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FS - Hair review
hair review
| Question | Answer |
|---|---|
| List 3 ways to collect hair from a crime scene. | (1) picking up each shaft with tweezers, (2) lifting with tape or lint roller, (3) collecting with a vacuum |
| Name the three layers of a shaft of hair. | cuticle, cortex, medulla |
| List the 3 cuticle patterns. | Coronal, spinous, imbricate |
| Which layer is on the outside of the hair? | Cuticle |
| Which layer is in the center of the hair? | Medulla |
| List the 4 medulla patterns. | continuous, fragmented, interrupted, absent |
| The scales on the cuticle overlap in which direction? | toward the tip |
| Which medulla pattern is one solid line in the hair? | continuous |
| Which medulla pattern is broken into sections of equal or almost equal lengths? | interrupted |
| Which medulla pattern is not present at all? | absent |
| Which medulla pattern is broken into sections of different lengths? | fragmented |
| Which term describes the part of the skin where the hair grows? | follicle |
| Which term describes the part of hair growing under the skin? | root |
| List the 4 functions of hair. | keep the body warm, decrease friction, protects skin from sunlight, is a sense organ |
| What is medullary index? | the diameter of the medulla compared to the diameter of the entire hair |
| Who has a thicker medulla, animals or humans? | animals have a thicker medulla |
Created by:
lb goodlock
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