Skin Anatomy Flashcards - Chapter 26
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Questions and Answers

Which of the following areas of the body has the thinnest skin?

  • Ears (correct)
  • Palms
  • Feet
  • Back

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 (A)

What do sebaceous glands produce?

<p>Sebum</p> Signup and view all the answers

All of the following body structures are lined with mucous membranes, EXCEPT for the:

<p>Lips (B)</p> Signup and view all the answers

Functions of the skin include all of the following, EXCEPT:

<p>Production of key antibodies (A)</p> Signup and view all the answers

Why may bleeding occur from even a minor injury during the normal wound healing process?

<p>New capillaries are delicate.</p> Signup and view all the answers

What is a closed soft-tissue injury characterized by swelling and ecchymosis called?

<p>Contusion</p> Signup and view all the answers

When does a hematoma develop?

<p>When large blood vessels beneath the skin are damaged.</p> Signup and view all the answers

Compromised arterial blood flow leads to crush syndrome and can occur when an area of the body is trapped for longer than 4 hours.

<p>True (A)</p> Signup and view all the answers

What is your main concern for a patient with a deformed and swollen arm after being trapped?

<p>Compartment syndrome</p> Signup and view all the answers

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?

<p>Abrasion (A)</p> Signup and view all the answers

External bleeding may be minimal but internal injuries can be extensive in penetrating injuries.

<p>True (A)</p> Signup and view all the answers

What occurs during an abdominal evisceration?

<p>Organs protrude through an open wound.</p> Signup and view all the answers

In addition to severe bleeding, what is the MOST life-threatening complication associated with an open neck injury?

<p>Air embolism</p> Signup and view all the answers

Burns are classified according to:

<p>Depth and extent (A)</p> Signup and view all the answers

Which of the following is of LEAST importance when initially assessing the severity of a burn?

<p>Known drug allergies (A)</p> Signup and view all the answers

What does a partial-thickness burn involve?

<p>The outer layer of skin and a portion of the dermal layer.</p> Signup and view all the answers

Severe burns are typically a combination of all degrees of burn.

<p>True (A)</p> Signup and view all the answers

What must exist for electricity to flow through the body and cause damage?

<p>A complete circuit must exist between the electrical source and the ground.</p> Signup and view all the answers

What should you do if a utility worker is electrocuted and is lying unconscious on the ground?

<p>Rapidly assess the patient after ensuring that the power line is not live.</p> Signup and view all the answers

Functions of dressings and bandages include all of the following, EXCEPT:

<p>Immobilization of the injury (A)</p> Signup and view all the answers

What should you assess if a patient complains of numbness and tingling in their hand after a bandage application?

<p>Distal circulation</p> Signup and view all the answers

Flashcards

Epidermis

The outermost layer of skin that acts as a barrier to protect the body from the environment.

Dermis

The thicker inner layer of skin containing hair follicles, sweat glands, and nerve endings.

Sebum

An oily substance produced by sebaceous glands that helps to moisturize and protect the skin.

Mucous Membranes

Specialized membranes that line most internal body cavities and openings, providing protection and lubrication.

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Contusion

A closed injury where soft tissue is damaged without an open wound, characterized by swelling and bruising.

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Hematoma

A collection of blood that forms beneath the skin due to damage to large blood vessels.

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Crush Syndrome

A serious condition caused by prolonged tissue compression, leading to impaired blood flow and potential muscle damage.

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Compartment Syndrome

A condition where increased pressure within a muscle compartment restricts blood flow, often caused by trauma.

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Abrasion

A superficial wound where the top layer of skin is scraped or rubbed off.

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Penetrating Injury

A wound that penetrates the skin and may cause internal injuries.

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Abdominal Evisceration

A serious injury where internal organs protrude through an open wound in the abdomen.

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Open Neck Injury

A wound that affects the neck and can lead to a life-threatening air embolism.

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First-degree Burn

A burn that affects only the top layer of skin, causing redness and pain.

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Second-degree Burn

A burn that affects both the outer and inner skin layers, causing blistering and pain.

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Third-degree Burn

A burn that damages all layers of skin and may involve underlying tissues, resulting in charring and loss of sensation.

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Fourth-degree Burn

A burn that affects all layers of skin and often extends to muscles and bones, causing significant tissue damage.

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Electrical Circuit

For an electric shock to occur, a complete circuit must be created between the electrical source and the ground.

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Power Source Safety

Prior to assessing an electrocution victim, ensure the power source is de-energized to prevent further harm.

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Wound Dressings/Bandages

Dressings and bandages provide wound protection and prevent infection.

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Distal Circulation

Numbness or tingling sensations after bandaging can indicate compromised circulation, requiring bandage readjustment.

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Compartment Syndrome

A condition where a muscle compartment is subjected to excessive pressure, potentially leading to muscle damage and nerve injury.

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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.

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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.

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