mpatterson_02postlab_101217.docx - Name Mariah Patterson...

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Name: Mariah Patterson Module 02 Lab Worksheet: The Integument Part 01 Procedure: Anatomy and Histology of the Skin 1. Utilizing the anatomical models, differentiate the characteristic differences between the epidermis and dermis. Please note your observations below: The hypodermis is a thin layer compared to the dermis. The hypodermis is made up of what appear to be the same type of cells. The dermis is a thicker layer with larger structures rooted in the bottom (reticular) layer of it. 2. Locate the histological slides of the skin and utilizing a microscope, differentiate the characteristic differences between the epidermis and dermis. Please not your observations below: The papillary layer has a lot of space in between the bundles of cells. The reticular layer is very thick and stringy. The hypodermis was composed of globules that appeared large and densely packed. Part 02 Procedure: Integument Sensory Receptors There will be a number of work stations set up for this portion of the lab. Please circulate through the lab stations as they are open and record your results. Two Point Threshold Fingertip Palm Forearm Upper Arm Neck 2mm 3mm 5mm 10mm Touch Receptor Adaptation Time Distal Forearm Proximal Forearm 1 penny (time in secs) 2 pennies (time in secs) 3 pennies (time in secs) Wood’s Lamp Examination This mini-experiment will require the use of a Wood’s lamp, which is a very expensive piece of medical equipment and should be handled and used with extreme care and caution. This skin examination will need to be completed in a dark room; your lab instructor should designate a particular room where absolute darkness can be achieved. Record your results of what you observed in the space below:
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For picture A there were white spots found on the skin that appeared to be dead cells. The next image we viewed (B) had a concentrated spot of oiliness and a lot of comedomes surrounding that. In image A I observed bright whit patches of depigmentation on the skin. Finally, in image D there appeared to be depigmentation, or sun damage, of the face. ABCDE Rule This portion of the lab will utilize the ABCDE rule to assess two different moles or abnormal skin spots on your and/or your lab partner’s exposed arm/leg, face, or neck. Use a magnifying glass to assist your examination. Utilizing the ABCDE rule, please make your observations on a mole or abnormal skin spot: A: The skin spot appeared symmetric. B: The border of the spot was faded and not defined. C: The color was a light faded brown. D: The diameter of the skin spot was roughly 3 millimeters. E: The spot was flat, not elevated. It recently appeared within the past 3 years, but has not evolved since its first appearance.
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