Part 8 (integumentary) Flashcards
The main cell type in the skin is the _______.
keratinocyte
Which layers of the epidermis contain living cells?
stratum basale, stratum spinosum, stratum granulosom
From where do the cells of the epidermis obtain oxygen and nutrients?
diffusion from blood vessels in the dermis
What happens in a first degree burn?
the epidermis is damaged
What happens in a second degree burn?
the epidermis is destroyed, and the dermis is damaged
What happens in a third degree burn?
the epidermis and dermis are destroyed, and the hypodermis is damaged
What is the stratum corneum composed of?
dead cells called keratinocytes
Which layer of the epidermis is found only in thick skin?
stratum lucidum
Which layer of the epidermis appears to be “spiky”?
stratum spinsosum
When the stratum basal and stratum spinosum are combined, what is its name?
stratum germinativum
What are the two layers of the dermis?
papillary layer and reticular layer
Which receptor is found in the papillary layer and is responsible for light touch?
Meissner’s corpuscle
Which receptor is found in the reticular layer, and is responsible for deep touch?
Pacinian corpuscle
What are the two categories of cutaneous glands?
sebaceous (oil) glands and sweat glands
What type of gland produces sebum?
sebaceous gland
