unit 5 : Podiatric Dermatology

Question 1

Define Dermatology

Answer 1

branch of medicine that deals with diseases related to skin, hair and nails

Question 2

what is the skin

Answer 2

membrane that encloses the body

Question 3

what are the 2 layers of the skin and what connects them

Answer 3

Epidermis and Dermis

they are joined by the Dermo-edpidermal junction

Question 4

which layer forms the top coat of the skin and how many cell layers does it have

Answer 4

Epidermis with 5 layers of cells

Question 5

what are the 2 main cell types of the Epidermis and how do they differ

Answer 5

Keratinocytes (protein cells)

Melanocytes (protection from UV radiation)

Question 6

which is thicker between the dermis and the epidermis and between the two where are most appendages (nerves and ateries for e.g) found

Answer 6

the dermis is 2-4mm thick

the dermis has most appandages

Question 7

what is the layer beneath the dermis called

Answer 7

hypodermis

Question 8

what type of tissue is found in then hypodermis

Answer 8

connective tissue

Question 9

find unlabelled skin diagram and label the following :
-Sweat gland
-blood vessels
-hypodermis
-dermis
-epidermis
-fat
-hair follicle

Answer 9

answer on notes

Question 10

what are the 6 functions of the skin

Answer 10

1.Prevent dehydration
2.protect from UV radiation damage
3.Protects from external agents
4.. regulates body temperature
5.Produce VitD
6.Process and send sensory information by nerves

Question 11

what type of history taking is applicable in dermatological tests

Answer 11

both focused and general history

Question 12

what 2 clinical examination do you perform for dermatological assessment

Answer 12

observe & touch/feel/palpate

Question 13

what are the 4 tests that we perform after conducting Hx taking and clinical examination (observe & touch/feel/palpate)

Answer 13

1. microbiology
2. histological
3. patch testing
4. blood tests

Question 14

define lesion

Answer 14

part of the skin that has abnormal growth or appearance compared to the skin around it

Question 15

when lesions are not deep we say they are ____

Answer 15

Superficial

Question 16

list 8 types of skin lesions

Answer 16

1.Bullae (large clear blister)
2.macule (flat discolourisation)
3.papule (raised area)
4.nodule (1cm» growth/lump)
5.Plaque (raised red patches)
6.pustule (small white blister-like sores)
7. Vesicle (small fluid filled blister)
8.Scar (permanent fibrotic skin change)