Domanda del libro di testo
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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TOC.tableOfContents
- 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, 9780138201814Non è quello che usi tu?Cambia libro di testo
Capitolo 5, Problema L3.A3a
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?
Guida verificata passo dopo passo1
Step 1: Begin by identifying the key characteristics of the mole described in the problem. These include irregular borders, deep blue-black color, and uneven color distribution. These features are clinically significant and should raise concern.
Step 2: Recall the ABCDE criteria for evaluating moles, which are commonly used to assess potential melanoma. The criteria include: A - Asymmetry, B - Border irregularity, C - Color variation, D - Diameter greater than 6mm, and E - Evolving changes in size, shape, or color.
Step 3: Compare the mole's features to the ABCDE criteria. Irregular borders and uneven color distribution align with the 'B' and 'C' criteria, while the deep blue-black color may indicate abnormal pigmentation. These findings suggest the mole could be suspicious for melanoma.
Step 4: Consider the urgency of the situation. Melanoma is a type of skin cancer that can spread rapidly if not treated early. The described changes in the mole's appearance are concerning and warrant immediate medical evaluation.
Step 5: Recommend the next steps for Nguyen. Advise a biopsy or referral to a dermatologist for further examination and diagnostic testing to confirm whether the mole is malignant. Early detection and treatment are critical for improving outcomes.
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Melanoma
Melanoma is a type of skin cancer that develops from melanocytes, the cells responsible for producing melanin, which gives skin its color. It is known for its aggressive nature and potential to metastasize, making early detection crucial. The characteristics of moles, such as irregular borders and uneven color, are key indicators of melanoma, necessitating immediate medical evaluation.
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Percorso guidato
02:47
Map of the Lesson on Integumentary System
ABCDE Rule
The ABCDE rule is a guideline for identifying the warning signs of melanoma. It stands for Asymmetry, Border irregularity, Color variation, Diameter greater than 6mm, and Evolving changes. Each of these criteria helps in assessing moles for potential malignancy, and the presence of irregular borders and uneven color in Nguyen's mole raises significant concern for melanoma.
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Percorso guidato
02:52Octet Rule
Skin Examination
A skin examination is a thorough assessment of the skin to identify any abnormalities, such as moles or lesions that may indicate skin cancer. This process involves visual inspection and may include dermatoscopy for a more detailed view. In Nguyen's case, the examination reveals critical features that warrant immediate concern and further investigation to rule out malignancy.
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____Stratum spinosum
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