Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
48 Cards in this Set
- Front
- Back
|
The skin and its accessory structures make up the ______________.
|
INTEGUMENTARY SYSTEM |
|
|
Which of the following are functions of the integumentary systems? A- Guard the physical & biochemical integrity B- Maintains a constant body temperature C- Provides sensory information about he surrounding environment D- All of the above |
D- ALL OF THE ABOVE
|
|
|
What is the medical specialty that deals with diagnosing and treading skin disorders? |
DERMATOLOGY
|
|
|
What is the largest organ of the body?
|
THE SKIN |
|
|
The superficial portion of the skin is the _____, which is composed of epithelial tissue. A- Hypodermis B- Epidermis C- Dermis D- None of the above |
B- EPIDERMIS |
|
|
The deeper layer of the skin is the _____, which is primarily composed of connective tissue. A- Hypodermis B- Epidermis C- Dermis D- None of the above |
C- DERMIS
|
|
|
Deep to the dermis is the subcutaneous layer, also known as the ______. A- Hypodermis B- Epidermis C- Dermis D- None of the above |
A- HYPODERMIS
|
|
|
_____ produce the protein keratin, which helps protects the skin and underlying tissue from heat, microbes, and chemicals, and lamellar granules which release a waterproof sealant. A- Melanocytes B- Keratinocytes C- Langerhans cells D- Merkel cells |
B- KERATINOCYTES
|
|
|
____ produce the pigment melanin which contributes to skin color and absorbs damaging ultraviolet light. A- Melanocytes B- Keratinocytes C- Langerhans cells D- Merkel cells |
A- MELNOCYTES
|
|
|
Intraepidermal macrophages, or _______________, participate in immune responses. A- Melanocytes B- Keratinocytes C- Langerhans cells D- Merkel cells |
C- LANGERHANS CELLS
|
|
|
Tactile epithelial cells, or ____________, contact a sensory structure called a tactile disc and function in the sensation of touch. A- Melanocytes B- Keratinocytes C- Langerhans cells D- Merkel cells |
D- MERKEL CELLS
|
|
|
What layer of the epidermis an contains some stem cells capable of undergoing cell division to form new cells? |
THE STRATUM BASAL |
|
|
Which is true about the stratum basal? A- Keratinocytes with a cytoskeleton of tonofilaments are found here B- AKA the stratum germinativum (to indicate its role in the formation of new cells C- When the germinal portion is destroyed, it cannot regenerate. D- All of the above |
D- ALL OF THE ABOVE
|
|
|
______ provides strength and flexibility o the skin. A- The stratum lucidum B- The stratum granulosum C- The stratum spinosum D- The stratum corneum |
C- THE STRATUM SPINOSUM |
|
|
________ marks the transition between the deeper, metabolically active strata and he dead cells of the more superficial strata. This layer forms water repellant. A- The stratum lucidum B- The stratum granulosum C- The stratum spinosum D- The stratum corneum |
B- THE STRATUM GRANULOSUM
|
|
|
Which layer of the epidermis is present only in the fingers, palms, and soles? A- The stratum lucidum B- The stratum granulosum C- The stratum spinosum D- The stratum corneum |
A- THE STRATUM LUCIDUM
|
|
|
Which layer of the epidermis is the most superficial layer and consists of dead cells? A- The stratum lucidum B- The stratum granulosum C- The stratum spinosum D- The stratum corneum |
D- THE STRATUM CORNEUM
|
|
|
________, her replacement of cell contents with protein keratin, occurs as cells move to the skin surface over 2-4 weeks.
|
KERATINIZATION
|
|
|
The ________ is areolar connective tissue containing fine elastic fibers, dermal papillae, corpuscles of touch, and free nerve endings from sensations of hot, cold, pain, tickle, and itch. A- Reticular Layer of the Dermis B- Papillary Layer of the Dermis |
B- PAPILLARY LAYER OF THE DERMIS
|
|
|
The ________ is the deeper part of the dermis consisting of dense, irregular connective tissue containing bundles of collagen fibers and some elastic fibers. A- Reticular Layer of the Dermis B- Papillary Layer of the Dermis |
A- RETICULAR LAYER OF THE DERMIS |
|
|
Collagen and elastic fibers provide: A- Strength B- Extensibility C- Elasticity D- All of the above |
D- ALL OF THE ABOVE
|
|
|
What are three pigments that impart a wide variety of colors to the skin? |
MELANIN, HEMOGLOBIN, AND CAROTENE
|
|
|
_________ synthesize melanin from the amino acid tyrosine in the presence of an enzyme called tyrosinase.
|
MELANOCYTES
|
|
|
_______ causes the skin's color to vary from pale yellow to reddish-brown to black.
|
MELANIN
|
|
|
Pheomelanin ranges from ________ to _________.
