PPT-Motor Neurone

Schwann Cells Myelin Sheath Node of Ranvier Motor neurones transmit impulses from the central nervous system to effector muscle or gland The myelin sheath is formed by Schwann Cells wrapping themselves around the axon along its length The enclosing sheath is made of lipids and proteins The sheath increases the speed of conduction of nerve impulses . The motor consists of three brushes namely common low speed and high Speed Two of the brushes will be supplied for different mode of operation Mode Supply to the Brushes Angle between the Brushes Low Speed CommonLow Speed 180 elect High Speed Common neuro. stuff . . Asfand . Baig. The ascending tracts carry sensory information from the peripheries to the primary somatosensory cortex in the . post-central . gyrus. of the cerebral cortex. Sensory lesions and examination. To know the structural and functional differences between different types of muscle fibre.. To know how muscle fibre type affects sporting performance.. To understand the function of motor units in muscle contraction.. To know the structural and functional differences between different types of muscle fibre.. To know how muscle fibre type affects sporting performance.. Types of Muscle Fibre. Slow Twitch Fibres (Type 1). Reflexes. L.O: To . know what a reflex is and how they work . Can you move your body without using your brain?. What is a reflex?. Reflex action is a rapid automatic and involuntary response to a stimulus which is not under the control of the brain.. Nervous system. Parts of our body we use to sense things are called . SENSE ORGANS. – eye, ear, mouth, skin, nose.. . Each SENSE ORGAN has special cells called . RECEPTOR CELLS. . Each receptor cell is sensitive to different things.. Michael Beierlein, PhD. Department of Neurobiology and Anatomy, MSE R442. McGovern Medical School. Houston, TX. Email: michael.beierlein@uth.tmc.edu. Cognition. Action. Environment. Senses. Motor control. Motor Neurone Disease (MND) is an uncommon disease that affects the brain and nerves. In MND your motor nerves become damaged and eventually stop working and you gradually lose your strength . There is currently no cure for Motor Neurone Disease . Spinal nerve and Reflex arc. . Dr. . Qazi. . Imtiaz. . Rasool. OBJECTIVES. Recall . various components . of somatic nervous system. .. Explain . structure. of typical spinal nerve. spinal cord. muscle (effector). pain receptors. AQA GCSE HOMEOSTASIS AND RESPONSE part 1. Information from receptors passes along cells (neurones) as electrical impulses to the central nervous system (CNS). 32 | the bmj When an upper motor neurone lesion is suspected, it may help to determine whether this is localised to the brainstem or cerebral cortex. Brainstem disease may present with vertigo Dr Sarah Hargreaves. Consultant Clinical Oncologist. Malignant Spinal Cord Compression. Spinal Cord Compression Pathway at UHBW. Clinical or radiological concern about spinal cord compression?. Contact on call oncology . it is situated in precentral . gyrus. (Broadman 4) and it is responsible for giving final motor commands. . The body is represented in contralateral way.. 2-The body is represented in upside down manner.. rd. edition. 2003; 2. Kandel et al. Principles of Neural Science. 4. th. edition. 2000; . 3. Tortora & Derrickson. Principles of Anatomy and Physiology. 12. th. edition. 2009; 4. Oxford Concise Medical Dictionary. 2.