PPT-Neurones and the

Reflex Arc NAT 5 ONLY PUPIL NOTES By the end of the lesson you will be able to Describe how a neurone is suited to its function Describe the flow of information through a reflex arc. Learning Objectives. To understand how an action potential is propagated along an axon.. To understand the difference between the propagation of action potentials in . myelinated . and . unmyelinated. 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. . Learning . Ojectives. To understand the structure and function of neurones.. To learn that there are different types of neurones in the human body.. Neurones. Neurones are amongst the largest cells in the body (especially in terms on length).. Reverend Dr David Taylor. dcmt@liv.ac.uk. http://www.liv.ac.uk/~dcmt. What do you know about breathing?. We all do it. It involves the cardiovascular system as well…. It . is a process of . allowing . Schéma d’un neurone:. (. www://svt.ac-dijon.fr). Quel est le rôle des neurones?. Les neurones (ou cellules nerveuses) sont des cellules hautement différenciées, spécialisées dans la . communication intercellulaire. B1.1 Classification. Biologists classify . living organisms . according . to how closely they are related to . one another. . Species. . – groups of organisms that have many features in . common. Genus. The cells of the nervous system and neurotransmitters at . synapses. (a) Structure and function of neurones. (c) Function of converging, diverging and reverberating pathways. NS cells and neurotransmitters at synapses. The cells of the nervous system and neurotransmitters at . synapses. (a) Structure and function of neurones. (c) Function of converging, diverging and reverberating pathways. NS cells and neurotransmitters at synapses. 24/03/2015. Dr. Omary Chillo (MD, PhD). 24/03/2015. Dr. Omary Chillo (MD, PhD). 24/03/2015. Dr. Omary Chillo (MD, PhD). Anterior Pituitary. Adeno. hypophysis. Posterior Pituitary. Neuro. hypophysis. Epitheloid. 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). 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.