PPT-Nerve Impulses Chloe Henry, Delina Tsegay

Resting Membrane Conditions What is the resting state of a neuron When the nerve cell is not conducting an impulse it is in resting state This makes the membrane of the axon permeable of K. Sexual-Gender (Dis)-Symmetry?. Daphnis & Chloe 2. 2013-12-10. Agenda. Finnis. Is Right — Right?. Critical Thinking for the Twenty-First Century. Longus’ . Daphnis & Chloe. Recap & Update. How signals are sent through the nervous system. Synapse. Synapse. = Junction between . two. connecting neurons. Synaptic cleft-between the neurons,. signal has to go across this space. Signals need to be sent . Sexual-Gender (Dis)-Symmetry?. Daphnis & Chloe 1. Syrinx (pan pipe). Pan and . Syrinx. , . Godecharle. (1804). Agenda. Longus’ . Daphnis & Chloe. Introduction. Nature versus Culture. Winkler on . Sensation. Sensory Receptors detect changes in our body and surroundings. Trigger nerve impulses. Travels to CNS for interpretation. Perceive a sensation. Types of Receptors. Chemoreceptors: changes in chemical concentration of substances. Membrane Potential . = difference in electrical charges between inside & outside of neuron. http://highered.mheducation.com/sites/0072495855/student_view0/chapter14/animation__the_nerve_impulse.html. 4. th. Year medical Student. Kaylea_clark@yahoo.co.uk. What to do today…. Actually manage to get through everything. Physiology of Breathing. Pneumonia. Eat Chocolate . Lung Cancer. Cystic . Fibrosis. Sexual-Gender (Dis)-Symmetry?. Daphnis & Chloe 1. Syrinx (pan pipe). Pan and . Syrinx. , . Godecharle. (1804). Agenda. Longus’ . Daphnis & Chloe. Introduction. Nature versus Culture. Winkler on . Spinal Cord. 2 Spinal . cord dorsal view figure 12.29, pg. 467. . . . 3 Spinal . cord. 4. Gray matter of spinal cord. Dorsal horns – associated with afferent, sensory nerve impulses from receptors, C1-L5 neuron cell bodies bundled in dorsal root ganglion . Follow-Me – . iQuiz. Q. What is the function of the semi-circular canals?. Air. Brings impulses from retina; Brings impulse to brain. Ear. Detect colour. Convert light into nerve impulses; Image forms on it. Chapter 6: The Nervous System. Our nervous system has the ability to simultaneously direct multiple functions taking place in in our bodies.. Two major divisions:. Central nervous system (CNS). . It directs the activity of the entire nervous system.. Day 5. Diencephalon. Located between the cerebral hemispheres and above midbrain. Composed largely of gray matter. Surrounds 3. rd. ventricle. Includes:. Thalamus. Hypothalamus. Optic tracts. Optic . Provides links from and to world outside body. All . neural structures outside brain. Sensory receptors. Peripheral nerves and associated ganglia. Efferent motor endings. . Sensory Receptors. Specialized to respond to changes in environment (. Senses –General and Special. General. Visceral sensations. Hunger, thirst. Touch. Touch / tactile, pressure. Temperature. Hot/cold. Pain. Receptors inside and surface of body. Proprioception. Sense of body movement and position. Lecture 4. Objective for this lecture. Expound the nerve fiber morphology, its myelination, and the nerve fiber classification. . The nerve: The human nervous system contains about (100 billion) neurons. .