- •Skin anatomy and histology
- •Epidermis, the outer skin layer
- •Dermis, the true skin
- •The deep part of the skin (subcutaneous fatty tissue), the hypoderm
- •Blood system of the skin
- •Glandular apparatus of the skin. Sebaceous and sweat glands
- •Hair and hair follicles
- •Skin physiology
- •Protective (barrier) function of the skin
- •Skin as an organ of sense
- •Skin thermoregulating function
- •Secretory and excretory functions of the skin
- •Respiratory and resorption functions of the skin
- •Participation of skin in metabolism
- •Histomorphological changes in the skin
- •Materials for self-checking:
Materials for self-checking:
1. In which layer is found melanin? (1 point)
1) Horny;
2) Dermis;
3) Granular layer;
4) Stratum basale;*
5) None of the above.
2. Sweat glands are classified into:
1) Anagen and Telogen;
2) Eccrine and Apocrine;*
3) Collagen and Apocrine;
4) Collagen and Telogen.
3. What basic elements are included in a horny layer?
1) Nucleus;
2) Keratogialin;
3) Keratin;*
4) Eleydin;
5) Melanin.
4. From what germinative zones develops an epidermis?
1) Entoderm;
2) Ectoderm;*
3) Dorzal mesoderm;
4) Ventral mezoderm;
5) Interstitial mezodermy.
5. The color of skin depends on:
1) Of the thickness of horny layer;*
2) Of the thickness of dermis;
3) Of the amount of melanin;*
4) Of occurrence of vessels in the skin;*
5) Of occurrence of carotin in the skin.*
6. Under radiation some cell of stratum basale were destroyed. What function of the last will weaken?
1) Protective;
2) Barrier;
3) Dielectric;
4) Regenerative;*
5) Sucking.
7. What types of pathohistological changes of skin are distinguished in the epidermis?
1) Acanthosis;*
2) Granulosis;*
3) Spongiosis;*
4) Papillomatosis;
5) Acantolysis.*
8. What basic elements are included in a basal layer?
1) Nucleus;*
2) Keratogialin;
3) Keratin;
4) Eleydin;
5) Melanin.*
9. Derma consists of:
1) Fibrous substances;*
2) Basic interstitial substance;*
3) Cellular elements;*
4) Granules of keratohyalin;
5) Hypodermic fatty tissue.
10. The arterial vessels of skin form:
1) Deep hypodermic vascular plexus;
2) Superficial vascular plexus;*
3) Intradermal vascular plexus;
4) Epidermal vascular plexus;
5) Capillaries of papillae.*
11. What cells produce a pigment melanin?
1) Keratinocytes;
2) Melanocytes;*
3) Langerhans cells;
4) Merkel cells;
5) T-lymphocytes.
12. What basic elements are included in granular layer?
1) Nucleus;*
2) Keratogialin;*
3) Keratin;
4) Eleydin;
5) Melanin.
13. Function of apocrine sweat glands:
1) Begin to function from the moment of birth of child;
2) The activity is linked with the period of pubescence;*
3) Related to the nervous system;*
4) Related to the endocrine system;*
5) Related to the gender.
14. The main function of the basal cell is:
1) Synthesis of eleydin;
2) Synthesis of keratin;
3) Mitosis;*
4) Secretion of a skin fat;
5) Permanent desquamation.
15. The dendritic cells with granules of deep-brown color in the cytoplasm are found in biopsy material of epidermis of patient’s skin. What are their name?
1) Intradermal macrophages;
2) Keratinocytes;
3) Merkel cells;
4) Melanocytes;*
5) Lymphocytes.
16. What basic elements are included in the prickle-cell layer?
1) Nucleus;*
2) Keratogialin;
3) Keratin;
4) Eleydin;
5) Melanin.*
17. To what type of glands belong sweat glands:
1) Compound alveolar;
2) Compound tubular;
3) Simple tubular;*
4) Simple alveolar;
5) Compound tubuloalveolar.
18. What layers are distinguished in the dermis?
1) Basal;
2) Papillary;*
3) Vascular;
4) Reticular;*
5) Lucid.
