Biology Flashcards
1
Q
What are the two different types of sweat glands?
A
Eccrine and Apourine
2
Q
What is the outer layer of skin called?
A
The epidermis
3
Q
Where is the skin the thinnest?
A
On the lips
4
Q
Where is skin the thickest?
A
On the scalp, palms, and soles of your feet.
5
Q
What is a fingerprint?
A
The system of ridges and furrows found on the fingertips
6
Q
What forms on a fetus around the 6th week?
A
Volar pads form
7
Q
What are volar pads?
A
bulges on the epidermal surface of fingers and palms
8
Q
What will a low volar pad form?
A
A small whorl or arch
9
Q
What will a large volar pad form?
A
A large whorl with a delta
10
Q
What are the 3 main types of fingerprints?
A
loop, whorl, arch
11
Q
When do ridges form in the fetus?
A
14 weeks
12
Q
When is friction ridge skin fully formed?
A
24 weeks
