교과서 질문
Explain what happens to dermal blood vessels when heat needs to be conserved (i.e., due to a cold environment).
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Ch. 5 The Integumentary System
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814당신이 사용하는 게 아니라요?교과서 변경
5장, 문제 L3.A1
The disease pemphigus vulgaris involves a patient's own immune system attacking the desmosomes between the epithelial cells of the skin. What changes would you expect to see with this disease?
검증된 단계별 안내1
Understand the role of desmosomes: Desmosomes are specialized structures that provide strong adhesion between epithelial cells, maintaining the integrity of the skin and preventing it from tearing under stress.
Recognize the impact of autoimmune attack: In pemphigus vulgaris, the immune system produces antibodies that target desmosomes, disrupting their function and weakening cell-to-cell adhesion.
Consider the physiological consequences: With desmosomes compromised, epithelial cells lose their ability to stay tightly connected, leading to separation of skin layers (acantholysis). This results in blister formation and skin fragility.
Identify symptoms: Patients with pemphigus vulgaris often experience painful blisters, erosions, and open sores on the skin and mucous membranes due to the loss of structural integrity.
Relate to clinical outcomes: The disease can lead to increased risk of infection, dehydration, and difficulty in healing, as the protective barrier of the skin is compromised.
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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
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주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Pemphigus Vulgaris
Pemphigus vulgaris is an autoimmune disorder characterized by the formation of blisters on the skin and mucous membranes. The immune system mistakenly targets desmosomes, which are structures that help cells adhere to one another, leading to the separation of skin layers and the development of painful lesions.
Desmosomes
Desmosomes are specialized cell structures that provide adhesion between epithelial cells, maintaining the integrity of tissues. They are crucial for skin stability, and their disruption in pemphigus vulgaris results in the loss of cell-to-cell adhesion, causing the skin to become fragile and blister easily.
추천 영상:
03:17
The Epidermis: Cells Example 1
Autoimmune Response
An autoimmune response occurs when the body's immune system mistakenly attacks its own tissues. In pemphigus vulgaris, autoantibodies target proteins in desmosomes, leading to inflammation and damage to the skin, which manifests as blisters and erosions.
추천 영상:
9:59Steps of the Interferon Response
관련 실천
교과서 질문
Would a mild second-degree burn be likely to heal by regeneration or fibrosis? Would the same type of healing take place in a third-degree burn that involved muscle tissue? Why or why not?
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교과서 질문
Many antiaging skin creams contain collagen and hyaluronic acid. Manufacturers claim that the collagen and hyaluronic acid applied to the surface of the skin will be absorbed into the dermis, where they will be incorporated into dermal tissue.
Predict whether or not these substances are likely to be absorbed by the epidermis.
659
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교과서 질문
Many antiaging skin creams contain collagen and hyaluronic acid. Manufacturers claim that the collagen and hyaluronic acid applied to the surface of the skin will be absorbed into the dermis, where they will be incorporated into dermal tissue.
Predict the effectiveness of the creams.
633
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교과서 질문
Nguyen comes to your clinic with a mole that has recently changed in appearance. You examine the mole and note that its borders are irregular, it has a deep blue-black color, and the color is unevenly distributed throughout the mole.
Nguyen tells you that she has used a tanning booth once per week for the past several years and that the tanning salon advertises it as safe. What do you tell her about the tanning salon's claim? How does any UV exposure affect keratinocytes and melanocytes? Explain.
705
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교과서 질문
Nguyen comes to your clinic with a mole that has recently changed in appearance. You examine the mole and note that its borders are irregular, it has a deep blue-black color, and the color is unevenly distributed throughout the mole.
What is your immediate concern? Why?
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