19. The blood vessels locate in:
1) Epidermis;
2) Epithelium;
3) Papillary layer;*
4) Reticular layer;*
5) Hypoderm.*
20. The trauma of skin has happened with the damage of the reticular layer. From which cells will be the regeneration of this layer?
1) Macrophages;
2) Melanoblasts;
3) Lymphoblasts;
4) Fibroblasts;*
5) Neuroblasts.
21. What basic elements are included in the lucid layer?
1) Nucleus;
2) Keratogialin;
3) Keratin;
4) Eleydin;*
5) Melanin.
22. To what type of glands belong sebaceous glands:
1) Simple tubular unbranched;
2) Simple alveolar branched;*
3) Compound alveolar;
4) Compound tubular;
5) Compound tubuloalveolar.
23. The basic cellular components of dermis are:
1) Fibroblasts;*
2) Fibrocytes;*
3) Histiocytes;*
4) Keratinocytes;
5) Mastocytes.*
24. What inflammatory pathohistological changes of skin are distinguished in the epidermis?
1) Granulosis;
2) Acanthosis;
3) Acantolysis;
4) Spongiosis;*
5) Ballooning degeneration.*
25. The most superficial layer of skin is:
1) Dermis;
2) Stratum corneum;*
3) Stratum basale;
4) Stratum spinosum;
5) Stratum granulosum.
26. What layer of skin can be found in thick skin, but can’t be found in thin?
1) Stratum corneum;
2) Stratum basale;
3) Stratum granulosum;
4) Stratum spinosum;
5) Stratum lucidum.*
27. A basic function of the skin is protection from:
1) Abrasion;
2) Ultraviolet light;
3) Entry of microorganisms;
4) Dehydration;
5) All of these.*
28. The layer of skin that is composed of dense connective tissue and has projections called papillae is the:
1) Dermis;*
2) Hypodermis;
3) Stratum corneum;
4) Stratum basale;
5) Stratum lucidum.
29. This layer contains loose connective tissue and has about half of the body's stored fat:
1) Dermis;*
2) Hypodermis;
3) Stratum corneum;
4) Stratum basale;
5) Stratum lucidum.
30. The specific layer that shapes the ridges for fingerprints and footprints is the:
1) Hypodermis;
2) Papillary layer of the dermis;*
3) Reticular layer of the dermis;
4) Underlying muscle layer;
5) Superficial bony layer.
31. The epidermis is nourished by diffusion from capillaries in the:
1) Epidermis;
2) Reticular layer of the dermis;
3) Papillary layer of the dermis;*
4) Hypodermis;
5) Subcutaneous tissue.
32. The outermost layer of the skin is the:
1) Hypodermis;
2) Subcutaneous layer;
3) Epidermis;*
4) Dermis;
5) Subcutaneous tissue.
33. All of the following are functions of the skin except:
1) Protection;
2) Vitamin B synthesis;*
3) Temperature regulation;
4) Sensation.
34. The protein that helps protect the skin and underlying tissue is:
1) Melanin;
2) Melatonin;
3) Keratin;*
4) Actin.
35. The cells producing the pigment responsible for skin color are the:
1) Keratinocytes;
2) Melanocytes;*
3) Adipocytes.
4) Merkel cells.
36. All of the following are accessory organs of the skin EXCEPT:
1) Hair;
2) Nails;
3) Pain receptors;*
4) Sweat glands.
37. The bundle of smooth muscles associated with hair follicles is called:
1) Orbicularis muscle;
2) Sebaceous bundle;
3) Arrector pili;*
4) None of the above.
38. The pH of the skin is around
1) 5.0;
2) 8.0;
3) 7.0;
4) 5.5.*
39. Star shaped cells situated in the basal layer of the epidermis which are called melanocytes produce:
1) Melatonin;
2) Melanin;*
3) Melanocyte stimulating hormone;
4) Elastin.
40. The sebaceous glands produce:
1) The acid mantle;
2) Sweat;
3) Heat;
4) Sebum.*
41. The function of the erector pili is to:
1) Constrict blood vessels;
2) Dilate blood vessels;
3) Make your hair grow;
4) Raise the hairs when you are cold.*
42. The basic elements of the immune system of skin are:
1) Langerhans cells;*
2) T-lymphocytes;*
3) Keratinocytes;
4) Merkel cells;
5) Meissner’s corpuscles.
