Questions and Answers
Why does your skin remain red after a bad sunburn?
Inflammation causes increased blood flow.
Why would a third-degree burn be less painful than a first- or second-degree burn involving the same body area?
Destruction of underlying pain receptors.
Which layer is composed primarily of dense irregular connective tissue?
C
Layer B is composed primarily of __________.
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Which of these is NOT a function of the layer at D?
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What is the function of the secretion from A?
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Which structure is a type of sweat gland?
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The skin is permeable to organic solvents, such as acetone or turpentine, because they ________.
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The source of the fluid that accumulates in a blister is________.
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During cold weather, blood vessels located in the dermis undergo vasoconstriction restricting blood flow into the skin. This produces additional body heat by routing blood to what effector organ?
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A Caucasian patient with pale skin is treated for low blood pressure with medication that elevates the blood pressure; however, the skin's pallor does not change. Which of the following is the most likely cause of the pallor in this patient?
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If a large number of whiteheads appear on the skin of the forehead, which of the following would result?
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Study Notes
Skin Responses and Conditions
- Redness after a sunburn is due to inflammation, which increases blood flow to the affected area.
- Third-degree burns may be less painful than first- or second-degree burns because they destroy underlying pain receptors.
Skin Layers
- The layer primarily composed of dense irregular connective tissue is referred to as layer C.
- Layer B consists mainly of areolar connective tissue.
Layer Functions
- The layer at position D does not supply cells to replace those lost from the epidermis.
- Secretion from structure A serves to lubricate hair and prevent infections.
Sweat Glands
- Structure C is identified as an eccrine sweat gland, which is the most common type of sweat gland.
Art-Labeling Summary
- For Figure 5.1, the hierarchy from highest to lowest is: hair shaft, sweat gland, arrector pili muscle, sebaceous gland, sensory nerve fiber, lamellar corpuscle, hair follicle.
- For Figure 5.2, skin layers ranked from highest to lowest include: stratum corneum, stratum granulosum, stratum spinosum, stratum basale.
Skin Permeability
- The skin can absorb organic solvents such as acetone due to their ability to dissolve lipid bilayers in epidermal and dermal cell membranes.
Blister Formation
- Fluids in blisters originate from blood plasma circulating through numerous dermal blood vessels.
Body Temperature Regulation
- During cold weather, vasoconstriction of dermal blood vessels restricts skin blood flow and directs blood to skeletal muscle, generating additional body heat.
Skin Color Changes
- In a Caucasian patient with pale skin, persistent pallor despite blood pressure medication is likely caused by anemia.
Acne and Skin Conditions
- The appearance of numerous whiteheads on the forehead results in multiple skin conditions, likely indicating a more extensive issue.
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Description
Test your knowledge on Chapter 5 of Anatomy & Physiology with these flashcards. Covering topics such as skin conditions, burns, and tissue layers, this quiz will enhance your understanding of crucial concepts in human anatomy. Perfect for students seeking to master the material!
