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BI231 > Integument lecture questions > Flashcards

Integument lecture questions Flashcards

1
Q

A surgeon, who is about to make a surgical incision that has minimal scaring, wants to cut:

across the lines of cleavage.
parallel to the lines of cleavage.
parallel to the flexure lines.
It does not matter since all incisions scar.

A

parallel to the lines of cleavage.

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2
Q

Albinism is the genetic lack of melanin that results in a white coloration of the skin.
True
False

A

True

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3
Q 
Each hair grows in an oblique epithelial tube called a:
hair root
hair root plexus shaft
hair follicle
hair papilla
A

hair follicle

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4
Q

The youngest keratinocytes are found in the stratum basale.
True
False

A

True

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5
Q 
A burn that destroys just the epidermis and dermis, but no underlying tissues) is a:
first degree burn.
third degree burn. 
second degree burn. 
fourth degree burn.
A

third degree burn.

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6
Q 
What type of tissue is found in the most superficial layer of skin?
Simple squamous epithelium 
Stratified squamous epithelium 
Reticular Connective tissue 
Dense irregular connective tissue 
Areolar connective tissue
A

Stratified squamous epithelium

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7
Q 
The stratum \_\_\_\_\_\_ is composed of up to 30 layers of cornified, dead cells.
spinosum 
lucidum 
granulosum 
corneum 
basale
A

corneum

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8
Q 
The stratum \_\_\_\_\_\_\_\_\_ is composed of 3-5 layers of flattened keratinocytes containing dark staining keratin and keratohyalin granules.
basale 
spinosum 
granulosum 
lucidum 
corneum
A

granulosum

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9
Q 
The stratum \_\_\_\_\_\_\_ is a single layer of columnar or high cuboidal cells resting on a basement membrane.
granulosum 
spinosum 
corneum 
lucidum 
basale
A

basale

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10
Q

Ethnic differences in skin color are primarily caused by differences in:
the number if keratinocytes.
the quantity of hemoglobin carried in the blood.
UV radiation exposure.
the quantity of melanin produced.
the number of melanocytes.

A

the quantity of melanin produced.

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11
Q

Freckles are elevated patches with an abnormal coloration of the skin.
True
False

A

False

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12
Q 
Hot weather, exercise, embarrassment, and anger can cause a redness of the skin called:
pallor. 
erythema. 
jaundice. 
hematoma. 
cyanosis.
A

erythema.

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13
Q

what is redness of skin due to capillary enlargement in the dermis called?

A

Erythema

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14
Q

Bedsores result from

A

a chronic reduction in the blood supply to a portion of the skin

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15
Q

Hair and nails are composed of collagen.
True
False

A

False

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16
Q 
Which of the following best describes the composition of the dermis?
papillary plexus
flexure lines 
friction ridges 
lines of cleavage
A

friction ridges

17
Q

Folds that occur at or near joints where the skin is tightly secured to deeper structures so it cannot slide easily are found in the _________ layer.

A

reticular layer

18
Q

Blood vessels in the __________ provide a hair with its sole source of nutrition.

A

hair papilla

19
Q

Which cutaneous glands are concerned with cooling the body?

A

Eccrine glands

20
Q 
Select the statements that are true regarding the ceruminous glands.
Secrete earwax
Blockage and infection 
can cause pimples
Usually open up into a hair follicle 
Waterproof the ear canal
Secrete sebum
A

Secrete earwax

Waterproof the ear canal

21
Q

Which cancer arises from the deepest layer of the skin’s epidermis and rarely metastasizes?

A

Basal cell carcinoma

22
Q

Which type of cell is involved with squamous cell carcinoma?

A

Keratinocytes

23
Q

Which specific layer is involved with squamous cell carcinoma?

A

Stratum spinosum

24
Q

A hair cycle consists of three developmental stages in which order?

A

Anagen, catagen, and telogen

25
Q 
The stratum \_\_\_\_\_\_\_ is composed of many layers of keratinocytes that are firmly attached to each other by desmosomes. This layer also contains dendritic cells.
spinosum 
granulosum 
corneum 
basale 
lucidum
A

spinosum

26
Q

The layer of skin that contains the blood vessels and nerves closest to the surface of the skin is the ________ layer

A

papillary

27
Q

The strength and elasticity of the skin is provided by the

A

dermis.

28
Q

When blood flow through the skin is very low, the skin appears pale and white. This is called

A

pallor.

29
Q

A deficiency of oxygen causes a blueness of the skin called

A

cyanosis.

30
Q

Select the following statements that are true about the epidermis.
Composed of keratinocytes
Contains hair follicles
Contains sweat glands
Composed of loose areolar and adipose connective tissues
Also known as the superficial fascia
Is avascular

A

Composed of keratinocytes

Is avascular

31
Q

The youngest keratinocytes are found in the stratum basale.
True
False

A

True

BI231 (24 decks)

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