Quiz 5: Intro to A & P and Integumentary System (UNITEK) - Questions and Answers

Quiz 5: Intro to A & P and Integumentary System (UNITEK) - Questions and Answers Merkel cells are A) found in the hypodermis. B) keratinocytes. C) found in the epidermis. D) melanocytes. As cells are pushed from the deeper portion of the epidermis toward the surface they A) are replaced by dividing cells from below. B) improve the supply of nutrients. C) tend to thrive. D) become dermal cells. By covering the whole body surface skin acts as a protective barrier and plays a role in A) excretion B) immunity C) circulation D) respiration Epidermis is characterized by being _______, whereas dermis is distinguished by being _______. A) the innermost layer of the skin; under the epidermis B) composed largely of connective tissue; composed of stratified squamous epithelial tissue C) the outermost layer of the skin; composed of stratified squamous epithelial tissue D) composed of stratified epithelial tissue; composed of connective tissue Subcutaneous tissue is A) composed of loose connective tissue. B) another term for the skin. C) less prominent in newborn infants. D) the site for sweat production. Skin does not include the A) epidermis. B) papillary layer. C) hypodermis. D) dermis. Adipose tissue in the hypodermis A) varies in amount from one region to other body regions B) helps to lower body temperature C) provides protection against infection D) is a double layer in infants The integumentary system has many functions, one of which is A) protection from water loss. B) production of Vitamin E. C) detection of painful stimuli. D) Both A and C. The outer, epithelial layer of the skin is called the A) dermis. B) epidermis. C) hypodermis. D) mesodermis. Which of the following functions is associated with the skin? A) production of fat. B) production of vitamin C. C) regulation of body pH. D) protection against ultraviolet radiation of the sun. The dermis A) contains no blood vessels. B) functions as padding and insulation. C) is responsible for most of the skin's structural strength. D) is divided into three distinct layers. The layer of epidermis that undergoes mitosis and forms new epidermal cells is the stratum ________ . A) basale B) granulosum C) lucidum D) corneum The sloughing off of older cells occurs in the stratum A) corneum. B) basale. C) spinosum. D) granulosum. The outer layers of the epithelium harden due to deposition of a waterproof protein called A) actin B) keratin C) melanin D) adipose Which layer of the skin causes the formation of "fingerprints"? A) Epidermis B) Papillary layer of the dermis C) Reticular layer of the dermis D) The hypodermis Which layer of the skin causes the formation of "fingerprints"? A) Epidermis B) Papillary layer of the dermis C) Reticular layer of the dermis D) The hypodermis A plastic surgeon would most likely make a skin incision: A) Perpendicular to the cleavage lines. B) Around the cleavage lines. C) Parallel to the cleavage lines. D) None of the above. Which of the following epidermal cells functions in immunity? A) Langerhans cells B) Merkel's cells C) keratinocytes D) melanocytes Which of the following connects the skin with muscles or bones?