I need help on #21 After examining the wet mount of a human hair, carefully draw

Question

I need help on #21

After examining the wet mount of a human hair, carefully draw within the circle below a section of the hair (magnified 100X). Using your text, and the color plates as a guide, label the shaft, root, and bulb. Match appropriately. Best fit. stratum corneum papillary region adipose tissue sebaceous gland ceruminous gland sudoriferous gland hemoglobin melanin carotene A. pigment absent in albinos B. pigment found in the eyes C. hypodermis D. produces sweat (perspiration) E. dermis AB. along with sebaceous glands produces ear wax AC. epidermis AD. pigment found in the red blood cell AE. produces oil (sebum) The partial or complete loss of melanocytes from areas of skin produces patchy, white spots, and the condition is called freckles.middot a) true b) false The waterproofing protein found in the top layer of the epidermis is?__?___. a)keratin b) carotene c) hemoglobin d) acne e) sweat Rank (#1 middot least likely to metastasize: #2 middot variable degree of metastasis: #3 middot most likely to metastasize and therefore the most dangerous) the following types of skin cancer according to degree of malignancy. ____malignant melanoma ____squamous cell carcinoma ____basal cell carcinoma Which of the following is the proper sequence of layering of the epidermis, going from the free surface toward the underlying tissues? a) corneum, granulosum, lucidum, spinosum b) basale, spinosum, granulosum, corneum c) spinosum, basale, granulosum, corneum d) corneum, lucidum, granulosum, spinosum, basale Skin color is determined all of the following except the amount of___?___. a) blood vessels in the dermis b) melanin c) carotene d) collagen

Explanation / Answer

21. A. Pigment absent in albinos - melanin. It is responsible for the coloration of skin. The higher the melanin darker will be the skin.

B. Pigment found in the eyes- Melanin. It is responsible for the coloration of the iris.

C. Hypodermis- Adipose tissue. Hypodermis lies between dermis and underlying tissues and organs and contains adipose tissues where fat is stored.

D. Produces sweat (perspiration)- Sudoriferous glands. they are also known as sweat glands.

E. Dermis- Papillary region is the uppermost region of the dermis. Dermis lies in between epidermis and subcutaneous tissues.

AB. Along with sebacious glands produces ear wax- Ceruminous gland. They produce ear wax by mixing their secretions with sebum.

AC. Epidermis - stratum corneum. It is the uppermost layer of epidermis and consists of dead cells.

AD. Pigment found in the red blood cell- Hemoglobin. it is responsible for the red color of RBCs.

AE. Produces oil (sebum) - sebaceous glands. They produce oils in the skin as a defence mechanism against microbes.

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