30 Questions
Which layer of the epidermis is found in the palms and soles of the feet?
Stratum corneum
What is the main purpose of dermaplaning?
To remove superficial facial hair and dead skin
What is the function of the dermal papillae in the dermis?
To provide elasticity to the skin through fine elastic fibers
Which of the following is NOT a function of the skin?
Skeletal movement
What is the main component of the Hypodermis layer?
Fat/Adipose tissue
Why is dermaplaning considered a relatively painless procedure?
Because the epidermis has very few nerve endings
What is the term for the process of decrease in collagen, elastin, and HA with age?
Ageing
What is the consequence of dermaplaning on the skin?
It increases blood flow to the dermis
What is the location of the stratum lucidum in the epidermis?
Between stratum granulosum and stratum corneum
Which of the following mechanoreceptors is responsible for detecting pressure?
Merkels Cells
What is the term for the first layer of skin that has no blood vessels and few nerve endings?
Epidermis
What is the mnemonic for the functions of skin, including Protection, Heat Regulation, and Absorption?
PHASES
What is the primary function of Keratinocytes in the epidermis?
Produce a water-repellent sealant for skin waterproofing
Which type of mechanoreceptor is responsible for detecting deep pressure?
Pacinian Corpuscle
What is the function of Melanocytes in the epidermis?
Produce melanin for skin pigmentation
What is the name of the layer of the epidermis that imparts strength and flexibility?
Stratum spinosum
What is the function of Meissner's Corpuscle?
Detect fine touch and vibration
What is the name of the layer of the epidermis that contains lamellar granules?
Stratum granulosum
What type of connective tissue is present in the deeper part of the dermis?
Dense irregular connective tissue
What is the function of the arrector pili muscle?
To generate heat when the body is cold
What is the outcome of lacking melanin production in the skin?
Albinism
What type of receptors are present in the papillary dermis?
Fine touch receptors
What is the function of sebaceous glands?
To secrete an oily substance called sebum
What is the pigment responsible for the yellow undertone of skin colour?
Carotene
What is the main function of sebum secreted by sebaceous glands?
To prevent excessive evaporation of water
Where are ceruminous glands typically found?
In the outer ear canal
What is the function of apocrine sweat glands?
To produce sweat in response to emotional stimuli
What is the main component of nails?
Hard, dead, keratinized epidermal cells
What is the result of fibroblasts decreasing in number during ageing?
A decrease in skin elasticity
What is the effect of Botox on sweat glands?
It reduces sweat production by blocking receptors
Test your knowledge of the skin's structure and functions, including the epidermis, dermis, and hypodermis, as well as the accessory structures like hair, nails, and glands. Learn about the skin's role in protection, temperature regulation, and vitamin D synthesis, and how it changes with aging.
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