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Chapter Assessment Lesson 3.2
Learning Key Terms and Concepts
Which type of protein, found in the outermost layer of the skin, adds structural strength to the skin?
What is the name of the receptors that transmit nerve signals containing information about the environment, including touch, pressure, vibration, pain, and temperature?
The skin is made up of which two layers?
A. epidermis and hypodermis
B. epidermis and dermis
C. hypodermis and dermis
D. dermis and underlying tissues
Which of the following are considered to be appendages of the skin?
A. sweat glands
B. hypoglands
C. hair
D. both A and C
E. all of the above
Collagen and elastic fibers make up the dense, fibrous connective tissue called _____.
True or False?
Keratin is primarily responsible for human skin color.
A. True
B. False
True or False?
The epidermis completely replaces itself every 25 to 45 days.
A. True
B. False
True or False?
The skin has two layers, the outer epidermis and the underlying dermis.
A. True
B. False
Instructions: For questions 22 through 31, write the letter of the integumentary system structure on your answer sheet next to the corresponding number.
lipocytes
hypodermis
sebaceous gland
arrector pili muscle
dermis
hair follicle
epidemis
sweat gland
hair shaft
nerve fibers
Explain the skin's function in regulating body temperature. Compare and contrast the ways in which the skin helps the body cool to the way it helps the body warm.
Explain to an imaginary person why his or her hair color and texture (straight, wavy, or curly) have developed as they have.
The skin is described as keratinizing stratified squamous epithelial tissue. Describe what each of these terms means in relationship to the structure and function of the skin. (You may need to refer to the discussion in chapter 2 on types of epithelial tissue.)
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