30 Questions
Which of the following is the largest organ of the body by weight and volume?
Skin
What are the functions of the skin?
Protection, thermoregulation, and prevention of dehydration
What is the main function of the integument?
To protect internal tissues
What are the two distinct regions of the dermis?
Papillary dermis and reticular dermis
Which of the following is not an accessory structure of the dermis?
Epidermis
What is the function of Langerhans cells in the epidermis?
Immune response
Which layer of the epidermis is responsible for the production of melanin?
Stratum basale
What is the function of sebaceous glands in the skin?
Production of oil
Which of the following is not a sensation monitored by the skin?
Smell
What is the main function of the epidermis?
To serve as a barrier
Which type of glands are typically associated with hair follicles and secrete sebum into a hair follicle?
Sebaceous glands
What is the function of arrector pili muscles?
Stand the hair up in response to cold or fear
Where are eccrine sweat glands found?
Both thick and thin skin
Which cells help push secretory products into and along the lumen?
Myoepithelial cells
Which type of sweat glands have larger lumens compared to eccrine sweat glands?
Apocrine sweat glands
What is the name of the structure formed at the basal region of the hair follicle?
Hair bulb
Which part of the hair follicle contains capillaries and nerve fibers that supply the hair follicle?
Dermal papilla
What is the outermost layer of the hair shaft called?
Hair cuticle
Where is the eponychium located?
Junction zone between skin of the finger and nail plate
What is the function of the perionychium?
Protect the nail plate
Which layer of the epidermis is composed of flattened cells with keratohyalin granules in their cytoplasm?
Stratum granulosum
Which layer of the epidermis contains numerous flattened cells that are filled with keratin and lack organelles and nuclei?
Stratum corneum
Which layer of the epidermis is the deepest and composed of a single layer of cuboidal cells, including stem cells?
Stratum basale
Which layer of the epidermis is typically the thickest and consists of interconnected cells with numerous desmosomes?
Stratum spinosum
Which layer of the epidermis is responsible for producing melanin?
Stratum basale
Which layer of the epidermis contains sensory receptor cells that respond to light touch stimuli and for sensing an object's texture?
Stratum spinosum
Which layer of the skin is composed of loose connective tissue and is located deep to the epidermis?
Dermis
Which layer of the skin is responsible for preventing water loss and the entry of pathogens?
Stratum corneum
Which layer of the skin is located deep to the dermis and contains loose connective tissue, adipose tissue, nerves, and arteries?
Hypodermis
What is the function of Meissner corpuscles in the skin?
Responsible for discriminative touch
Test your knowledge of fundamental histology and cell biology with this quiz on the functions, structure, and composition of the skin. Learn about the distinct layers of the epidermis and their characteristics and functions. Differentiate between thick and thin skin epidermis.
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