Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Chapter 32, Problem 3CT
Hansen's disease, also known as leprosy, arises when bacteria infect the Schwann cells that wrap around axons of peripheral nerves to form a myelin .shealth. Attacks by the immune system on the bacteria-infected glial cells causes a loss of myelin in peripheral nerves. How is Hansen's disease similar to multiple sclerosis? Why do the symptoms differ? Why are people with Hansen's disease unusually prone to injuring themselves?
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Describe the function of local currents in the conduction of action potentials down a myelinated axon. What happens in demylinating diseases?
Jack is a 27-year-old African American man. He has been diagnosed with multiple sclerosis 3 years ago and has struggled with it since then. He has noticed a slow decline in his function. He he has not been able to work full time and moved back home with his parents. Because of his change in health status, he has experienced bouts of depression. Due to the unsteadiness on his feet, Jack fell at his job and was injured. As a result, his work duties were reduced. He was in a three-year relationship but she broke up with him when he was diagnosed. She said Jack's diagnosis was more than she could handle. Apply the questions below to the case study. 1a.How might each of these disability-related factors influence Jack's multiple sclerosis? 1b. When answering the question, consider how the diagnosis and these factors and how would these factors influence how Jack responds to his illness. -Functionality versus organicity of Multiple Sclerosis - Level of severity - Degree of visibility…
Briefly describe what happens to the myelin sheath and how it disrupts nerve function in patients with Multiple Sclerosis.
Chapter 32 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
Ch. 32 - Prob. 1DAACh. 32 - Prob. 2DAACh. 32 - Prob. 3DAACh. 32 - Prob. 4DAACh. 32 - ___ relay messages from the brain and .spinal cord...Ch. 32 - When a neuron is at rest, ________ . a. it is at...Ch. 32 - An action potential begins when ___ . a. a neuron...Ch. 32 - Most human axons have a myelin sheath that ___ ....Ch. 32 - Neurotransmitters are released. by ___ . a. axon...Ch. 32 - What chemicals is released by the axon terminals...
Ch. 32 - Which neurotransmitter is important in...Ch. 32 - Skeletal muscles are controlled by ______ . a....Ch. 32 - When you sit quietly on the couch and read, output...Ch. 32 - In the central nervous system, all synapses are in...Ch. 32 - The brain and spinal cord develop from the...Ch. 32 - An injury ___ in the spinal cord can lead to...Ch. 32 - ___ deep in the brain plays a role in emotion. a....Ch. 32 - Commands to move your right arm start in the...Ch. 32 - Prob. 15SQCh. 32 - Prob. 1CTCh. 32 - Most tumors that originate in the brain are not...Ch. 32 - Hansen's disease, also known as leprosy, arises...
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