Integumentary system Flashcards
(15 cards)
what is the largest organ of the body
The skin
What are the layers of the skin
epidermis, dermis, hypodermis
Is the epidermis vascular or avascular
Avascular
What are the 4 cell types in the epidermis
Keratinocytes, Melanocytes, Langerhan’s cells, Merkel cells
What is the deepest layer of the epidermis
Stratum basale
What is the outermost layer of the epidermis
Stratum corneum
Where is thick skin found
Palms, fingertips, soles
What type of tissue is the dermis made of
connective tissue
is the dermis vascular
yes
what are the layers of the dermis
papillary and reticular layers
is the hypodermis part of the skin
no
what does the hypodermis do
anchors skin, stores fat
what are the 6 main functions of the skin
protection, temp regulation, sensation, metabolism, blood reservoir, excretion, absorption
what happens to basal cell activity and langerhan cells as we age
basal: decreases activity
langerhan: decreases, reducing immune sensitivity.
what happens to vitamin d production as we age
decreases
