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Nail Structure and Growth Miladys Standard Cosmetology Cosmetology:

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Presentation on theme: "Nail Structure and Growth Miladys Standard Cosmetology Cosmetology:"— Presentation transcript:

1 Nail Structure and Growth Miladys Standard Cosmetology Cosmetology:

2 MILADYS Standard Instructor Support Slides COSMETOLOGY Only those who dare to fail greatly can ever achieve greatly Robert Francis Kennedy

3 MILADYS Standard Instructor Support Slides COSMETOLOGY Objectives Describe the structure and composition of nails Discuss how nails grow

4 MILADYS Standard Instructor Support Slides COSMETOLOGY The Nail An appendage of the skin Technical term: onyx

5 MILADYS Standard Instructor Support Slides COSMETOLOGY Composition of the Nail Keratin Nail plate Healthy nail Nail porosity

6 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Anatomy Nail bed Matrix Nail plate Cuticle, eponychium, hyponychium Specialized ligaments Nail folds

7 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Bed Skin where nail plate rests Extends from lunula to free edge Attached to nail plate Supplied with many nerves

8 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Matrix Where nail is formed Composed of matrix cells Contains nerves, lymph, blood vessels Extends from under nail fold (lunula) Injury to matrix affects growth

9 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Plate Horny nail plate or body Rests on nail bed Formed by matrix cells Constructed in layers Free edge extends over tip

10 MILADYS Standard Instructor Support Slides COSMETOLOGY Cuticle Loose and flexible Seals against foreign matter Prevents injury and infection

11 MILADYS Standard Instructor Support Slides COSMETOLOGY Eponychium and Hyponychium Eponychium: extension of cuticle at base of nail body that partly overlaps lunula (living tissue) Hyponychium: thickened skin beneath free edge

12 MILADYS Standard Instructor Support Slides COSMETOLOGY Specialized Ligaments Attach the nail bed and matrix to underlying bone Located at base of matrix and around edges of nail bed

13 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Folds Folds of normal skin surrounding nail plate Form nail grooves Grooves are slits on sides of nail

14 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Growth Grows forward from matrix Grows in variety of shapes Growth is 1/10 per month Grows faster in summer than winter Childrens nails grow faster than older peoples

15 MILADYS Standard Instructor Support Slides COSMETOLOGY Middle nail grows fastest; thumb slowest Toenails grow slower than fingernails Not shed automatically Nail Growth

16 MILADYS Standard Instructor Support Slides COSMETOLOGY Nail Malformation Caused by disease, injury, infection Fingernail replacement takes 4 – 6 months Toenail replacement takes 9 – 12 months

17 MILADYS Standard Instructor Support Slides COSMETOLOGY Summary and Review Describe a normal healthy nail What is the technical term for nail? What substance composes the nail plate?

18 MILADYS Standard Instructor Support Slides COSMETOLOGY Summary and Review Name the basic parts of the nail What part of the nail contains the nerve and blood supply? Explain how the nail grows

19 MILADYS Standard Instructor Support Slides COSMETOLOGY Congratulations! Youve just completed one unit of study toward program completion!


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