Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P - 1539 > Module 5 - Integumentary System > Flashcards

Module 5 - Integumentary System Flashcards

1
Q

Skin Functions

A

Thermoregulation
Protection – physical, chemical, and biological – barrier
Excretion and absorption
Synthesis of vitamin D
Cutaneous sensations

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

Cutaneous sensations

A

Cutaneous sensations
Touch pressure
Vibration
Tickle
Heat
Cold
Pain

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

Principal Cells of Epidermis

A

4 principal cells
Keratinocytes
Melanocytes
Langerhans
Merkel

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

Keratinocytes

A

Keratinocytes – protein keratin – protect skin and tissue from heart, microbes, and chemicals – produces lamellar granules (water proof) – replacement = keratinization, 2-4 weeks

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

Melanocytes

A

Melanocytes – pigment – skin colour – absorbs damaging UV light

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

Langerhans

A

Langerhans – immune response

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

Merkel

A

Merkel – sensory touch – tactile merkel disc

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

Layers of Epidermis

A

Layers – Deepest to surface
Stratum Basale
Stratum Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum

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

Stratum Basale

A

Stratum Basale – stem cells to divide – stratum germinativum – forms new cells – makes melanin – colour = amount of melanin produced - 1st layer

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

Stratum Spinosum

A

Stratum Spinosum – provides strength and flex - 2nd layer

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

Stratum Granulosum

A

Stratum Granulosum – transition b/w deeper – water-repellent to protect lower metabolically active strata - 3rd layer

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

Stratum Lucidum

A

Stratum Lucidum – ONLY present on fingers, palms, and soles – clear layer to reduce friction - 4th layer

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

Stratum Corneum

A

Stratum Corneum – superficial – dead cells – lamellar granules are water-repellent – friction = callus (abnormal thickening) - 5th layer

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

Dermis

A

Dermis
Deeper layer
Dense irregular connective tissue
Collagen and elastic fibres
Blood vessels, hair follicles, sweat glands
2 layers
Papillary layer
Reticular layer
Epidermal ridges
3 pigments in dermis

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

Papillary layer

A

Papillary layer – areolar connective tissue – Meissner corpuscles (touch) – nerve ends for heat, cold, pain, tickle, and itch – finger prints here – fine elastic fibres

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

Reticular layer

A

Reticular layer (deeper) – collagen – irregular connective - some elastic fibres

17
Q

Epidermal ridges

A

Epidermal ridges – finger prints – contours of underlying dermis – help grasping

18
Q

Pigments in dermis

A

3 pigments in dermis – melanin, carotene, and hemoglobin (blood in capillaries)

19
Q

Subcutaneous – Hypodermis

A

Subcutaneous – Hypodermis
Deepest
Areolar and adipose tissue
Fat storage
Blood vessel passage
Pressure nerve endings

20
Q

Areolar tissue

A

Areolar tissue – loose connective – provides support, protects organs and muscles – binds skin together

21
Q

Hair

A

Hair
Shaft
Root
Hair bulb
Hair papilla
Hair matrix
Arrector pili

22
Q

Hair Functions

A

Functions – protection, thermal insulation, and sensing light touch

23
Q

Parts of shaft and roots

A

Shaft and root are continuous
Outer cuticle
Inner medulla
Innermost cortex

24
Q

Hair bulb

A

Hair bulb – protective layer

25
Q

Arrector pili

A

Arrector pili – muscle controls hair standing or not

26
Q

Hair Matrix

A

Hair matrix – mitotically active – new hair

27
Q

Hair papilla

A

Hair papilla – blood vessels

28
Q

Hair Root

A

Root – penetrates dermis and subQ – living

29
Q

Hair Shaft

A

Shaft – surface of skin – non-living

30
Q

Sebaceous Glands

A

Sebaceous – oil – connected to hair follicles – none in palms and soles
Sebum

31
Q

Sebum

A

Sebum – moistens hair, waterproofs and softens skin, inhibits bacteria

32
Q

Sudoriferous Glands

A

Sudoriferous – sweat
Eccrine
Apocrine

33
Q

Eccrine Glands

A

Eccrine – regulate temp – eliminates waste

34
Q

Apocrine Glands

A

Apocrine – skin of axilla, pubis, and areolae – ducts open onto follicles

35
Q

Ceruminous glands

A

Ceruminous glands – modified sudoriferous - cerumen

36
Q

Cerumen

A

Cerumen – external auditory meatus

A&P - 1539 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions