Q1 Karatin

Q2 Cuticle, Cortex, Medulla 

Q3 Hair Follicle 

Q4 Inner and outer root sheath 

Q5 Cortex

Q6 slant different angles

Q7 Outer- horny layer, outer sheath is not keratinized- inner 2/3 follicle length ending neat the sebaceous glands, IRS will never be keratinize.

Q8 bulbous shape, base of hair follicle, eye shape cavity filled with loose connective tissues. Dermal papilla. 
Q9 contains cells and blood vessels, produce new growth 

Q10 Arrector Pili Muscle 

Q11 over- active sebaceous ducts

Q12 Mitosis

Q13 The three stages of hair growth are important because Cartagena stage stop the hair from growing when sugaring for permanency. Telogen is a resting state of the hair growth, not desirable to remove because it’s already shedding, exogen stage in the final stage in hair growth and release from the follicle, paying attention to the hair growth is important role because of factors and patterns. 
Q14 Subdivided from Anagen, having multiple hairs in one shaft, old one ready to shed with the new hair growing along with it.

Q15 Lanugo hair, Vellus hair, Terminal Hair,Intermediate Hair

Q16 Hereditary factor, genes can produce varying amounts of hair. Predetermined at birth. 
Q17  Stress,Medication, smoking, pregnancy, surgery, hot and warm climates.

Q18 changes recently. 
Q19 Tumors, radiation, scarring, genetics