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問題一覧
1
Largest and heaviest organ of the body
skin
2
(average size human skin) = ____sqm
2
3
The skin is approximately ______ kilograms in weight
4.5
4
Funtions of the Integumentary System
protection, homeostasis, excretion of waste materials, sensory receptor, vitamin d synthesis
5
secretes oil (sebum) that acts as an additional skin barrier & keeps the skin moisture.
sebaceous gland
6
They provide the first line of defense against infection.
immune cells
7
Synthesize Vitamin D and works together with the _______ system for calcium absorption.
digestive
8
Works closely with the ________ system through capillaries located beneath the skin.
circulatory
9
Certain substances can enter the bloodstream through the network of capillaries in the skin that is reason why ___________ can be used to deliver medications in the bloodstream
transdermal patches
10
examples of transdermal patch
nitroglycerin, magnesium
11
Skin also helps regulate body temperature and sensory nerve response with the help of the ________ system.
nervous
12
Keratinized squamous epithelium
epidermis
13
Its thickness depends on location
epidermis
14
4 cell types present in EPIDERMIS
keratinocytes, merkel cells, melanocytes, langerhans cells
15
contains Dead skin cells (topmost layer)
epidermis
16
Enriched with keratin (skin is dry & waterproof)
epidermis
17
Barrier against UV radiation, microorganisms & chemicals.
epidermis
18
Makes up most of the layer of the epidermis
keratinocytes
19
Produces primary protein of the cell
keratinocytes
20
Makes the skin almost waterproof
keratinocytes
21
Protective component of the skin.
keratinocytes
22
Sensory reception
merkel cells
23
Disc-like shape
merkel cells
24
Densely distributed in the fingertips & lips
merkel cells
25
Base of the dermis
merkel cells
26
Synthesis of melanin pigment
melanocytes
27
Protects skin against harmful UV rays or radiation
melanocytes
28
Macrophages (phagocytosis)
langerhans cells
29
Defense against invading and infectious microorganism
langerhans cells
30
aka Stratum Germinativum
stratum basale
31
consists of Simple cuboidal & columnar cells
stratum basale
32
Cells mostly consist of stem cells
stratum basale
33
Mitotic layer (skin is being pushed upwards)
stratum basale
34
8-10 cell layers thick
stratum spinosum
35
Helps make your skin flexible and strong
stratum spinosum
36
Langerhans cells are most abundant in this layer.
stratum spinosum
37
Keratinization process takes place
stratum granulosum
38
Help to form a waterproof barrier that help to prevent fluid loss from the body.
stratum granulosum
39
Contains granules of keratin precursor
stratum granulosum
40
Also known as your “granular layer” of the epidermis
stratum granulosum
41
Thickened areas of the epidermis (soles of the feet)
stratum lucidum
42
Cells begin to degenerate in this layer
stratum lucidum
43
Most superficial layer of the skin
stratum corneum
44
Made up of dead, flat, keratinized cells that sloughed off
stratum corneum
45
Helps to keep moisture from evaporating into atmosphere , which keeps the skin hydrated.
stratum corneum
46
2 layers of the skin
epidermis, dermis
47
5 layers of epidermis
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum