Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy Ch. 5 > Integumentary System > Flashcards

Integumentary System Flashcards

1
Q

Functions of integumentary system

A

physical protection from environmental hazards, thermoregulation, synthesis and storage of lipid reserves, excretion, synthesis of vitamin D3 (calcitriol), sensory information, coordination of immune response to pathogens and cancers in the skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Needed for regulation of calcium within the blood

A

calcitriol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

components of integumentary system

A

epidermis and dermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

thicker, has three regions, contains blood vessels, nerves, muscles, and glands

A

dermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

three regions of the dermis

A

papillary region, reticular (thicker) region, subcutaneous layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

strata/layers of the epidermis

A

stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale/germinativum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

how many layers does the epidermis have?

A

four layers in thin skin, skin exposed to friction has five layers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

which layer has no blood supply?

A

epidermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

thickest in thick skin, thin in thin skin, most superficial layer, 25-30 rows of dead flat keratinocytes

A

stratum corneum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

only present in thick skin, fingertips, palms, soles; appears clear, translucent; dead keratinocytes; large amounts of keratin

A

stratum lucidum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

release a lipid rich, water repellent secretion

A

lamellar granules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

contains lamellar granules, granules are very dark stained, 3-5 rows of flattened keratinocytes, organelles are beginning to degenerate

A

stratum granulosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

cells look spiny, 8-10 rows of cells/thicker, get melanin from melanocytes, langerhans cells

A

stratum spinosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

surveillance, first cell to recognize cancer

A

langerhans cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

deepest layer, single row, stratified squamous, melanocytes, tactile epithelial cells/merkel, cells on basement membrane

A

stratum basale/germinativum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

make melanin, give skin its color, all humans have same number, produce melanin and transfer it to keratinocytes

A

melanocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

respond to touch

A

tactile epithelial cells/ merkel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

accumulate protein

A

keratinocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

live in epidermis and engulf

A

macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

how does epidermis meet dermis?

A

epidermal ridges have downward fingers and the dermal papillae have upward fingers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

creates fingerprints?

A

eccrine sweat glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

two layers of the dermis

A

papillary layer and reticular layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

areolar CT, fine collagen and elastic fibers (give skin strength and stretch), finger like projections that indent the epidermis

A

papillary layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

deeper than papillary, dense irregular CT, varies in thickness, always thickest

A

reticular layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
pick up things like touch, pressure, vibration
mechanoreceptors
26
2 sections of dermal blood supply
papillary plexus and cutaneous plexus
27
supplies blood to capillary loops that follow the boundary with the epidermis
papillary plexus
28
at the boundary between the reticular layers and the hypodermis
cutaneous plexus
29
what changes body temperatures?
changing blood going to the skin
30
what do surgeons cut along?
tension lines/ lines of cleavage
31
Plates of packed, hard, dead keratinized epidermal cells
Nails
32
Muscle between dermis and hair follicle sheath
smooth arrector pilli
33
Goosebumps form when exposed to...
physiological or emotional stress
34
dendrites of neurons that are sensitive to touch
root hair plexus
35
3 types of hair
vellus, intermediate, and terminal
36
Peach fuzz
vellus
37
terminal hair location
head
38
Inner portion of hair follicle that contains the pigment melanin
medulla
39
Outer portion of hair follicle
cortex
40
Results from melanocyte activity at the base of the hair follicle
hair color
41
melanocytes are located in
medulla and cortex
42
melanocytes transfer...
melanosomes with either pheomelanin (yellow to red) or eumelanin (brown to black)
43
White hair is due to...
Lack of pigment in the medulla
44
Gray hair is due to...
increase in air spaces within the medulla
45
Location of sebacous gland
Hair shaft
46
location of hair follice
surface of epidermis
47
exocrine glands secrete...
epithelial tissue surface
48
throughout skin, except eardrums, lips, nail beds, glands penis/clitorism, labia minor, broadly distributed, secrete with merocrine
eccrine
49
axilla, groin, areola, and bearded regions of face in males, less distrubuted, secrete with merocrine
apocrine
50
most common; found throughout skin; most numerous in forehead, palms, soles, form fingerprints, secretory portion in deep dermis (reticular thicker portion), stratified cuboidal epithelial tissue, exocytosis
eccrine
51
active during emotional/sexual excitement, secretory portion in very very deep dermis and even subcutaneous layer, more viscous secretion (includes proteins and lipids) that begin secreting at puberty, simple cuboidal epithelial tissue, larger and wider duct lumens
apocrine
52
found in the external ear, secretions external external auditory canal, secrete cerumen/earwax
ceruminous glands
53
cells in S. Basale, mestastaces are not common
Basal cell carcinoma
54
mestastaces are less common, cells in S. Spinosum
squamous cell carcinoma
55
ABCD rule, more likely to metastasize, cancer of melanocytes
melanoma
56
ABCDE of cancer?
``` Assymetrical Border is irregular Color (not uniform) Diamete Evolution ```
57
partial thickness, through epidermis, red and painful
first degree burn (sunburn)
58
blisters, full partial thickness, epidermis and dermis
second degree burn
59
epidermis, dermis, subcutaneous layer and lower, full thickness burn, severs nerves so white leathery, no pain
Third degree burn
60
Rule of nines used for...
to tell severity of burns
61
Palm =?
1% of individuals hand
62
Types of mechanoreceptors in epidermis
merkel's discs, free nerve endings, meissener's corpuscles
63
Mechanoreceptors in dermis
ruffini ending, hair end organ, pacinian corpuscles
64
sense continuous pressure of skin indentation
merkel's discs
65
detect touch and pressure (temperature and pain)
free nerve endings
66
detect light tough, pressure, and vibration
meissener's corpuscles
67
detect stretch, indentatino, proprioception
ruffini ending
68
detect hair movement
hair end organ
69
detect pressure and vibration (onions)
pacinian corpuscles

Anatomy Ch. 5 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions