1) Epidermal cell that acts as a macrophage to activate our immune system to destroy foreign substances is a) Langerhan's cell b) Keratinocyte c) Melanocyte d) Terminal hair 2) Epidermal cell functions as touch receptors in association with sensory nerve endings is a) Melanocyte b) Merkel cell c) Stratum basale d) Dermal papillae 3) Which layer of the epidermis is only found in thick skin? a) Shaft and root b) Stratum basale c) Stratum lucidum d) Stratum granulosum 4) What are the peglike projections on the superior surface of the dermis that indent the overlying epidermis? a) Dermal papillae b) Papillary and reticular c) Pacini corpuscle d) Meissner's corpuscles 5) Cell deep in the dermis that is capable of detecting pressure is a) Meissner's corpuscles b) Dermal papillae c) Pacini corpuscle d) Stratum lucidum 6) Which layer of the epidermis is made up of a weblike system of intermediate filaments with flattened keratinocytes that appear "spiny" a) Stratum lucidum b) Stratum granulosum c) Stratum spinosum d) Stratum basale 7) Yellow to orange pigment that is most obvious in the palms of the hands and soles of the feet is a) Carotene b) Hair root c) Cyabosis d) Eumelanin 8) Produce true sweat plus fatty substances and proteins, found in the axillary and anogenital areas of the body is a) Ceruminous gland b) Eccrine (merocrine) sweat gland c) Apocrine sweat gland d) Terminal hair 9) Keratinocytes produce keratin which is a) Involved in immune response b) A tough fibrous protein that provides protection c) Arise from bone marrow d) Produce the pigment melanin that protects against damage by ultraviolet radiation. 10) Dermis is the a) Contains 4 major layers. b) Consists of stratum basale, stratum spinosum and stratum granulosum c) Deepest layers of the skin and 10 -20 times thicker than epidermis.  d) Composed of connective tissue containing collagen and elastic fibres.

Integumentary system part 3

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