Name:     ID: 
 
Email: 

Anatomy and Physiology Integumentary Worksheets

Matching
 
 
Hypodermis
a.
Fibroblasts, adipose cells, and macrophages
b.
Loose connective tissue
 

 1. 

The type of tissue found in the hypodermis.
 

 2. 

The main types of cells within the hypodermis.
 
 
Skin
a.
Dermis
b.
Epidermis
 

 3. 

Connective tissue
 

 4. 

Layer of epithelial tissue.
 

 5. 

Most superficial layer of the skin.
 
 
Dermis
a.
Cleavage lines
d.
Reticular layer
b.
Papillae
e.
Striae
c.
Papillary layer
 

 6. 

Deep layer of dermis; dense, irregular connective tissue that blends into the hypodermis.
 

 7. 

Lines visible through the epidermis produced by rupture of the dermis.
 

 8. 

Projections from the dermis toward the epidermis.
 
 
Epidermis                                                                                  Part A
a.
Desquamate
d.
Langerhans cells
b.
Keratinization
e.
Melanocytes
c.
Keratinocytes
f.
Strata
 

 9. 

Cells tha produce a protein called keratin; the most abundant epidermal cell.
 

 10. 

Cells in the epidermis that are part of the immune system.
 

 11. 

To slough or be lost from the surface of the epidermis.
 

 12. 

A process that occurs in epidermal cells during their movement from deeper epidermal layers to the surface.
 

 13. 

Layers of cells within the epidermis.
 
 
Epidermis                                                                                 Part B
a.
Keratohyalin
e.
Stratum germinativum
b.
Lamellar bodies
f.
Stratum granulosum
c.
Stratum basale
g.
Stratum lucidum
d.
Stratum corneum
h.
Stratum spinosum
 

 14. 

Deepest portion of the epidermis; a single layer of cells; the site of production of most epidermal cells.
 

 15. 

Epidermal layer superficial to the stratum basale, consisting of eight to ten layers of many-sided cells.
 

 16. 

Name for the stratum of the epidermis that includes both the stratum basale and the spinosum.
 

 17. 

Derives its name from protein granules contained in the cells and is superficial to the stratum spinosum.
 

 18. 

Nonmembrane-bound protein granules found in the cells of the stratum granulosum.
 

 19. 

Structures that move to the cell membrane and release their lipid contents into the intercellular space; the lipids are responsible for the permeability characteristics of the epidermis.
 

 20. 

Clear, thin zone above the stratum granulosum; absent in most skin.
 

 21. 

Most superficial stratum of the epidermis; dead cells with hard protein envelope and filled with keratin, which provides structural strength.
 
 
Thick Skin and Thin Skin
a.
Callus
c.
Thick skin
b.
Corn
d.
Thin skin
 

 22. 

The papillae of the dermis of this type of skin compose curving ridges that produce fingerprints and footprints.
 

 23. 

In this type skin the stratum lucidum is usually absent; hair is found in this type of skin.
 

 24. 

Thickened area of thin or thick skin resulting from greatly increased number of layers of stratum corneum.
 

 25. 

Cone-shaped structure that develops in thin or thick skin over a bony prominence.
 
 
Skin Color
a.
Albinism
e.
Melanin
b.
Carotene
f.
Melanosomes
c.
Cyanosis
g.
Ultraviolet light
d.
Melanocytes
 

 26. 

_____, a brown to black pigment, is responsible for most skin color.
 

 27. 

It is produced by _____, irregularly shaped cells with many long processes that extend between the keratinocytes of the stratum basale and the stratum spinosum.
 

 28. 

Melanin is packaged into vesicles called _____, which are released from the cell processes by exocytosis.
 

 29. 

A single mutation can prevent the manufacture of melanin, resulting in _____.
 

 30. 

Exposure to _____ increases melanin production.
 

 31. 

_____ is a yellow pigment found in plants such as carrots. When large amounts of this pigment are consumed, the excess accumulates in the stratum corneum and fat cells of the dermis and hypodermis, causing the skin to develop a yellowish tint.
 

 32. 

A decrease in blood oxygen content produces _____, a bluish skin color, whereas an abundant supply of oxygenated blood produces a reddish hue.
 
 
Epidermis                                                                                 Part C
grp008-1.jpg
a.
Dermis
e.
Stratum germinativum
b.
Epidermis
f.
Stratum granulosum
c.
Stratum basale
g.
Stratum lucidum
d.
Stratum corneum
h.
Stratum spinosum
 

 33. 

1; see picture
 

 34. 

2
 

 35. 

3
 

 36. 

4
 

 37. 

5
 

 38. 

6
 

 39. 

7
 

 40. 

8
 
 
Hair                                                                                            Part A
a.
Lanugo
c.
Vellus hairs
b.
Terminal hairs
 

 41. 

Delicate unpigmented hair that covers the fetus.
 

 42. 

Long, course,  pigmented hair that replace lanugo on the scalp, eyebrows, and eyelids.
 

 43. 

Short, fine, unpigmented hairs that replace lanugo over most of the body.
 

 44. 

The type of hair that replaces vellus hairs at puberty.
 
 
Hair                                                                                           Part B
a.
Cortex
d.
Medulla
b.
Cuticle
e.
Root
c.
Hair bulb
f.
Shaft
 

 45. 

Portion of hair protruding above the surface of the skin.
 

 46. 

An expanded knob at the base of the hair root.
 

 47. 

Central axis of the hair that consists of two or three layers of cells containing soft keratin.
 

 48. 

Forms the bulk of the hair and consists of cells containing hard keratin.
 

 49. 

Outermost layer of the hair shaft and root, composed of a single overlapping layer of cells containing hard keratin.
 
