Fingerprints

Question 1

at how many weeks/years do fingerprints form?

Answer 1

At 20 weeks in Utero

Question 2

structure of skin

Answer 2

consist of 5 layers of epidermal layers and dermis

Question 3

where and how does secretion come

Answer 3

comes from your pores; found in the ridges of your palms and fingers

Question 4

what dos secretion consist of (list all 6)

Answer 4

amino acids, sebaceous glands, fatty lipids, oil glands and organic and in-organic materials

Question 5

What did Sir Francis Galton discover?

Answer 5

The reason behind the classification of fingerprints

Question 6

List all 4 types of fingerprints

Answer 6

1. Arch
   2.Tented Arch
2. Loop
3. Whorl

Question 7

temporary alterations to fingerprints?

Answer 7

paper cuts, warts
takes about 30 days to go back to normal

Question 8

permanent alteration?

Answer 8

scars, burns
anything that leaves a mark and breaches the basal layer

Question 9

what is puckering?

Answer 9

tissue that surrounds the area where the basal layer had been breached causing ridge misalignment

Question 10

higher tolerance vs lower tolerance?

Answer 10

higher - more to work with; easily identifiable
lower - harder to identify and make a match

Question 11

what happened in 1812?

Answer 11

first practical use of fingerprints in a crime justice system.

Question 12

can fingerprints be preserved?

Answer 12

yes, if their is optimal conditions

Question 13

top layer of skin?

Answer 13

stratum corneum
Top layer of skin (usually dead skin)

Question 14

skin layer closest to dermis?

Answer 14

Stratum basale. Permanent alterations come from damaging the basal layer.

Question 15

stratum lucid?

Answer 15

in between the top layer stratum corneum and stratum granulosum; clear and mean to seperate the two

Question 17

Stratum basale?

Answer 17

layer before the dermis; once affected it leads to permanent scars

Question 18

stratum lucidum

Answer 18

Clear layer inbetween the stratum cornelum and stratum granulosum.