Northern Virginia Community College NSG 100
NSG 100 Exam 3 Exam
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,Functions of the Skin
1. protects underlying tissues from invasion by microorganisms and from trauma
2.nerves in skin enable the perception of touch, pain, pressure, heat and cold
3.assists in regulating temperature
4. supplements the body's intake of vitamin D by synthesizing this vitamin from UV light
epidermis
outermost layer of skin
-consists of epithelial cells and melanocytes
dermis
middle layer of skin
- thick layer composed mainly of connective tissue rich in collage and elastin
-stores water, regulates body temperature and production of vitamin D, cushions the
body, and supplies blood to epidermis
-this layer is richly supplied with blood cells, nerve fibers, and lymphatic vessels
-most hair follicles, sebaceous and sweat glands
subcutaneous layer
"hypodermis"
3rd layer of skin
composed of mainly adipose (fatty) tissues and collage-rich connective tissues
-separates muscle from skin, stores fat, and conserves body heat
, infectious skin disorders
Caused by bacterial, fungal, viral, or parasitic agents. Examples include impetigo
(bacterial), athlete's foot (fungal), chickenpox (viral), and lice (parasitic).
inflammatory skin disorders
Caused by pathologies such as acne, burns, eczema, dermatitis, and psoriasis. Examples
include atopic, seborrheic, and stasis dermatitis.
neoplastic skin disorder
Caused by skin cancers. Examples include squamous cell carcinoma, basal cell
carcinoma, and malignant melanoma. Melanoma is the most serious type of neoplasm
macules
freckles and flat moles, less than 1 cm wide
papule
palpable, circumscribed solid elevation of skin
NSG 100 Exam 3 Exam
Questions Verified and
Provided with A+
Graded Answers Latest
Updated 2026/2027
,Functions of the Skin
1. protects underlying tissues from invasion by microorganisms and from trauma
2.nerves in skin enable the perception of touch, pain, pressure, heat and cold
3.assists in regulating temperature
4. supplements the body's intake of vitamin D by synthesizing this vitamin from UV light
epidermis
outermost layer of skin
-consists of epithelial cells and melanocytes
dermis
middle layer of skin
- thick layer composed mainly of connective tissue rich in collage and elastin
-stores water, regulates body temperature and production of vitamin D, cushions the
body, and supplies blood to epidermis
-this layer is richly supplied with blood cells, nerve fibers, and lymphatic vessels
-most hair follicles, sebaceous and sweat glands
subcutaneous layer
"hypodermis"
3rd layer of skin
composed of mainly adipose (fatty) tissues and collage-rich connective tissues
-separates muscle from skin, stores fat, and conserves body heat
, infectious skin disorders
Caused by bacterial, fungal, viral, or parasitic agents. Examples include impetigo
(bacterial), athlete's foot (fungal), chickenpox (viral), and lice (parasitic).
inflammatory skin disorders
Caused by pathologies such as acne, burns, eczema, dermatitis, and psoriasis. Examples
include atopic, seborrheic, and stasis dermatitis.
neoplastic skin disorder
Caused by skin cancers. Examples include squamous cell carcinoma, basal cell
carcinoma, and malignant melanoma. Melanoma is the most serious type of neoplasm
macules
freckles and flat moles, less than 1 cm wide
papule
palpable, circumscribed solid elevation of skin
