Quiz
Exam 1 Chapter 4 pt 2
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Questions in this quiz (20)
1In descriptions of the skin, the terms thick and thin refer to the relative thickness of the _____, not to the integument as a whole. Most of the body is covered by _____ skin
- AEpidermis; Thin skin
- BEpidermis; Thick skin
- CDermis; Thin Skin
- DDermis; Thick skin
2_____, found on the palms of the hands and soles of the feet, may be covered by 30 or more layers of keratinized cells.
- AThick Skin
- BThin Skin
- CDeep Skin
- DSuperficial Skin
3The stratum basale of the epidermis forms ___(B)___ that extend into the dermis, increasing the area of contact between the two regions.
- AEpidermal Ridges
- BDermal Ridges
- CEpidermal Edges
- DDermal Edges
4Projections from the dermis toward the epidermis, called ___(C)___ (singular, papilla; “nipple-shaped mound”), extend between adjacent ridges
- ADermal papillae
- BEpidermis Ridges
- CEpidermis
- DDermis
5SKIN COLOR: The color of the epidermis is due to a combination of: (Check all that apply)
- AThe dermal blood supply
- BThe thickness of the stratum corneum
- CCarotene
- DMelanin
- EKeratin
6Seen from the surface, the skin takes on a bluish coloration called _____
- ACyanosis
- BKeratosis
- CMelanosis
- DTroyosis
7The black, yellow-brown, or brown melanin forms in intracellular vesicles called _____.
- AMelanosomes
- BMelanocytes
- CMelaninism
- DKeratinosomes
8_____ pigments help prevent skin damage by absorbing ULTRAVIOLET (UV) RADIATION in sunlight.
- AMelanin
- BKeratin
- CMelanosomes
- DMelanocytes
9_____ respond to UV exposure by increasing their rates of mel- anin synthesis and transfer. As a product, tanning then occurs.
- AMelanocytes
- BCyanosis
- CKeratinocytes
- DDermal Papillae
10The superficial ___(A)___ consists of LOOSE CONNECTIVE TISSUE tissue. This region contains the CAPILLARIES supplying the epidermis and the NERVE AXONS of sensory neurons that monitor receptors in the papillary layer and the epidermis.
- APapillary layer
- BReticular Layer
- CBasale Layer
- DSurface Layer
11The ___(B)___ consists of fibers in an INTERWOVEN NETWORK of dense irregular connective tissue that surrounds blood vessels, HAIR FOLLICLES, nerves, SWEAT GLANDS, and SEBACEOUS GLANDS. The name of the layer derives from the interwoven arrangement of collagen fiber bundles in this region
- APapillary layer
- BReticular layer
- CBasale Layer
- DSurface Layer
12The ___(A)___ derives its name from the dermal papillae that project between the epidermal ridges
- APapillary Layer
- BReticular Layer
- CBasal Layer
- DSurface Layers
13The interwoven collagen fibers of the reticular layer: (Check all that apply)
- ARecoil repeatedly during normal movements
- BThe extensive array of elastic fibers enables the dermis to stretch and
- CProvide considerable tensile strength
- DProvide a degree of water resistance
14Skin wrinkles are due to:
- AAge
- BChange in hormone levels
- CUltraviolet radiation
- DSqueezing your skin too much
15The extensive distortion of the dermis that occurs over the abdomen during pregnancy or after a substantial weight gain often exceeds the elastic capabilities of the skin. Elastic and collagen fibers then break, and although the skin stretches, it does not recoil to its original size after delivery or a rigorous diet. The skin then wrinkles and creases, creating a network of [blank_start]stretch marks[blank_end]
- Astretch marks
16Collagen and elastic fibers have a tendency to organize themselves in a parallel pattern in certain areas of the body. These are _____ due to stress or a specific type of movement
- APattern of cleavage lines
- BWrinkles
- CStretch marks
- DScars
17What is this picture showing?
- APatterns of cleavage lines
- BScars
- CWrinkles
- DStretch marks
18There are about 5 million hairs on the human body, and 98 percent of them are on the general body surface, not the head. Hairs are nonliving structures that are formed in organs called _____.
- AHair Follicles
- BHair Bulb
- CHair Matrix
- DHair Papilla
19Is this an image of a Hair follicle which also contains a sebaceous gland?
- ATrue
- BFalse
20What protects the exposed tips of the fingers and toes to help limit distortion when the digits are subjected to mechanical stress—for example, in grasping objects or running
- ANails
- BHairs
- CTeeth
- DSkins
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- anatomy Quiz on Exam 1 Chapter 4 pt 2, created by troy walter on 22/02/2017.
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- troy walter
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- English
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