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5 Written questions

5 Matching questions

  1. Dermis
  2. Sweat
  3. Keratin
  4. Sebum
  5. Sudoriferous (sweat) gland:
  1. a a tough, insoluble protein found in tissues such as hair, nails, and epidermis of the skin.
  2. b a clear secretion that is primarily water plus some salts (sodium chloride), vitamin C, traces of metabolic wastes (ammonia, urea, uric acid), and lactic acid(the chemical that accumulates during vigorous muscle activity) sweat is acidic pH from 4-6. Sweat reaches the surface through ducts that opens as a pore.
  3. c the deep layer of the skin; composed of dense, irregular connective tissue
  4. d the oily secretion of sebaceous glands.
  5. e the glands that produce a saline solution called sweat.

5 Multiple choice questions

  1. Cells that produce melanin.
  2. membrane that forms the linings of body cavities open to the exterior (digestive, respiratory, urinary, and reproductive tracts)
  3. the skin and its accessory organs.
  4. a smooth muscle attached to hair follicles that causes "goose bumps" to appear on the skin when contracted
  5. slightly slanted compound structures. The inner epidermal sheath is composed of epithelial tissue and forms the hair. The outer dermal sheath is actually dermal connective tissue. Dermal region supplies blood vessels to the epidermal portion/reinforces it.

5 True/False questions

  1. Stratum basalethe outermost layer, 20 to 30 cell layers thick and accounts for ¾ of the epidermal thickness. Shinglelike dead cell remnants, full of keratin. The layer provides a durable overcoat for the body. Protects deeper cells from hostile environment(air) and from water loss. Resists biological, chemical, and physical assaults. Layer is replaced by cells produced by the division of the deeper stratum basale cells. New epidermis every 25 to 45 days. (flakes off as dandruff)

          

  2. Peritoneum .the membranous sac enveloping the heart.

          

  3. Pericardiumthe membranous sac enveloping the heart.

          

  4. Cutaneous membranethe skin; composed of epidermal and dermal layers

          

  5. Naila scale-like modification of the epidermis that corresponds to the hoof or claw of other animals. Has a free edge, a body(visible attached portion), and a root (embedded in the skin).