Lesson 3 Flashcards
(136 cards)
1
Q
- Definition of tegumentum?
A
Cover skin
2
Q
2.which are the accessory structures?
A
Hair nail gland
3
Q
3.which are the largest organ?
A
Skin
4
Q
- Skin is an active system?
A
Yes
5
Q
- What is the function of the skin?
A
Body temperature
Removal waste
Vitamin d
Change in the environment
First line of defense
6
Q
- what is the surface of the skin?
A
2m2
7
Q
7.what is the weight of the skin?
A
4,5-5kg
8
Q
8.what is the pH of the skin?
A
Acid 5,5
9
Q
9.Skin is it covered by hair everywhere?
A
No no in palm and feet
10
Q
10.what is the depth of the skin?
A
0,5 - 4mm
11
Q
11.How many layers has the skin?
A
2
12
Q
- what is the name of the different layers?
A
Epidermis
Dermis
13
Q
13.what type of tissue is dermis?
A
Connective tissue
14
Q
- what type of tissue is epidermis?
A
Epithelial tissue
15
Q
15.where do we find adipose tissue?
A
Hypodermis
16
Q
16.what type of tissue do we have in hypodermis?
A
Areolar connective tissue
Adipose tissue
17
Q
17 what is the other name of hypodermis?
A
Subcutaneous tissue
18
Q
- what is the role of the hypodermis?
A
Energy storage physical protection
19
Q
- which type of epithelium do we have in epidermis?
A
Kératinized stratified squamous epithelium
20
Q
Epidermis is vascularized ?
A
No avascular
21
Q
21.how many layers do we have in epidermis?
A
5
22
Q
- how many types of cells do we have in epidermis?
A
4
23
Q
23.do we have nervous sensory ends in epidermis? Yes or no
A
Yes
24
Q
- Give the names of the different types of cells?
A
Mélanocyte
Keratinocyte
Langerhans
Merkel
25
25.which are the most abundant cell of skin?
Keratinocytes
26
26. what is the % of this cell?
90%
27
27. what produce keratinocytes
Keratin fibrous protein protection + lamellar granules
28
28. Keratinocvtes produce lamellar granules? Yes or no?
Yes
29
29. what is the % of melanocytes?
8%
30
30. where is located the melanocytes?
Stratum basale
31
31. What produce melanocytes?
Melanin granule
32
32.What is the role of melanin?
Colour protection uv absorption
33
33.what is the name of the melanin granules?
Melanosomes
34
34.what is the form of the melanin granules (......?
Dendrite like
35
35. what are the percentage of Langerhans cells?
3-4
36
36. where Langerhans cells are the most abundant?
Stratum spinosum living cells
37
37 what is the role of Langerhans cell?
Immune response antigen presenting cekls
38
38. where is located the Langerhans cells?
Living cells
39
39.langerhans cells are derive from....?
Bone marrow
40
40. what is the name of the sensory cells?
Merkel cells
41
41. where are located the sensory cells
Stratum basale
42
42 senrory cells are associated with nothing? True or false?
False with sensory neurons
43
43. what is the function of the sensory cells?
Tactile sensation
44
44.sensory cells has for function sensory sensations, true or false?
False tactile sensation
45
45. how many strata (lavers) do we have in the epidermis?
4-5
46
46.which are the deepest layer?
Stratum basale
47
47. what is the form of the cell in stratum basale
Mono layer cuboidal cells
48
Stratum basale are multilayer true or false
False mono layer
49
49. what is the function of stratum basal?
Régénération germination prolifération structural support
50
50. which types of cells do we have in stratum basal?
Langerhans mélanocyte keratynocyte Merkel
51
51.which are the second deepest layer in epidermis?
Stratum spinosum
52
52. how many layers do we have in stratum spinosum?
8 to 10 layers of keratinocytes
53
53.what is the other name of stratum spinosum?
Malpighi
54
54.what is the form of the cell in stratum spinosum in live skin? In histological preparation
Round big
Shrink spiny
55
55.what is the function of stratum spinosum?
Provide strength flexibility
56
56.In stratum spinosum, cells are attached to other cells by..."?
Dermosome
57
57.which type of cell do we have in stratum spinosum?
Langerhans + mélanocyte
58
58. how many layers do we have in stratum granulosum?
3-5
59
59.what is keratohyalin?
A protein that assembled tonofilaments into keratin
60
60. what is the function of stratum granulosum?
Prevent water loss physical barrier
61
61. which stratum contain dark keratohyalin granules?
Granulosum
62
62.where is located stratum lucidum?
Only in thick skin
63
63. how many layers do we have in stratum lucidum?
3-5 clear flat dead keratinocytes
64
64.stratum lucidum is located only in thin skin? True or false
False thick
65
65.cells in stratum lucidum contain small account of keratin? True or false?
False large account
66
66.which stratum is the most superficial?
Corneum
67
67.how many layers of cells do we have in this stratum?
25-30
68
68.In stratum corneum, we have live keratinocytes? True or false?
False dead
69
69 what is the function of stratum corneum?
Imperméable protection
70
70.where do we have callus?