|
YELLOW TO RED
|
|
|
Eumelanin ranges from _______ to __________.
|
BROWN TO BLACK |
|
|
Accessory structures of the skin develop from the embryonic epidermis and includes : |
HAIR, GLANDS. AND NAILS
|
|
|
________, or _______, are present on most skin surfaces except the palms, palmar surfaces of the digits, soles, and plantar surfaces of the digits. |
HAIR OR PILI
|
|
|
The hair consists of a: A- Shaft B- Root C- Cuticle and follicle D- All of the above |
D- ALL OF THE ABOVE |
|
|
irregularly shaped cells that contain large amounts of pigment granules. |
MEDULLA
|
|
|
The _______ forms the major part of the shaft & consists of elongated cells. A- Medulla B- Cortex C- Cuticle D- None of the above |
B- CORTEX
|
|
|
The ________ is the outermost later consists of a single layer o thin, flat, cells that are most heavily keratinized. A- Medulla B- Cortex C- Cuticle D- None of the above |
C- CUTICLE
|
|
|
The _____ root sheath is a downward continuation of he epidermis. A- External B- Internal |
A- EXTRERNAL
|
|
|
The _____ root sheath is produced by the matrix. A- External B- Internal |
B- INTERNAL
|
|
|
______ re hard, keratinized epidermal cells over the dorsal surfaces of the terminal portions of the fingers and toes.
|
NAILS
|
|
|
The principal parts of a nail are the: A- Root, body, and free edge B- The lunula, eponychium and matrix C- Both A and B are correct D- None of the above |
C- BOTH A AND B ARE CORRECT
|
|
|
What are the functions of nails? A- Helps in grasping B- Manipulates small objects C- Provide protection against trauma to the ends of the digits D- All of the above |
D- ALL OF THE ABOVE |
|
|
Thin skin covers all parts of the body except:
|
PALMS, PALMAR SURFACES, DIGITS AND SOLES
|
|
|
Thin skin lacks _______.
|
|
|
|
What does thick skin cover? |
PALMS, PALMER SURFACES OF THE DIGITAS AND SOLES.
|
|
|
Thick skins lacks _________ but has more _______ than thin skin.
|
HAIR FOLLICLES, ARRECTOR PILI MUSCLES, AND SEBACEOUS GLANDS SWEAT GLANDS |
|
|
In an ___________, he central portion of the wound usually extends deep down to the dermis, whereas the wound edge usually involve only superficial damage to the epidermal cells.
|
EPIDERMAL WOUND
|
|
|
Epidermal wounds are repaired by: A- Enlargement and migration of basal cells B- Contract inhibition C- Divide migrating and stationary basal cells. D- All of the above |
D- ALL OFTHE ABOVE
|
|
|
When an injury extends to tissues deep to the epidermis, the repair process is more complex than epidermal healing, and __________ formation results.
|
SCAR
|
|
|
During the ______ of deep wound healing, epithelial cells beneath the scab bridge the wound, fibroblasts begin scar tissue, and damaged blood vessels being to grow. A- Inflammatory B- Migratory C- Proliferative D- Maturations |
B- MIGRATORY
|
|
|
During the _____, the events of the migratory phases intensify. A- Inflammatory B- Migratory C- Proliferative D- Maturations |
C- PROLIFERATIVE
|
|
|
During the ______ of deeps wound, a blood clot unties the wound edges, epithelial cells migrate across the wound, vasodilation and increased permeability of blood vessels deliver phagocytes and fibroblasts form. A- Inflammatory B- Migratory C- Proliferative D- Maturations |
A- INFLAMMATORY
|
|
|
During which of he following phases does he scab loughs off, the epidermis is restored to normal thickness, collagen fibers become more organized, fibroblasts begin to disappear, and blood vessels are restored to normal? A- Inflammatory B- Migratory C- Proliferative D- Maturation |
D- MATURATION
|
