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Anatomy > Integumentary System > Flashcards

Integumentary System Flashcards

(55 cards)

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1
Q

What percentage of human body weight does the integumentary system compose?

A

~ 7% of total body weight

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2
Q

The superficial epidermis overlies the _______

A

the dermis

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3
Q

The _____ is technically not part of the integument

A

the hypodermis

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4
Q

Why is skin considered an organ?

A

Because it is made up of different tissue types with a common function

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5
Q

What are the layers of the integument?

A
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6
Q
A
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7
Q

What are the functions of the integument? (5 of them)

A
  • Protection
  • Body temperature regulation
  • Excretion of wastes through sweat
  • Vitamin D synthesis
  • Sensory Reception
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8
Q

What are the four types of epidermal cells?

A
  1. Keratinocytes
  2. Melanocytes
  3. Tactile epithelial cells (Merkel cells)
  4. Dendritic cells
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9
Q

What are the characteristics of: Keratinocytes?

A
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10
Q

What are the characteristics of: Melanocytes?

A
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11
Q

What are the characteristics of: Tactile epithelial cells (Merkel cells)?

A
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12
Q

What are the characteristics of: Dendritic cells?

A
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13
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14
Q
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15
Q

What are the four main epidermal layers from most superficial (nearest to outside of body) to least superficial (inside body)?

A

(Most Superficial)

Stratum Corneum

Stratum Granulosum

Stratum Spinosum

Stratum Basale

(Least Superficial)

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16
Q
A
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17
Q

What is the stratum lucidum? Where is it found?

A
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18
Q
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19
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20
Q

What is the difference between thick skin and thin skin?

A
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21
Q
A
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22
Q

What are the characteristics and differences between callus, corn, and blister?

A
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23
Q

What are the layers of the dermis?

Study These Flashcards
A

Papillary

Reticular

24
Q

What are the characteristics of the papillary layer of the dermis?

25
What is responsible for the formation of fingerprints?
**dermal papillae** form fingerprints
26
What are the characteristics of the **reticular layer** of the demis?
27
What are **cleavage lines?**
28
What are the characteristics of the **hypodermis**?
29
What are the four types of burns and what are their characteristics?
30
What is the **rule of nines**? (not on test but useful)
31
What are three types of skin cancer?
Basal cell carcinoma Squamous cell carcinoma melanoma
32
What are the characteristics of **basal cell carcinoma**?
33
What are the characteristics of **squamous cell carcinoma**?
34
What are the characteristics of **melanoma**?
35
Which cancer originates in keratinocytes of the stratum basale? (would not be surprised if you saw similar question on exam for the other cancers...)
Basal cell carcinoma
36
What are the appendages of the skin? (five of them)
37
What are the structures of the **nail**?
* Corresponds to hoof or claw of other mammals * Scale-like modification of epidermis made of hard keratin. * **Nail Plate** * **​**the part of the nail you can see * **Nail root** * Hidden under proximal nail fold * Sits on **nail bed** (pink due to blood supply in dermis) * **Nail Matrix** * **​**site of growth * forms **lunula** under nail (pale) * **Eponychium** * cuticle
38
What are the functions of hair and hair follicles?
39
What are the different types of hair?
40
What is the basic structure of hair?
41
What is the advanced structure of hair?
42
What is the structure of the hair follicle?
43
What is the **hair root plexus**?
44
What is the connection between the hair matrix and dermal papillae?
45
What are the growth cycles of hair?
46
What are the differences between straight, wavy, and curly hair?
47
What is responsible for hair color? (not a genetics question)
48
What is the scientific name for hair loss? Why does it happen?
49
What is the **errector pili muscle**?
50
What is **piloerection**?
51
What are the 2 primary types of exocrine glands found in the skin?
52
What are the characteristics of the **sebaceous gland**?
53
What are the characteristics of sweat glands: eccrine?
54
What are the two types of sweat gland?
Eccrine or sudoriferous glands Apocrine
55
What are the characteristics of the sweat gland: apocrine?

Anatomy (9 decks)

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