In stratum corneum
71
71. What is callus?
Abnormal thickening of the epidermis
72
72.Give the steps of stratum from the deepest to the most superficial?
• Basale Spino granu luci corneun
73
73.during the growth and keratinization of stratums, scaling and replacement occurs in a ... time?
2-3 weeks
74
74.what type of tissue do we have in dermis?
Connective tissue
75
75.which type of cells do we have in dermis?
Fibroblast macrophage adipose cells
76
76.what is the role of the collagen in the dermis?
Resistance
77
77.What is the role of the elastic fibers in the dermis?
Elasticity flexibility
78
78.what is the function of the dermis?
Structural
Immunological
Mechanical
Protection
Homeostasis
79
79.Did dermis has nerve endings?
Yes
80
80.which are the different receptors through our skin?
Mechanoreceptor
Thermorécepteur
Nocireceptor
Proprioceptor
81
81.what is the name of the receptors for pain?
Nociceptor
82
82.what is the name of the receptor for position?
Proprioceptor
83
83.what is the name of the receptor for tactile sensation?
Merkells
84
84.what is the name of the receptor for pressure?
Pacinians
85
85.what is the name of the receptor for fine touch?
Meisner
86
86.what did mechanoreceptors?
Presque vibration texture
87
87.papillary region is made of which type of tissue?
Areolar connective tissue
88
88.whih region is close to the epidermis? Papillary or reticular?
Papillary
89
89 .where do we find thin collagen and fine elastic fibers? Papillary or reticular?
Papillary
90
90.what is the role of the dermal papillae?
Increase contact surface with epidermal ridges
91
91.papillary region don't contain capillaries? True or false?
False contain for nutrition of the epidermis
92
92.did papillary region has corpuscular receptors?
Yes mechanoreceptor meissner
93
93.which type of tissue do we have in the reticular region?
Dense irregular connective tissue
94
94.the collagen fibers in the reticular tissue are thin. True or false?
False thicker for the resistance
95
95.what is the function of the reticular region?
Provide resistance extensibility elasticity
96
96 do we have Pacinian corpuscles in reticular region?
Yes + sweat and oil glands + pilous follicles + adipose + fibroblast
97
97.what is the origin of the accessory structures of the skin?
Embryonic epidermis
98
99.what is the function of nails/hair? Of glands?
Protection
Thermorégulation + protection
99
100.what are the different layers of hair?
Medulla cortex cuticles
100
101. where is the hair regeneration?
In the hair bulb at the base
101
102.what is the function of hair?
Protection + sensorial
102
103 cuticle is not keratinized? True or false?
False heavily keratinized
103
104. which is the most superficial (contact with air) of the 3 structures of hair?
Hair cuticle
104
Which is the most deep of the 3 structure of hair
Medulla
105
Goosebumps is due to which muscle
Arrector pili muscles
106
Which are the name of the different gland accessory structures of the skin
Sebaceous
Sweat
Ceruminous
107
What is the form of sebaceous gland
Simple branched acinar glands
108
We have sebaceous gland in hand and Palm true or false
False
109
Sebaceous don’t open directly to the skin true or false
True
110
What is the composition of sebaceous gland
Triglycerides
Cholesterols
Proteins
Salts
111
What is the function of sebaceous gland
Protection
112
Acne is eccrine gland true or false
False an sebaceous
113
Eccrine and merocrine gland are ceruminous gland true or false
False they are sweat glands
114
What is the form of sweat gland( simple, compound)
Simple coiled tubular glands
115
When start working sweat gland?
Soon after birth
116
What is the composition of sweat gland
Water uric acid urea ammonia salt
117
What is the function of sweat gland
Thermorégulation excretion of urea uric acid ammonia
118
We find sweat gland everywhere ?
No not in lips auditory conduct glans
119
Do wa have sweat gland in auditory gconduct? Yes or no
No
120
Apocrine gland is a type of sebaceous gland true or false
False is a sweat gland
121
What is the function of apocrine gland?
Emotional sweating
Sweat during sex
No thermorégulation
122
When star apocrine gland?
Starts in puberty
123
Apocrine glands has an apocrine secretion true or false
False is has merocrine secretion
124
Apocrine gland secrete oily substance containing..
Lipid protein steroid
125
Where do we find apocrine gland
Armpit
Groin
Breast Areolar
Anus
126
Mammary glands are an form of
Compound tubular acinar glands
127
Hormones regulate the secretion of mammary gland true or false
True
128
Where do we find ceruminous glands
In external auditory meatus
129
Ceruminous glands produce a waxy secretion called
Cerumen
130
What are the function of skin
Protection physic
Chemical
Thermorégulation
Vitamin d
Secretion
Sensorial
131
Skin has a physical and chemical and biological protection? True or false
True
132
How many Olof water/ day skin secrete?
400
133
Did skin secrete ammonia? True or false
True + urea
134
Skin synthesis vitamin D hepatic and renal enzymes to produce Calcutta il true or false
True
135
What is the function of calcitriol
It favors calcium absorption
136
Calcitriol is the most active form of vitamin D true or false
True
