Skin Structure and Function Quiz

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What is the largest organ of the body?

Skin (correct)

Kidney

Liver

Heart

Which cells produce keratin to form the superficial layer of the epidermis?

Fibroblasts

Keratinocytes (correct)

Langerhans cells

Melanocytes

What regulates skin blood flow?

Parasympathetic nervous system

Central nervous system

Sympathetic nervous system (correct)

Endocrine system

What leads to gray and thinner hair in older adults?

Loss of melanocytes and hair follicles Signup and view all the answers

Which layer of the skin contains macrophages, fibroblasts, and fat cells?

Subcutaneous layer Signup and view all the answers

What is the primary function of the dermal appendages?

Regulate body temperature Signup and view all the answers

What happens to the skin of older adults in terms of permeability?

It becomes more permeable Signup and view all the answers

What is the composition of the dermis?

Connective tissue elements and hair follicles Signup and view all the answers

What leads to thinner and drier older skin?

Fewer capillary loops Signup and view all the answers

Which cells are found in the underlying epidermis?

Melanocytes Signup and view all the answers

What is the role of papillary capillaries in the skin?

Heat loss and heat conservation Signup and view all the answers

What happens to sweating in older adults?

It decreases Signup and view all the answers

Which skin disorder involves scaly, yellowish, inflammatory plaques and may be associated with Malassezia yeasts, immunosuppression, and epidermal hyperproliferation?

Seborrheic dermatitis Signup and view all the answers

Which skin disorder is a chronic autoimmune T-cell-mediated inflammatory disease characterized by scaly, erythematous pruritic plaques?

Psoriasis Signup and view all the answers

Which skin disorder involves oval lesions with scales around the edges located along skin lines of the trunk?

Pityriasis rosea Signup and view all the answers

Which skin disorder is a chronic, inflammatory, recurring scarring disease involving areas of skin where there are folds, hair follicles, and sweat glands?

Hidradenitis suppurativa Signup and view all the answers

Which skin disorder involves inflammation with erythema, edema, papules, pustules, and telangiectasia that develops on the middle third of the face?

Acne rosacea Signup and view all the answers

Which skin disorder is an inflammation of the pilosebaceous follicles with hypertrophy of sebaceous glands and telangiectasia, particularly of the nose?

Acne vulgaris Signup and view all the answers

Which skin disorder is an inflammation of the skin without involvement of mucous membranes, often associated with HSV or other infections?

Erythema multiforme minor Signup and view all the answers

Which skin disorder involves chronic autoimmune blistering that begins in the mouth or on the scalp and spreads to other parts of the body?

Pemphigus vulgaris Signup and view all the answers

Which skin disorder is an autoimmune disease that affects only the skin, usually occurring in sun-exposed areas with a butterfly distribution over the nose and cheeks?

Cutaneous lupus erythematosus Signup and view all the answers

Which skin disorder is a benign autoimmune blistering disease that resolves rapidly?

Bullous pemphigoid Signup and view all the answers

Which skin disorder is a bacterial infection of the hair follicle?

Folliculitis Signup and view all the answers

What skin disorder is a chronic, inflammatory, recurring scarring disease involving areas of skin where there are folds, hair follicles, and sweat glands?

Erysipelas Signup and view all the answers

What skin disorder involves inflammation of the pilosebaceous follicles with hypertrophy of sebaceous glands and telangiectasia, particularly of the nose?

Carbuncle Signup and view all the answers

What skin disorder involves inflammation with erythema, edema, papules, pustules, and telangiectasia that develops on the middle third of the face?

Erysipelas Signup and view all the answers

What skin disorder involves oval lesions with scales around the edges located along skin lines of the trunk?

Tinea skin infections Signup and view all the answers

What skin disorder is a benign, rough, elevated lesion caused by papillomavirus?

Tinea skin infections Signup and view all the answers

Which virus causes cold sores but can infect the cornea, mouth, and labia?

HSV-1 Signup and view all the answers

Which skin infection is caused by Staphylococcus or Streptococcus and is more common in children?

Impetigo Signup and view all the answers

Which skin disorder is a yeastlike fungal infection caused by C. albicans occurring on skin, on mucous membranes, and in the gastrointestinal tract?

Candidiasis Signup and view all the answers

What skin disorder is an immune-mediated inflammation of small skin blood vessels with purpura, ischemia, and necrosis resulting from disruption of the vessel wall?

Cutaneous vasculitis Signup and view all the answers

What skin disorder is a chronic autoimmune blistering disease that begins in the mouth or on the scalp and spreads to other parts of the body?

Pemphigus vulgaris Signup and view all the answers

What skin disorder is an inflammation of the skin without involvement of mucous membranes, often associated with HSV or other infections?

Cellulitis Signup and view all the answers

Which skin disorder is a benign proliferation of squamous cells that produces elevated, smooth, or warty lesions, usually in sun-damaged skin?

Seborrheic keratosis Signup and view all the answers

What skin disorder arises from hair follicles on sun-exposed areas and results in a dome-shaped, crusty lesion filled with keratin that resolves in 3 to 4 months?

Keratoacanthoma Signup and view all the answers

Which skin disorder is a pigmented scaly lesion that may become malignant in the form of squamous cell carcinoma and develops in sun-exposed individuals with fair skin?