 
Hair                                                                                            Part C
a.
Arrector pili
c.
Epithelial root sheath
b.
Dermal root sheath
d.
Matrix
 

 50. 

Surrounds the epithelial root sheath.
 

 51. 

Layers of epithelial cells immediately surrounding the root of the hair.
 

 52. 

Mass of undiffentiated epithelial cells inside the hair bulb that produces the hair and internal epithelial root sheath
 

 53. 

Smooth muscle cells that attach to the hair follicle dermal root sheath and the papillary layer of the dermis; cause hair to “stand on end.”
 
 
Hair                                                                                            Part D
grp012-1.jpg
a.
Cortex
h.
Hair follicle
b.
Cuticle
i.
Hair root
c.
Dermal papilla
j.
Hair shaft
d.
Dermal root sheath
k.
Internal epithelial root sheath
e.
External epithelial root sheath
l.
Matrix
f.
Hair
m.
Medulla
g.
Hair bulb
 

 54. 

1; see picture
 

 55. 

2
 

 56. 

3
 

 57. 

4
 

 58. 

5
 

 59. 

6
 

 60. 

7
 

 61. 

8
 

 62. 

9
 

 63. 

10
 

 64. 

11
 

 65. 

12
 

 66. 

13
 
 
Glands                                                                                      Part A
a.
Apocrine sweat gland
d.
Sebaceous gland
b.
Ceruminous gland
e.
Sebum
c.
Merocrine sweat gland
 

 67. 

White substance rich in lipids, which oils the hair and skin surface, prevents drying, and protects against bacteria.
 

 68. 

Gland that opens into a hair follicle; produces sebum.
 

 69. 

Gland that opens to the surface of the skin and secretes an isotonic fluid that is mostly water; involved with temperature regulation.
 

 70. 

Gland that usually opens into a hair follicle; secretes an organic substance that is metabolized by bacteria to produce body odor.
 
 
Glands                                                                                        Part B
grp014-1.jpg
a.
Apocrine sweat gland
c.
Sebaceous gland
b.
Merocrine sweat gland
 

 71. 

1; see picture
 

 72. 

2
 

 73. 

3
 
 
Functions of the Integumentary System
a.
Excretion
d.
Temperature regulation
b.
Protection
e.
Vitamin D production
c.
Sensation
 

 74. 

Accomplished by the skin as a physical barrier, as a permeability barrier, as a barrier against ultraviolet light, and as a barrier against abrasion.
 

 75. 

Carried out producing sweat and increasing or decreasing blood vessel diameter.
 

 76. 

Begins when a precursor molecule in the skin is exposed to ultraviolet light and is converted to cholecalciferol.
 

 77. 

Detection of touch, temperature, and pain.
 

 78. 

Occurs to a very slight degree with sweat production when some urea, uric acid, and ammonia are lost.
 
 
Nails                                                                                           Part A
a.
Eponychium
f.
Nail fold
b.
Hyponychium
g.
Nail groove
c.
Lunula
h.
Nail matrix
d.
Nail bed
i.
Nail root
e.
Nail body
 

 79. 

Proximal portion of the nail that is covered by skin.
 

 80. 

Portion of the skin that covers the lateral and proximal edges of the nail.
 

 81. 

Holds the edges of the nail in place.
 

 82. 

Cuticle; the stratum corneum of the nail fold that grows onto the nail body.
 

 83. 

Nail root and nail body attach to this structure.
 

 84. 

Proximal portion of the nail bed; produces most of the nail.
 

 85. 

Whitish, crescent-shaped area at the base of the nail; part of the nail matrix.
 
 
Nails                                                                                           Part B
grp017-1.jpg
a.
Eponychium (cuticle)
e.
Nail body
b.
Hyponychium
f.
Nail matrix
c.
Lanula
g.
Nail root
d.
Nail bed
 

 86. 

1; see picture
 

 87. 

2
 

 88. 

3
 

 89. 

4
 

 90. 

5
 

 91. 

6
 

 92. 

7
 

 93. 

8
 

 94. 

9
 

 95. 

10
 
 
The Effects of Aging on the Integumentary System
a.
Decrease(s)
b.
Increases(s)
 

 96. 

As the body ages, blood flow to the skin _____,
 

 97. 

and the thickness of the skin _____.
 

 98. 

Elastic fibers in the dermis _____, and the skin tends to sag.
 

 99. 

A _____ in the activity of sebaceous and sweat glands results in dry skin
 

 100. 

and a _____ in thermoregulatory ability.
 

 101. 

The _____ in ability to sweat can contribute to death from heat prostration in elderly individuals.
 

 102. 

The number of functioning melanocytes _____, but in some localized areas,
 

 103. 

especially the hands and face, melanocytes _____ to produce age spots.
 

 104. 

White or gray hairs occur because of a _____ in melanin production.
 
 
Integumentary Disorders                                                          Part A
a.
Acne
c.
Ringworm and athlete’s foot
b.
Decubitus ulcers
d.
Warts
 

 105. 

Disorder of the hair follicles and sebaceous glands that involves testosterone and bacteria.
 

 106. 

Viral infection of the epidermis.
 

 107. 

Fungal infections that affect the keratinized portion of the skin.
 

 108. 

Disorder caused by ischemia and necrosis of the hypodermis.
 
 
Integumentary Disorders                                                          Part B
a.
Basal cell carcinoma
c.
Squamous cell carcinoma
b.
Malignant melanoma
 

 109. 

Cancer that begins in the stratum basale and extends into the dermis to produce an open ulcer; the most frequent type of skin cancer.
 

 110. 

Cancer that typically produces a nodular, keratinized tumor confined to the epidermis.
 

 111. 

Less common form of skin cancer that usually arises from a preexisting mole; the skin cancer that is most often fatal if not diagnosed and treated early.
 



 
         Start Over