Questions and Answers
Which of the following areas of the body has the thinnest skin?
What layer of the skin forms a watertight, protective seal for the body?
Epidermis
The dermis contains hair follicles, sweat glands, and nerve endings.
True
What do sebaceous glands produce?
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All of the following body structures are lined with mucous membranes, EXCEPT for the:
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Functions of the skin include all of the following, EXCEPT:
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Why may bleeding occur from even a minor injury during the normal wound healing process?
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What is a closed soft-tissue injury characterized by swelling and ecchymosis called?
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When does a hematoma develop?
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Compromised arterial blood flow leads to crush syndrome and can occur when an area of the body is trapped for longer than 4 hours.
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What is your main concern for a patient with a deformed and swollen arm after being trapped?
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Which of the following open soft-tissue injuries is limited to the superficial layer of the skin and results in the least amount of blood loss?
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External bleeding may be minimal but internal injuries can be extensive in penetrating injuries.
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What occurs during an abdominal evisceration?
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In addition to severe bleeding, what is the MOST life-threatening complication associated with an open neck injury?
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Burns are classified according to:
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Which of the following is of LEAST importance when initially assessing the severity of a burn?
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What does a partial-thickness burn involve?
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Severe burns are typically a combination of all degrees of burn.
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What must exist for electricity to flow through the body and cause damage?
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What should you do if a utility worker is electrocuted and is lying unconscious on the ground?
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Functions of dressings and bandages include all of the following, EXCEPT:
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What should you assess if a patient complains of numbness and tingling in their hand after a bandage application?
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Study Notes
Skin Anatomy and Functions
- The thinnest skin on the body is found on the ears.
- The epidermis creates a watertight seal that protects the body.
- The dermis is composed of hair follicles, sweat glands, and nerve endings.
- Sebaceous glands produce sebum, which waterproofs and keeps skin supple.
- Mucous membranes line most body structures except for the lips.
- Skin does not produce key antibodies, which is an exception among its various functions.
Wound Healing and Injury Types
- Minor wounds may bleed due to delicate new capillaries that take time to stabilize.
- A contusion is a closed soft-tissue injury marked by swelling and ecchymosis.
- Hematomas occur when large blood vessels beneath the skin are damaged.
- Crush syndrome results from compromised arterial blood flow and prolonged tissue compression, typically over 4 hours.
- Compartment syndrome is a crucial concern in cases of crushing injuries where signs include deformity, swelling, and absent pulses.
Soft-Tissue Injuries
- Abrasions are limited to the superficial layer of skin and lead to minimal blood loss.
- Penetrating injuries may have minimal external bleeding but can result in significant internal damage.
- Abdominal evisceration happens when organs protrude through an open wound.
- Open neck injuries pose the risk of air embolism, a life-threatening complication.
Burn Classification
- Burns are classified by depth and extent of tissue damage.
- Known drug allergies are least important when assessing the severity of a burn.
- Partial-thickness burns affect the outer skin layer and part of the dermis.
- Severe burns often involve a combination of all degrees of burning.
Electrical Injury Protocols
- For electricity to cause bodily harm, a complete circuit must exist between the electrical source and the ground.
- When dealing with an electrocution victim, ensure the power line is not live before assessing the patient.
Wound Management
- Dressings and bandages function primarily for wound protection but do not immobilize injuries.
- If proximal numbness or tingling occurs in a patient after bandaging, assess distal circulation and readjust the bandage as necessary.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on skin anatomy with these flashcards from Chapter 26. This quiz covers various aspects of the skin, including layers, functions, and structures such as hair follicles and sebaceous glands. Ideal for students studying human biology or dermatology.
