BSC 2346 A&P Case Study Module 6 Complete Solution

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QUESTION 1 Donna, a 42-year-old mother of two, has been experiencing intermittent tingling and numbness in both of her feet. She has also had trouble holding a pen while writing. In the past few mo... nths, the tingling and numbness in her extremities seemed to subside on its own, so she was not very concerned. Recently, though, the symptoms have spread to her knees and thighs and are persisting. Yesterday, she stumbled when getting out of bed in the morning. When she tried to stand, her right leg was too weak to hold her weight and she fell again. She noticed that she scraped her right knee during the fall, but does not feel any pain from the wound. Donna notices that she has blurry vision and thinks that might be the reason she fell. All of the following indicate sensory deficits EXCEPT: Muscular weakness Tingling in her feet Numbness in her legs Blurry vision QUESTION 2 Donna does not feel the wound on her knee. In a normal situation, describe how this sensory input of a scraped knee would result in the feeling of pain. A scrape to the knee is categorized as a nociceptive pain, this kind of pain is caused by an injury to the tissues of the body such as a scrape, cut, burn, or fracture (myDr, 2012). Nociceptive pain tends to feel like aching, sharp, or throbbing pain that can be constant or intermittent (myDr, 2012). This pain is recognized by the body due to sensory receptors in the skin. A-beta nerve fibers then send signals through the spinal cord and central nervous system to the brain where the sensation of pain is registered, processed, and perceived (myDr, 2012). Reference: https://www.mydr.com.au/pain/pain-and-how-you-sense-it QUESTION 3 Donna has weakness in her right leg, but her left leg is functioning normally. Which components of the nervous system are involved with skeletal muscle movement? Be specific about how the motor impulse moves through the body. Muscle movement is controlled by the somatic nervous system. The motor impulse is sent from neuron to another throughout the body by synapse and also moving along motor fibers. A response is then carried out once the signal reaches the muscle. Reference: https://biologydictionary.net/somatic-nervous-system/ This study source was downloaded by 100000805030033 from CourseHero.com on 08-09-2022 06:08:33 GMT -05:00 https://www.coursehero.com/file/45195594/Module-6-Case-Studydocx/ QUESTION 4 Which of the following correctly defines a motor unit? A single muscle and its largest associated nerve All motor units are afferent neurons A single neuron and all the muscle cells it innervates A single muscle and all the neurons that innervate it QUESTION 5 Which of the following statements is true? Donna is experiencing problems related to sensory neurons only. Donna’s symptoms are most likely only related to the brain, and not peripheral nerves. Donna is experiencing problems related to motor neurons only. Donna is experiencing both motor and sensory deficits. QUESTION 6 List and describe any and all symptoms in Donna’s history that could be related to a pathology of her motor neurons. Holding a pen while writing which could be caused by damage to the nerves in the hand or could be caused by neuron syndrome. Reference: https://www.buoyhe [Show More]

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