BIO201 Topic 6: Integumentary System graded quiz : Grade 35.00 out of 35.00 (100%) 2021

BIO201 Topic 6: Integumentary System graded quiz •BIO201_MH_V3 •Topic 6: Integumentary System Question 1 The figure illustrates keratinization in the epidermis. What layer of the epidermis is "A"? Select one: a. stratum spinosum b. stratum corneum c. stratum basale d. stratum lucidum e. stratum granulosum Question 2 Which of the following statements is true? Select one: a. In males, the hairs of the beard are vellus hairs. b. Both vellus and terminal hairs are pigmented. c. The majority of hair on the chest is vellus hair. d. At puberty, much of the vellus hair is replaced with terminal hair. e. Hair in the axillary region is vellus hair after puberty. Question 3 What does structure "B" represent on the diagram? Select one: a. hair follicle b. arrector pili c. epidermis and dermis d. hypodermis e. sebaceous gland Question 4 Cedric slipped and cut his finger. The cut bled, but did not penetrate to the hypodermis. The deepest layer penetrated was the Select one: a. stratum spinosum. b. stratum granulosum. c. stratum basale. d. stratum corneum. e. papillary layer of the dermis. Question 5 The epidermal layer that is present in the nail bed and the nail matrix is the Select one: a. stratum corneum. b. stratum lucidum. c. stratum basale. d. stratum spinosum. e. stratum lunula. Question 6 If you accidentally cut your arm and see connective tissue and fat, which layer(s) was/were cut? Select one: a. stratum corneum b. stratum basale c. dermis d. hypodermis e. all of these layers Question 7 What protein is found in the nails, hair, and epidermis? Select one: a. melanin b. keratin c. carotene d. elastin e. collagen Question 8 When the skin develops a reddish color due to a temporary increase in blood flow, the condition is called: Select one: a. erythema b. cyanosis c. jaundice d. albinism Question 9 The length of hair is determined by the Select one: a. size of the hair bulb. b. angle of the hair root. c. rate of hair growth. d. length of the resting stage. e. age of the person. Question 10 Which of the following statements regarding melanin is true? Select one: a. During pregnancy melanin production is increased. b. Both melanocytes and keratinocytes produce melanin. c. In Addison's disease, less melanin is produced. d. Men produce more melanin than women. e. Melanin is a white pigment. Question 11 The vesicles that contain melanin are called ______. Select one: a. melanosomes b. melanocytes c. keratinocytes d. Golgi apparatus Question 12 Which of the following statements concerning vitamin D is false? Select one: a. Vitamin D begins its synthesis in the skin when the skin is exposed to ultraviolet light. b. Vitamin D causes the kidney to excrete calcium. c. Vitamin D is necessary for the uptake of calcium from the intestine. d. Vitamin D is necessary for the formation of bones and teeth. e. Vitamin D is important for calcium homeostasis. Question 13 By reducing body temperature during hot weather, skin helps to maintain Select one: a. body temperature homeostasis. b. body structure. c. blood volume. d. brain activity. e. blood pH. Question 14 What type of burn appears white or black with no immediate pain? Select one: a. first-degree b. second-degree c. third-degree d. fourth-degree e. partial-thickness Question 15 Squamous cell carcinoma is the second most common type of skin cancer that affects the _____ layer of the skin. Select one: a. reticular layer of dermis b. stratum spinosum c. stratum granulosum d. stratum basale e. stratum corneum Question 16 A burn classified as partial thickness could be _____. Select one: a. first or second degree b. second or third degree c. epidermal or dermal d. thin or deep Question 17 Which of the following is NOT a complication of a major burn? Select one: a. fever b. electrolyte imbalance c. hypermetabolic state d. weight loss e. decreased protein demand Question 18 Which of the following is NOT associated with impetigo? Select one: a. Bacterial infection b. Skin blisters with pus c. Herpes Simplex II d. Affects children e. Yellowish crust Question 19 Which type of skin cancer is the most deadly? Select one: a. basal cell carcinoma b. squamous cell carcinoma c. melanoma d. Kaposi's sarcoma e. psoriasis Question 20 The effects of aging on the skin include all of the following except: Select one: a. thinner epidermis b. reduction in collagen and elastin c. loss of fat from the subcutaneous tissue d. increases in sebaceous gland activity