What is a partial thickness burn? {Ans: first degree( epidermis)- redness, pain, slight edema, caused by sunburn or brief exposure to cold or hot objects; Heal within a week or without scarring. Or second degree- damage to the epidermis and dermis but not the underlying tissue; redness, pain, edema, blistering with healing that can take at least two weeks without scarring. If the burn goes deep into the dermis it can take up to several months to heal and may cause scarring.}What is osteogenesis imperfecta? {Ans: Brittle bone disease/ a defect of bone formation resulting in weak bone due to abnormally collagen.}Which of the following is true? Select one: a. Muscle fatigue has no influence on the force of contractions. b. A threshold stimulus will cause contraction of a muscle fiber. c. A subthreshold stimulus causes a muscle contraction. d. Motor units do not obey the "all or none" law. e. A threshold stimulus will not affect motor units. {Ans: b. A threshold stimulus will cause contraction of a muscle fiber.}The anatomical arm refers to the part of the upper limb from the A. shoulder to the wrist. B. elbow to the wrist. C. shoulder to the