Biod 151 Module 7 Laboratory Quiz Study Guide - Fully Updated Solutions

Biod 151 Module 7 Laboratory Quiz Study Guide - Fully Updated Solutions Identify the region and the layer of skin that is highlighted in blue. (Also indicated by the arrow, below) *NOTE: To receive full credit you must label two regions. - answer - Stratum granulosum; Epidermis A- Identify the sensory cell receptor highlighted in blue, below, also indicated by the arrow.B- What sensory information is detected by this type of receptor? - answer - A) Pacinian corpuscleB) Detects pressure (mechanoreceptor) The layers of the epidermis, from superficial to deep are: - answer - Stratum corneum, stratum granulosum, stratum spinosum, stratum basale. Exocrine glands secrete ______; Endocrine glands secrete ____. - answer - A. for body-wide distribution, into an epithelial lining B. into an epithelial lining, for body-wide distribution C. through a duct, into the bloodstream D. into the bloodstream, through a duct E. A&D Correct! F. B&C Which of the following is true regarding the epidermis: - answer - It receives its blood supply from the deeper dermis layer. Match the cell with its single best description, using each description only once. Keratinocytes Fibroblasts Melanocytes Langerhans cells - answer - Keratinocytes Produces a protein to protect the skin Fibroblasts Produces collagen Melanocytes Produces a pigment that absorbs UV rays Langerhans cells Assists in immune responses A person touches a hot cup of coffee. What type of sensory organ detects this information? - answer - Thermoreceptor Main blood supply for the skin is found in what layer? - answer - Dermis (reticular region) In your own words, how can the skin be used to determine if a person is dehydrated? - answer - Skin can be pinched to see if a person is dyhydrated. If the skin does not snap back then the person is dehydrated. What is the name and function of the structure below? (Highlighted in blue, also indicated by the arrow) - answer - Arrector pili, a smooth muscle which connects to each hair follicle. It contracts when the body is cold or experiences emotional responses. What is the name and function of the structure below? (Highlighted in blue, also indicated by the arrow) - answer - sebaceous gland. It's function is to secrete oil( sebum) to hair and skin. All of the following are functions of skin except: - answer - Produce vitamin K The thickest region of the dermis is the: - answer - Reticular The hypodermis is comprised mainly of: - answer - Adipocytes What is a contusion? - answer - Damage to a broken blood vessel Information from a dermatome travels to: - answer - The brain This injury, seen below, is best described as what degree of burn? Explain what layer/s of skin are damaged in this type of burn. - answer - Second-degree burn, also called a partial thickness burnThe epidermis and dermis layers of the skin was damaged.(Optional: The burned area burned becomes red and painful, forming blisters) Answer the following clinical case scenario: Your patient was injured in a house fire. The skin sustained damage through the epidermis, dermis, hypodermis, and some muscle tissue.1- What degree of burn best describes your patient's injury?2- Would your patient experience pain in the injured area? Why or why not? - answer - 4th degree-No, fourth-degree burns damage the epidermis, the dermis, the hypodermis, and underlying tissue such as muscle or bone. Because the nerve endings are destroyed there is no sensation in the affected burn area. This part of a hair contains blood and nervous supply: - answer - bulb Hair is made up of: - answer - Dead epidermal cells converted to keratin Nails are hard, dead cells which have been converted to ____ - answer - Keratin The nail _____ is a portion of the nail not visible. - answer - root Why would a person receive a skin graft? - answer - A person would need a skin graft because the skin is too damage for repair. Grafting skin from a healthy portion of the persons skin would be best. Grafting helps