Fall 2017 BIO205 49. The arrector pili is: a· the cause of penile dysfunction b.
ID: 3474949 • Letter: F
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Fall 2017 BIO205 49. The arrector pili is: a· the cause of penile dysfunction b. also known as the eponychium c. a muscle that causes the skin por d. associated with the hair follicle and causes the shaft to stand up e. a kind of sweat gland es to open up and shed heat Collagen fibers are thick' protein strands, found in connective tissues and give tendons a degree of "toughness" a. true b. false 51. Which protein gives the epidermis its toughness and water repelling ability? a. carotene b. corneum c. keratin d. melanin e. adipose 52. Which of the following is not a function of the integument? a. Acts as a physical barrier b. Stores calcium in the dermis c. Homeostasis of body temperature d. Participates in pathogen defense e. Excretes water and salts 53. An osteoblast may become a/anwhen it gets trapped in matrix. a. osteoclast b. osteon c. osteoprogenitor d. fibroblast e. osteocyte 54. When a broken bone is sticking out through the skin it is called: a. green-stick b. simple c. incomplete d. compound e. complete 55. Small, thin strands of spongy bone are called a. canaliculi b. trabeculae c. mesenchyme d. sesamoids e. chondroblasts 10Explanation / Answer
49. D. associated with the hair follicle and causes the shaft to stand up
50. True , tendon is tough fibres connective tissue that usually connects muscle to bone. they are made up of collagen.
51.C. keratin, is a protein that protects epithelial cells from damage and stress and are insoluble in water.
52. B. Store calcium in dermis, integument has a function of to retain fluid, protect against disease, eliminate waste product and maintain body temperature.
53. A. Osteoclast.
54.compound, also called open fracture in which bone penetrates through the skin.
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