Actinic keratosis Signup and view all the answers

What skin disorder is a malignant tumor that arises from melanocytes and may lead to metastasis through the lymph nodes if not excised early?

Cutaneous melanoma Signup and view all the answers

Which skin disorder is an immune-mediated sclerosis of the skin that may be localized or systemic, affecting muscle, bone, and other body organs?

Scleroderma Signup and view all the answers

What skin disorder is associated with type I hypersensitivity responses and appears as wheals, welts, or hives?

Urticarial lesions Signup and view all the answers

Which skin disorder is the most common skin cancer, occurring most often on sun-exposed areas, and has different subtypes and morphologic presentations?

Basal cell carcinoma Signup and view all the answers

What skin disorder is a tumor of the epidermis with uncontrolled growth of keratinocytes associated with sun exposure and can be localized (in situ) or invasive?

Squamous cell carcinoma Signup and view all the answers

Skin Structure and Function Quiz

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Questions and Answers

What is the largest organ of the body?

Which cells produce keratin to form the superficial layer of the epidermis?

What regulates skin blood flow?

What leads to gray and thinner hair in older adults?

Which layer of the skin contains macrophages, fibroblasts, and fat cells?

What is the primary function of the dermal appendages?

What happens to the skin of older adults in terms of permeability?

What is the composition of the dermis?

What leads to thinner and drier older skin?

Which cells are found in the underlying epidermis?

What is the role of papillary capillaries in the skin?

What happens to sweating in older adults?

Which skin disorder involves scaly, yellowish, inflammatory plaques and may be associated with Malassezia yeasts, immunosuppression, and epidermal hyperproliferation?

Which skin disorder is a chronic autoimmune T-cell-mediated inflammatory disease characterized by scaly, erythematous pruritic plaques?

Which skin disorder involves oval lesions with scales around the edges located along skin lines of the trunk?

Which skin disorder is a chronic, inflammatory, recurring scarring disease involving areas of skin where there are folds, hair follicles, and sweat glands?

Which skin disorder involves inflammation with erythema, edema, papules, pustules, and telangiectasia that develops on the middle third of the face?

Which skin disorder is an inflammation of the pilosebaceous follicles with hypertrophy of sebaceous glands and telangiectasia, particularly of the nose?

Which skin disorder is an inflammation of the skin without involvement of mucous membranes, often associated with HSV or other infections?

Which skin disorder involves chronic autoimmune blistering that begins in the mouth or on the scalp and spreads to other parts of the body?

Which skin disorder is an autoimmune disease that affects only the skin, usually occurring in sun-exposed areas with a butterfly distribution over the nose and cheeks?

Which skin disorder is a benign autoimmune blistering disease that resolves rapidly?

Which skin disorder is a bacterial infection of the hair follicle?

What skin disorder is a chronic, inflammatory, recurring scarring disease involving areas of skin where there are folds, hair follicles, and sweat glands?

What skin disorder involves inflammation of the pilosebaceous follicles with hypertrophy of sebaceous glands and telangiectasia, particularly of the nose?

What skin disorder involves inflammation with erythema, edema, papules, pustules, and telangiectasia that develops on the middle third of the face?

What skin disorder involves oval lesions with scales around the edges located along skin lines of the trunk?

What skin disorder is a benign, rough, elevated lesion caused by papillomavirus?

Which virus causes cold sores but can infect the cornea, mouth, and labia?

Which skin infection is caused by Staphylococcus or Streptococcus and is more common in children?

Which skin disorder is a yeastlike fungal infection caused by C. albicans occurring on skin, on mucous membranes, and in the gastrointestinal tract?

What skin disorder is an immune-mediated inflammation of small skin blood vessels with purpura, ischemia, and necrosis resulting from disruption of the vessel wall?

What skin disorder is a chronic autoimmune blistering disease that begins in the mouth or on the scalp and spreads to other parts of the body?

What skin disorder is an inflammation of the skin without involvement of mucous membranes, often associated with HSV or other infections?

Which skin disorder is a benign proliferation of squamous cells that produces elevated, smooth, or warty lesions, usually in sun-damaged skin?

What skin disorder arises from hair follicles on sun-exposed areas and results in a dome-shaped, crusty lesion filled with keratin that resolves in 3 to 4 months?

Which skin disorder is a pigmented scaly lesion that may become malignant in the form of squamous cell carcinoma and develops in sun-exposed individuals with fair skin?

What skin disorder is a malignant tumor that arises from melanocytes and may lead to metastasis through the lymph nodes if not excised early?

Which skin disorder is an immune-mediated sclerosis of the skin that may be localized or systemic, affecting muscle, bone, and other body organs?

What skin disorder is associated with type I hypersensitivity responses and appears as wheals, welts, or hives?

Which skin disorder is the most common skin cancer, occurring most often on sun-exposed areas, and has different subtypes and morphologic presentations?

What skin disorder is a tumor of the epidermis with uncontrolled growth of keratinocytes associated with sun exposure and can be localized (in situ) or invasive?

Which skin disorder is an endothelial cell vascular malignancy associated with immunodeficiency states and herpesvirus 8?

What skin disorder is a fungal infection of the nail plate?

Which skin disorder is a bacterial infection of the hair follicle?

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