biod 151 Portage Learning /A&P 1 Module 7 exam and questions answered correctly

biod 151 Portage Learning /A&P 1 Module 7 exam and questions answered correctly true/false: epidermis is avascular - ANSWERStrue avascular definition - ANSWERSdoes not have direct blood supply layers of epidermis (4) - ANSWERSstratum corneum, stratum granulosum, stratum spinosum, stratum basale which layer of the epidermis is adhered to the basement membrane - ANSWERSstratum basale cell renewal of the epidermis - ANSWERScells of stratum basale divide and push towards the surface (30 days) & superficial layer of stratum corneum contains dead cells (come off with friction in 2 weeks) epidermal ridges - ANSWERSfingerprints where are epidermal ridges found - ANSWERSwithin stratum basale true/false: epidermal ridges are uniform - ANSWERSfalse- unique to each person cells of epidermis (5) - ANSWERSmelanocytes, keratinocytes, Langerhans cells, fibroblast cells, Merkel cells melanocytes - ANSWERSproduce melanin keratinocyes - ANSWERSproduce keratin Langerhans cells - ANSWERSimmune cells fibroblast cells - ANSWERSproduce collagen, give epidermis form and elastic property (holds cells together) what is a merkel cell - ANSWERSsensory receptors that respond to light touch layers of the dermis (2) - ANSWERSpapillary and reticular where is the papillary layer located - ANSWERSunder the basement membrane which layer of the skin has the main blood supply - ANSWERSdermis, reticular true/false: there is high water content in the dermis - ANSWERStrue true/false: the water content in the epidermis helps keep its shape - ANSWERSfalse- dermis contusion - ANSWERSbruise why is a contusion purple - ANSWERSdamage to the blood vessel in the dermis which causes blood to leak into the dermis, eventually reaching the epidermis and flaking off adipocytes - ANSWERSfat cells what is the purpose of adipcytes - ANSWERSinsulation and protection of muscle and bone tissue, insulation and protection of organs dermatomes - ANSWERSregion of the skin that detects sensory information from a single spinal nerve parts of the hair (2) - ANSWERSRoot and shaft location of the root - ANSWERSdermis three components of the integumentary system - ANSWERShair, skin, nails skin layers - ANSWERSepidermis, dermis, hypodermis superficial skin layer - ANSWERSepidermis middle skin layer - ANSWERSdermis deep skin layer - ANSWERShypodermis functions of integumentary system (4) - ANSWERS absorb UV for vitamin D production -sensory receptors and glands -protection from microorganisms -protection from temperature changes