24 Questions
What is the function of the serous membranes?
To reduce friction between the layers and provide lubrication
What is the name of the serous membrane around each lung in the thoracic cavity?
Pleura
What is the epithelial composition of most mucous membranes?
Stratified squamous or simple columnar epithelium
What is the function of the synovial membranes?
To produce synovial fluid to reduce friction between articulating bones
What is the primary organ of the integumentary system?
Skin
What type of tissue forms the connective tissue layer of a serous membrane?
Fibrous connective tissue
What forms the superficial layer of epithelial cells in the cutaneous membrane?
Stratified squamous epithelium
What is the function of a serous membrane that lines body cavities?
Preventing friction between organs
Where does hair growth begin?
At the hair papilla at the base of the follicle
What is the role of eccrine sweat glands?
To produce a transparent, watery liquid called perspiration
What causes the odor associated with apocrine gland secretion?
The contamination and decomposition of the secretion by skin bacteria
Where is the mechanical strength of the skin located?
Dermis
What gives the skin its elasticity and ability to stretch and recoil?
Elastic fibers
What is the function of friction ridges on the skin?
Improve grip and sense textures
Which layer of the skin is filled with a dense network of interlacing fibers, mostly collagen fibers?
Dermis
Which layer lies deep to the dermis and forms a connection between the skin and underlying structures of the body?
Subcutaneous tissue
What is the primary function of melanin?
To protect tissues from harmful UV radiation
Which layer of the skin is responsible for producing the pigment melanin?
Stratum germinativum
What happens when the junction between the epidermal and dermal layers is weakened or destroyed?
Blisters may result
What substance provides cells in the outer layer of the skin with a horny, abrasion-resistant, and protective quality?
Keratin
Which layer of the skin is made up largely of connective tissue?
Dermis
Which type of skin cancer is the most serious?
Melanoma
What causes sebum to darken and form a blackhead?
Exposure to air
What is the cause of Kaposi sarcoma (KS)?
Human herpesvirus 8 (HHV8)
Test your knowledge of the skin's composition and layers with this quiz. Learn about the dermis, its connective tissue composition, and the mechanical strength it provides to the skin.
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