Name: __ 40 Hair is approximately __ percent protein. a 30 b. so C. zo in 90 __ 41. What is a scalp disonder characterized by dry, sulfur-yellow cup-like crusts on the scalp? a. Pediculosis furuncle (b) Tinea favosa C. Tinea capitis in is -d. Tinea barbae __ 42. -Which term refers to a layer that protects the hair from penetration and prevents damage to hair fibers? Hair cuticle Hair follicle b. C. Medulla d. Cortex __ 43. What are the three growth cycles of human hair? phase, and telogen b. Anagen, transition, and mature Anagen,catagen, and telogen d. Catagen, return, and transition __ 44.The hair shaft that emerges from the scalp is a nonliving fiber composed of __ keratinized acids b. melanin protein C. hydrogen bonds d. keratinized protein __ Which type of hair has the largest diameter and usually requires more processing? a. Terminal hair b. Coarse hair C. Gray hair d. Medium hair __ 46. The ability of the hair to absorb moisture is hair __ a. elasticity b. saturation density d. porosity What term refers to an acute, localized bacterial infection of the hair follicle that produces const a. Capitis b. Alopecia C. Furuncle d. Tinea

## Step1<br />For question 40, we need to identify the percentage of protein in hair. The correct answer is 90%, which is option d.<br /><br />## Step2<br />For question 41, we need to identify a scalp disorder characterized by dry, sulfur-yellow cup-like crusts on the scalp. The correct answer is Tinea favosa, which is option b.<br /><br />## Step3<br />For question 42, we need to identify the term that refers to a layer that protects the hair from penetration and prevents damage to hair fibers. The correct answer is Hair cuticle, which is option a.<br /><br />## Step4<br />For question 43, we need to identify the three growth cycles of human hair. The correct answer is Anagen, catagen, and telogen, which is option c.<br /><br />## Step5<br />For question 44, we need to identify the composition of the hair shaft that emerges from the scalp. The correct answer is keratinized protein, which is option d.<br /><br />## Step6<br />For question 45, we need to identify the type of hair that has the largest diameter and usually requires more processing. The correct answer is Coarse hair, which is option b.<br /><br />## Step7<br />For question 46, we need to identify the term that refers to the ability of the hair to absorb moisture. The correct answer is porosity, which is option d.<br /><br />## Step8<br />For question 47, we identify the term that refers to an acute, localized bacterial infection of the hair follicle that produces crusts. The correct answer is Furuncle, which is option c.