MICROANATOMY

EPITHELIUM CONNECTIVE TISSUE SKIN

INTEGUMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Fingerprints are determined by ridges called:
A
keratin
B
melanin
C
dermal papillae
D
lunula
Explanation: 

Detailed explanation-1: -A person’s fingerprints are based on the patterns of skin ridges (called dermatoglyphs) on the pads of the fingers. These ridges are also present on the toes, the palms of the hands, and the soles of the feet.

Detailed explanation-2: -Dermal papillae are the protrusions of dermal connective tissue into the epidermal layer. Rete ridges are the extensions of epidermis into the dermal layer. This undulating pattern is more apparent in thick skin of the hands and palms. There is no clear line of distinction between the papillary and reticular dermis.

Detailed explanation-3: -Fingerprints are the pattern of the epidermal ridges on fingers. They consist of friction ridge units that can be characterised by patterns (arrangement of ridges) and minutiae (small specific details such as bifurcations and ridge endings).

There is 1 question to complete.