the skin 2 Flashcards
1
Q
Where do langerhans cells originate from?
A
bone marrow
2
Q
Describe langerhans cells
A
- dendritic
- antigen presenting cells that survey microbiome of skin
3
Q
Where are meissner corpuscles located?
A
dermal papillae
4
Q
What is a basal cell carcinoma?
A
- borderine malignant tumour
- hair follicle origin
- related to sun exposure
5
Q
What do merkel cells do?
A
mediate tactile sensation/light touch
6
Q
What does the Pacinian corpuscle detect?
A
vibrations
7
Q
How can you recognise the Parcinian corpuscle on an image?
A
it’s got spirals kind of
8
Q
What is the basement membrane made of?
A
collagen type 4
9
Q
Which functions does the basement membrane have?
A
- resistance to shearing forces
- ties together dermis and epidermis
- control of epithelial-mesenchymal interactions
10
Q
What is the dermis made of?
A
- dense connective tissue
- collagen, elastin
11
Q
What epidermal appendages does the dermis contain?
A
- pilosebaceous units
- sweat glands
- apocrine glands
12
Q
What makes up the pilosebaceous unit?
A
- hair
- sebaceous glands
- smooth muscle/arrector pili muscles
13
Q
What 2 types of sweat glands are there?
A
- eccrine
- apocrine
14
Q
What is the most common skin tumour?
A
basal cell carcinoma
15
Q
What do eccrine sweat glands produce?
A
watery sweat
