30 Questions
What are the two layers of the dermis?
Papillary and Reticular
Which cells are found in the dermis?
Fibroblasts, macrophages, and occasionally mast cells and white blood cells
What is responsible for the formation of 'goose bumps' on the skin?
Arrector pili
Where do hair follicles originate?
Epidermis
What is the function of the nail matrix?
Hair growth
What is the protective cover for the distal, dorsal surface of fingers and toes?
Nails
What are the four or five distinct layers of the epidermis in human skin?
Stratum basale, Stratum spinosum, Stratum granulosum, Stratum lucidum (only in thick skin), Stratum corneum
Which cell types are found in the epidermis?
Keratinocytes, Melanocytes, Dendritic (Langerhans) cells, Tactile (Merkel) cells
What is the role of melanocytes in skin pigmentation?
Melanocytes produce melanin pigments, determining the color of the skin.
What skin condition results in depigmentation and lighter colored patches of skin?
Vitiligo
What is albinism?
Albinism is a genetic disorder that affects the coloring of skin, hair, and eyes, resulting in partial or complete lack of pigment.
What are the two distinct regions that make up the skin?
Epidermis and Dermis
What are the two components of the dermis?
Papillary layer and Reticular layer
Which layer of the skin is not part of the skin but shares some functions with it?
Hypodermis
How many layers does the epidermis of thick skin have?
Five layers
What type of epithelium is the epidermis composed of?
Keratinized stratified squamous epithelium
What is the main function of the hypodermis?
Absorbs shock and insulates
Which layer of the skin anchors the skin to underlying structures?
Hypodermis
What are sebaceous glands responsible for?
Oil glands that help with lubrication.
Describe the function of eccrine sweat glands.
Produces hypotonic sweat for thermoregulation.
What is the main function of Meissner's Corpuscles?
Responds to light touch.
Explain the role of dendritic cells in the integumentary system.
Biological barrier.
What is the main characteristic of melanoma?
Uncontrolled growth of melanocytes.
Where is basal cell carcinoma frequently found?
Head, neck, arms, and back.
What are the ABCDE rules used for in relation to skin cancer?
To identify signs of early melanoma
What additional signs are cited for nodular melanoma?
Elevated, firm, growing
What common skin disorder presents as a red, flaky rash?
Eczema
What is the result of over-productive sebaceous glands?
Acne
What are the characteristics of partial-thickness burns classified as first degree?
Epidermal damage only, localized redness, edema, and pain
What is the 'rule of nines' used for in relation to burns?
Calculating the size of a burn to guide treatment decisions
Test your knowledge on the structure of the human skin, including the dermis layers, types of cells present, and factors affecting skin color. Learn about the functions of different cells in the dermis and understand how genetic and physiological factors contribute to skin color variations.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
