LEC24 - Interdisciplinary School of Health Sciences Faculty...

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Interdisciplinary School of Health Sciences Faculty of Health Sciences University of Ottawa HSS 2101 B Health Problems (3 credits) Professor: Dr. Karen Phillips Office Hours: Templeton Room 215, Tuesdays 1:00-2:20pm After end of classes office hours will be moved to different date.
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Date Topic Tuesday, March 1 14. Diseases/Disorders of the Gastrointestinal Tract Chapter 9 Friday, March 4 15. Cardiovascular Disease I Chapter 6 Tuesday, March 8 16. Cardiovascular Disease II Chapter 7 Friday, March 11 17. Respiratory Disease Chapter 8 Tuesday, March 15 18. Pathology of the Reproductive System- Chapter 11 (Assignment Due 5%) Friday, March 18 19. Diseases Associated with Pregnancy Chapter 12 Tuesday, March 22 20. Renal Pathology Chapter 10 CLASS EVAL. Friday, March 25 21. Diabetes Chapter 12 Tuesday, March 29 22. Diseases of the Endocrine System Chapter 12 Friday, April 1 23. Pathology of the Nervous System I Chapter 13 Tuesday, April 5 24. Pathology of the Nervous System II Chapter 13 Friday, April 8 REVIEW Final Exam Lectures 14-24; 45%
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Neuron Parts  • Soma: body of the cell  • Dendrites: receive messages  • Axon: sends messages    A Neurons has three main parts.  The cell body, or soma, is a neuron's main  cellular space. The soma houses the  nucleus, in which the neuron's main  genetic information can be found.  The axon sends messages to other  neurons.  The dendrites receive messages from  other neurons.
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Three types of neurons:  1. motor neurons; 2. interneurons; 3.  sensory neurons
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Motor neurons- signal from brain to body part Ie. move arm now Sensory neurons- report back; receive input from environment, signal to brain to perceive sensory input
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Conduction Many axons are covered with a glistening fatty sheath, the myelin sheath . Myelin sheath is the greatly-expanded plasma membrane of an accessory cell, the Schwann cell . Gaps in myelin sheath- node of Ranvier , plays an important part in the propagation of the nerve impulse.
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Movement Disorders paralysis spinal cord injuries degenerative diseases Overview Overview Neurologist, neurosurgeon
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Muscle Paralysis Muscle no longer subject to voluntary control is paralyzed Causes: majority of paralysis results from stroke (cerebrovascular accident, CVA) or from trauma such as a spinal fracture (broken neck or back). Other: including infectious diseases (such as polio ), genetic diseases, autoimmune disease (such as amyotrophic lateral sclerosis, or ALS), and toxic conditions (such as botulism and paralytic shellfish poisoning).
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Paralysis temporary or permanent localized or widespread one-sided (unilateral) or two-sided (bilateral) affect the lower extremities (paraplegic) or upper and lower extremities (quadriplegic).
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Two types of paralysis: 1.Flaccid paralysis- disease of lower motor neurons or their fibers; eg. Poliomyelitis or if peripheral nerve supplying muscle is interrupted, reflex arc responsible for muscle tone
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This note was uploaded on 12/18/2011 for the course HSS 2101 taught by Professor Karenphillips during the Fall '11 term at University of Ottawa.

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LEC24 - Interdisciplinary School of Health Sciences Faculty...

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