Week 3 - Integumentary Flashcards
Which layer of the skin is responsible for binding skin to underlying structures and acting as a cushion?
a) Epidermis
b) Dermis
c) Subcutaneous tissue (Hypodermis)
c) Subcutaneous tissue (Hypodermis)
What is the primary function of the stratum corneum?
a) Produce melanin
b) Provide a barrier to protect underlying tissues
c) Sense touch
d) Produce keratin
b) Provide a barrier to protect underlying tissues
Which type of skin cancer is most likely to spread and requires wide excision?
a) Basal Cell Carcinoma (BCC)
b) Squamous Cell Carcinoma (SCC)
c) Melanoma
d) Keratosis
c) Melanoma
What is the role of dendritic cells in the epidermis?
a) Produce melanin
b) Sense touch
c) Ingest foreign substances and damaged cells
d) Provide strength and flexibility
c) Ingest foreign substances and damaged cells
What does the ABCD rule help identify in skin cancer?
a) Basal Cell Carcinoma
b) Squamous Cell Carcinoma
c) Melanoma
d) Sunburn
c) Melanoma
Which layer of the dermis contains sensory nerve endings and capillaries?
a) Papillary layer
b) Reticular layer
c) Epidermis
d) Subcutaneous tissue
a) Papillary layer
Which two types of cells are found in the stratum spinosum of the epidermis?
a) Keratinocytes
b) Melanocytes
c) Dendritic cells
d) Tactile (Merkel) cells
a) Keratinocytes
c) Dendritic cells
What is the main function of apocrine sweat glands?
a) Regulate body temperature
b) Produce sebum
c) Contribute to body odour
d) Provide moisture to nails
c) Contribute to body odour
Which skin marking is caused by extreme stretching that leads to dermal tears?
a) Friction ridges
b) Flexure lines
c) Striae
d) Blisters
c) Striae
How does the skin help in the synthesis of Vitamin D?
a) By producing sebum
b) By absorbing UV light
c) By excreting waste
d) By detecting sensation
b) By absorbing UV light
What is the main function of the stratum lucidum?
a) Sensory response
b) Additional barrier for palms and soles
c) Keratin production
d) Immune response
b) Additional barrier for palms and soles
Which type of melanin is responsible for reddish-yellow skin tones?
a) Eumelanin
b) Pheomelanin
c) Keratin
d) Collagen
b) Pheomelanin
What is the primary role of keratinocytes in the epidermis?
a) Produce melanin
b) Produce keratin
c) Sense touch
d) Ingest foreign substances
b) Produce keratin
In which layer of the epidermis does keratin production begin?
a) Stratum corneum
b) Stratum granulosum
c) Stratum spinosum
d) Stratum basal
b) Stratum granulosum
What is the main function of sebaceous glands?
a) Regulate body temperature
b) Produce sebum to keep skin moisturised
c) Provide sensory input
d) Produce sweat
b) Produce sebum to keep skin moisturised