Essentials of Human Anatomy and Physiology (Custom)
15th Edition
ISBN: 9781269752862
Author: Marieb
Publisher: PEARSON
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Chapter 4, Problem 7MC
Summary Introduction
Introduction:
A burn is cell death or damage, which occurs due to heat,
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Stage II of pressure ulcer characterizes by partial-thickness skin loss involving epidermis and possibly dermis.
a.
True
b.
False
DIRECTIONS: Match the letter of the description and/or function to the epidermal layer that defines it.
A. Outermost layer of dead keratinocytes that protect the skin
6. Stratum basale
B. Layer of skin composed of areolar and dense irregular connective tissues
7. Stratum spinosum
C. Layer of keratinocytes that undergo apoptosis via keratinization
8. Stratum granulosum
D. Single layer of active stem cells that undergo somatic cell division
9. Stratum lucidum
E. Layer of skin composed of adipose and areolar connective tissue
10. Stratum corneum
F. Layer of keratinocytes with intermediate filaments to resist tension
G. Layer of clear, flat, dead keratinocytes found only in thick skin
Answer the following questions.
What is keratin?
Describe the process of keratinization.
Identify the 2 layers of the dermis. Describe their locations and the specific type of connective tissue that they are made of.
In which layer are melanocytes located? What is their function?
Identify all accessory structures located within the dermis.
a) List the 2 types of sweat glands found in skin.
b) Explain the differences between the 2 types of sweat glands.
What type of tissue makes the ducts of the sweat glands?
What is the arrector pili muscle? What is its function?
Chapter 4 Solutions
Essentials of Human Anatomy and Physiology (Custom)
Ch. 4 - Select the one false statement about mucous and...Ch. 4 - More than one choice may apply. Which of the...Ch. 4 - Prob. 3MCCh. 4 - More than one choice may apply. Identify the...Ch. 4 - In investigating the cause of thinning hair, which...Ch. 4 - Which structure is not associated with a nail? a....Ch. 4 - Prob. 7MCCh. 4 - Which of the following is not a skin structure? a....Ch. 4 - 9. Match the structures of the right with their...Ch. 4 - Identify the three types of epithelial membranes,...
Ch. 4 - From what types of damage does the skin protect...Ch. 4 - Explain why we become tanned after sitting in the...Ch. 4 - Prob. 13SAECh. 4 - 14. Name two different categories of skin...Ch. 4 - How does the skin help to regulate body...Ch. 4 - Prob. 16SAECh. 4 - Prob. 17SAECh. 4 - Which skin cancer arises from the youngest...Ch. 4 - Why does hair turn gray?Ch. 4 - 20. Name three changes that occur in the skin as...Ch. 4 - Is a bald man really hairless? Explain.Ch. 4 - Prob. 22CAQCh. 4 - 25. Both newborn infants and aged individuals have...Ch. 4 - A woman who has habitually used a sunbed for the...Ch. 4 - Freds new cycling shorts have got special silicone...Ch. 4 - The water of a swimming pool is hypotonic to our...Ch. 4 - 29. Mr. Rossi, a fisherman in his late sixties,...Ch. 4 - Mr. Grayson is receiving a drug treatment...Ch. 4 - 31. Which type of injection would allow a drug to...Ch. 4 - Prob. 30CAQ
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- DIscuss: Layer/s of the skin Description Function Accessory structure/s Function 1. Epidermis 2. Dermisarrow_forwardYou are looking at a slide from a patients sole. Which of the following layers of the epidermis would be present in the sample from your patient's sole, but not if you had taken a sample from the skin at their ankle? : Stratum corneum Stratum basale Stratum lucidum Stratum papillum In the "ABCD" rule used while diagnosing melanoma, B stands for: : behavior of the lesion blueness of the lesion border of the lesion blood vessels in the lesionarrow_forwardWhich of the following statements relating to burns is false? a. it is tissue damage caused by extreme heat b. first-degree burns have damage only in the epidermis c. second-degree burns include damage in the upper dermal layer d. third-degree burns exhibit damage in the entire skin thickness e. None of the abovearrow_forward
- Identification of Skin Structures: 1. Epidermis Layers (from superficial to deep) Tissue type: Stratum Corneum Types of cells? Functions? Stratum Lucidum Types of cells? Only fouond where? Stratum Granulosum Types of cells? What do they produce? Stratum Spinosum Types of cells? What protective cells are found in this layer? Stratum Basale 3 types of cells? a. b. c. What processes occur here? 2. Dermis Layers Papillary layer Type of tissue? Sensory cell type found here? Reticular Layer Main tissue type? 2 gland types? a. b. Pressure receptor type? Blood vessels present or absent? Hair follicles and arrector pili present or absent? 3. Hypodermis (subcutaneous tissue under the skin) 2 tissue types: a. b. Blood vessels present or absent?arrow_forwardThe cuticle is a complex non-cellular layer secreted by the epidermis. It is the seat of complex processes and changes. Along this line, how are sclerotization and melanization of the integument influenced by the hemolymph? Elaborate.arrow_forwardObserve diagrams of skin from different body locations in Figure.Based on number of epithelial layers and skin accessory structures, determine if skin is from the axillary area, forearm, or sole of foot. 1. ____________________________________________ 2. ____________________________________________ 3. ____________________________________________arrow_forward
- The ability of the components of the integumentary system to respond to sttress or trauma is independent of nervous or endocrine system control A. True B. Falsearrow_forwardDescribe the different layers of the skin by providing the following informationarrow_forwardBriefly answer the following questions:1. Cells of the epidermis are derived from stem cells of the stratum basale. Describe how the cells change as they become integrated into the different layers of the epidermis.2. What structures are produced from keratinization of the epidermis?arrow_forward
- Label the following structures in the thick skin: epidermis, stratum basale stratum spinosum stratum granulosum stratum corneum dermis papillary layer papillary capillaries reticular layerarrow_forwardObserve and describe the changes of the skin during the following activities: 1. Playing games (e.g. Volleyball) in an open court on a sunny day.2. Prolonged stay inside a cold room.3. Hair in different parts of the body (head, axilla, limbs, and pubic)4. Hair of the head after drying up (shampooed or without shampoo).5. The nails of a baby and an elderlyarrow_forwardState one important function provided by the layer of epidermis indicated by the arrow: illerarrow_forward
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