GEMP - Integumentary System
Integumentary System Introduction The integumentary system is a vital organ system that comprises the skin and its associated structures, including hair, nails, and exocrine glands. It serves multiple critical functions, including protection, thermoregulation, sensation, and metabolic processes, making it an essential area of study in the medical field. Key Concepts 1. Structure of the Skin...
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Time limit: 4 minutes
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Question 1
What is the primary function of the epidermis in the integumentary system?
Explanation
The epidermis is the outermost layer of the skin and provides a protective barrier against environmental damage.
Question 2
Which component of the dermis is primarily responsible for its elastic properties?
Explanation
Elastin is a key protein in the dermis that provides elasticity and flexibility to the skin.
Question 3
Which type of gland is primarily involved in the lubrication of the skin and hair?
Explanation
Sebaceous glands produce sebum, an oily substance that lubricates the skin and hair to prevent dryness.
Question 4
What role do Langerhans cells play in the integumentary system?
Explanation
Langerhans cells are specialized immune cells in the skin that help in the immune response by detecting foreign substances.
Question 5
First-degree burns primarily affect which layer of the skin?
Explanation
First-degree burns affect only the epidermis, causing redness and minor pain but no significant injury to deeper layers.
Question 6
Which of the following skin conditions is characterized by rapid skin cell growth?
Explanation
Psoriasis is an autoimmune disorder that leads to rapid skin cell turnover, resulting in thickened patches of skin.
Question 7
What is the primary metabolic function of the integumentary system when exposed to sunlight?
Explanation
The skin synthesizes vitamin D when exposed to sunlight, which is crucial for calcium absorption in the body.
Question 8
What is the deepest layer of the skin called?
Explanation
The hypodermis, or subcutaneous layer, is the deepest layer of the skin, primarily composed of adipose tissue.
Question 9
What essential role does hair play in the integumentary system?
Explanation
Hair serves to provide insulation and protection as well as enhance the sensation of touch through hair follicles embedded in the dermis.