Name __ 64. What structures contain the blood and nerve supply that provide the nutrients nd a.Puruncles b. Sebaceous glands e. Hair bulbs d. Dermal papillae __ 65.What term refers to the shape of the hair strand? a.Wave pattern b. Whorl c.Hair stream d. Cowlick __ 66. The sudden falling out of hair in round patches or baldness in spots is know a. alopecia arenta b. postpartum alopecia c. alopecia totalis d.androgenic alopecia __ 67. Trichoptilosis is the technical term for __ . a. beaded hair b. knotted hair c. split ends d. hair loss __ 68. A lengthwise section of hair shows that cuticle scales overlap and each ii the __ a. cortex b. melanin c.medulla d.root

## Step1<br />For question 64, we need to identify the structure that contains the blood and nerve supply that provides nutrients. The correct answer is 'd. Dermal papillae'. Dermal papillae are small, nipple-like extensions of the dermis into the epidermis. They contain capillaries and nerve endings, which supply nutrients and oxygen to the epidermis.<br /><br />## Step2<br />For question 65, we need to identify the term that refers to the shape of the hair strand. The correct answer is 'b. Whorl'. A whorl is a circular or spiral pattern, which is the shape of a hair strand.<br /><br />## Step3<br />For question 66, we need to identify the term that refers to the sudden falling out of hair in round patches or baldness in spots. The correct answer is 'a. alopecia arenta'. Alopecia areata is an autoimmune disorder that causes hair to fall out in patches.<br /><br />## Step4<br />For question 67, we need to identify the technical term for 'Trichoptilosis'. The correct answer is 'c. split ends'. Trichoptilosis is the technical term for split ends, which is a condition where the ends of the hair split.<br /><br />## Step5<br />For question 68, we need to identify what a lengthwise section of hair shows. The correct answer is 'c. medulla'. A lengthwise section of hair shows that cuticle scales overlap and each is in the medulla, which is the innermost layer of the hair.