The second degree burn involves: (select the appropriate response)

Question

BlackTom AI · Accepted Answer

Second-degree burns (partial-thickness burns) involve damage that extends into the dermal layer of the skin.

1) Relevant knowledge points and concepts
- The skin has three principal layers: epidermis (outer), dermis (middle), and subcutaneous tissue (deep).  
- Burn classification by depth: first-degree (superficial) affects only the epidermis; second-degree (partial-thickness) damages the epidermis and penetrates into the dermis; third-degree (full-thickness) destroys the epidermis and dermis and may extend into subcutaneous tissue, muscle, or nerves.  
- Clinical signs of second-degree burns include redness, blistering, moist appearance, and significant pain (because dermal nerve endings are still intact).

2) Step-by-step reasoning
- Compare each answer option to the definitions above.  
- "The epidermal layer only" corresponds to first-degree burns, not second-degree. Therefore this option is incorrect.  
- "Muscle and nerve" indicates destruction beyond dermis into deep tissues; that describes third-degree or deeper burns rather than second-degree. So this option is incorrect.  
- "The dermal layer" indicates involvement of the dermis. Since second-degree burns are defined by extension into the dermis (partial-thickness), this option matches the standard definition.

3) Intermediate steps / evidence
- Second-degree = epidermis + portion of dermis. Key distinguishing feature: involvement of dermis (hence blistering and pain).  
- Third-degree would show charring, dry leathery appearance and often little pain due to nerve destruction — not consistent with second-degree.

4) Why the correct answer is correct
- Because second-degree burns by definition extend into and damage the dermal layer (partial-thickness), the option “the dermal layer” correctly identifies the tissue involved.

5) Why other options are incorrect (brief)
- "The epidermal layer only": describes first-degree burns.  
- "Muscle and nerve": describes much deeper (third-degree or beyond) burns, not second-degree.

Conclusion: The correct answer is "the dermal layer," which matches the provided answer.

The second degree burn involves: (select the appropriate response) 单项选择题

类似问题

位置32的问题 What are the layers of skin, from superficial to deep?a. Epidermis, dermis, hypodermisb. Dermis, epidermis, hypodermisc. Hyperdermis, dermis, hypodermisd. Supradermis, intradermis, subdermis

For a tattoo to be permanent and not wash away, what layer of the skin must the ink be placed into?

Label the layers of the skin 1: A 2: B 3: C 4: D

What was the world's first widely adopted biodiversity policy?

The aim of the Paris Agreement is to ensure that the earth’s preindustrial temperature is not exceeded by more than º Celsius.

The IPCC's mission is to Blank ______.

Why have most international agreements for environmental protection been based on the honor system?

As was exhibited with the Montreal Protocol and the encouragement of reduced CFC production, trade can be an effective tool to compel compliance with international treaties.

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单