Root banding

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15
Q

Fibers derived entirely from animal or plant sources

A

Natural fibers

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16
Q

Fibers derived from either natural or synthetic polymers; the fibers are typically made by forcing the polymeric material through the holes of a spinneret

A

Manufactured fibers

17
Q

Two or more atoms held together by chemical bonds

A

Molecule

18
Q

A molecule with a high molecular mass

A

Macromolecule

19
Q

The basic unit of structure from which a polymer is constructed

A

Monomer

20
Q

A substance composed of a large number of atoms arranged in monomers

A

Polymer

21
Q

Fibers manufactured from natural raw materials

A

Regenerated fibers

22
Q

Fibers manufactured solely from synthetic chemicals

A

Synthetic fibers

Intro To Applied Forensics (12 decks)

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