forensics ch 12
the shaft consists of what 3 parts? - correct answer ✔cuticle, cortex, and
medulla
Cuticle - correct answer ✔-scale structure covering the exterior of the hair
-The scale pattern is only useful to identification of animal hairs (scan
microscope or make a cast and view in compound microscope)
Cortex - correct answer ✔-the main body of the hair shaft
-Identification through its color shape and granule patterns
Medulla - correct answer ✔a cellular column running through the center of
the hair (humans have none or fragmented, animals have continuous or
interrupted)
medullary index - correct answer ✔measures the diameter of the medulla
relative to the diameter of the hair shaft (humans: less than 1/3, animals: ½ or
greater
CD-ROM - correct answer ✔database of 35 most common animal hairs
Anagen - correct answer ✔the initial growth phase during which the hair
follicle actively produces hair
Catagen - correct answer ✔a transition stage between the anagen and the
telogen phases of hair growth
the shaft consists of what 3 parts? - correct answer ✔cuticle, cortex, and
medulla
Cuticle - correct answer ✔-scale structure covering the exterior of the hair
-The scale pattern is only useful to identification of animal hairs (scan
microscope or make a cast and view in compound microscope)
Cortex - correct answer ✔-the main body of the hair shaft
-Identification through its color shape and granule patterns
Medulla - correct answer ✔a cellular column running through the center of
the hair (humans have none or fragmented, animals have continuous or
interrupted)
medullary index - correct answer ✔measures the diameter of the medulla
relative to the diameter of the hair shaft (humans: less than 1/3, animals: ½ or
greater
CD-ROM - correct answer ✔database of 35 most common animal hairs
Anagen - correct answer ✔the initial growth phase during which the hair
follicle actively produces hair
Catagen - correct answer ✔a transition stage between the anagen and the
telogen phases of hair growth
