Nerve Cell Physiology
... Steps of the action potential 4. Voltage-gated K+ channels open in response to the depolarization, but since their kinetics are much slower, the inward Na+ current (upstroke of the action potential) dominates initially. 5. K+ conductance begins to rise as more channels open. As the rise in membrane ...
... Steps of the action potential 4. Voltage-gated K+ channels open in response to the depolarization, but since their kinetics are much slower, the inward Na+ current (upstroke of the action potential) dominates initially. 5. K+ conductance begins to rise as more channels open. As the rise in membrane ...
Sympathetic - Perkins Science
... Parasympathetic Division Craniosacral Division Preganglionic fibers originate in the brain (midbrain, pons, medulla) and in sacrum; they extend to terminal ganglia, which are inside the organs they stimulate. Terminal ganglia supply postganglionic fibers to synapse with effector cells. ...
... Parasympathetic Division Craniosacral Division Preganglionic fibers originate in the brain (midbrain, pons, medulla) and in sacrum; they extend to terminal ganglia, which are inside the organs they stimulate. Terminal ganglia supply postganglionic fibers to synapse with effector cells. ...
Unit 12 Chp 49 Animal Sensory and Motor
... movement of the tropomyosin-tropinin complex and exposure of actin’s myosin binding sites. ...
... movement of the tropomyosin-tropinin complex and exposure of actin’s myosin binding sites. ...
Chapter 2
... long processes, the neurites (dendrites and axon, which conduct signals toward and away from the cell body, respectively). In the central nervous system (CNS), neuronal cell bodies and dendrites occur in gray matter. White matter consists largely of axons, most of which have myelin sheaths that serv ...
... long processes, the neurites (dendrites and axon, which conduct signals toward and away from the cell body, respectively). In the central nervous system (CNS), neuronal cell bodies and dendrites occur in gray matter. White matter consists largely of axons, most of which have myelin sheaths that serv ...
commissural axons
... in the floor plate, a structure of specialised glial cells that extends in the embryonic precursor of the spine – the neural tube – from the midbrain to its end. In the process, the tip of the axon – the growth cone – leads the way. The key question that Castellani’s study sought to answer was how a ...
... in the floor plate, a structure of specialised glial cells that extends in the embryonic precursor of the spine – the neural tube – from the midbrain to its end. In the process, the tip of the axon – the growth cone – leads the way. The key question that Castellani’s study sought to answer was how a ...
chapter summary
... the cortex. It also accomplishes a crude awareness of sensation and some degree of consciousness. The hypothalamus regulates many homeostatic functions, in part through its extensive control of the autonomic nervous system and endocrine system. The limbic system, which includes portions of the hypot ...
... the cortex. It also accomplishes a crude awareness of sensation and some degree of consciousness. The hypothalamus regulates many homeostatic functions, in part through its extensive control of the autonomic nervous system and endocrine system. The limbic system, which includes portions of the hypot ...
BOX 5.2 GOLDMAN-HODGKIN-KATZ EQUATION An equation
... The relative contribution of each ion is determined by its concentration differences across the membrane and the relative permeability (pK, pNa, pCl) of the membrane to each type of ion. If a membrane is permeable to only one ion, then the Goldman–Hodgkin–Katz equation reduces to the Nernst equation ...
... The relative contribution of each ion is determined by its concentration differences across the membrane and the relative permeability (pK, pNa, pCl) of the membrane to each type of ion. If a membrane is permeable to only one ion, then the Goldman–Hodgkin–Katz equation reduces to the Nernst equation ...
pharm chapter 8 [3-16
... In CNS, info not simply relayed from one area to another; receive signals from numerous sources and distribute axons widely (some neurons synapse with hundreds of thousands of other neurons) o Connections can be excitatory or inhibitory o 3 major motifs of CNS: long tract neuronal systems, local c ...
... In CNS, info not simply relayed from one area to another; receive signals from numerous sources and distribute axons widely (some neurons synapse with hundreds of thousands of other neurons) o Connections can be excitatory or inhibitory o 3 major motifs of CNS: long tract neuronal systems, local c ...
Part 1: Multiple choice
... B. synapse on muscles in the eye, neck, and head C. synapse on local circuit neurons and/or lower motor neurons <––– D. affect motor patterns only indirectly via their inputs to the basal ganglia. E. None of the above 2. A motor pool (as opposed to a motor unit) consists of A. all of the motor neuro ...
... B. synapse on muscles in the eye, neck, and head C. synapse on local circuit neurons and/or lower motor neurons <––– D. affect motor patterns only indirectly via their inputs to the basal ganglia. E. None of the above 2. A motor pool (as opposed to a motor unit) consists of A. all of the motor neuro ...
Nervous System 1
... different parts of your body so that they work together and are able to bring about the correct responses • Your nervous system coordinates your muscles, so that you can walk, run, write, read etc • When you smile the nervous system coordinates the muscles in your face ...
... different parts of your body so that they work together and are able to bring about the correct responses • Your nervous system coordinates your muscles, so that you can walk, run, write, read etc • When you smile the nervous system coordinates the muscles in your face ...
Endocrine and nervous system
... Sensory neurons to the brain cells called Interneurons. • The brain will then send an impulse through motor neurons to the necessary muscle or organs, telling it to contract. ...
... Sensory neurons to the brain cells called Interneurons. • The brain will then send an impulse through motor neurons to the necessary muscle or organs, telling it to contract. ...
Autonomic Nervous System
... Activities of the ANS - most effectors have dual innervation (innervation from both sympathetic and parasympathetic divisions) - structures that have dual innervations respond antagonistically to sympathetic and parasympathetic stimulation - the sympathetic division is said to be Fight or Flight - p ...
... Activities of the ANS - most effectors have dual innervation (innervation from both sympathetic and parasympathetic divisions) - structures that have dual innervations respond antagonistically to sympathetic and parasympathetic stimulation - the sympathetic division is said to be Fight or Flight - p ...
T 2.0
... called neurotransmitters, which send a signal across the synaptic gap to the receptors on the dendrite of another neuron. The chemical signal is converted to electricity and travels through the multiple pathway network of axons and dendrites at speeds of up to ...
... called neurotransmitters, which send a signal across the synaptic gap to the receptors on the dendrite of another neuron. The chemical signal is converted to electricity and travels through the multiple pathway network of axons and dendrites at speeds of up to ...
PPT File - Holden R
... *See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes. ...
... *See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes. ...
Slide 1
... target (for bipolar sensory neurons). Glial cells (gray) may also provide trophic factors. In contrast, central neurons (right side) receive synaptic input from many different types of neurons (AFF #1, 2, and 3), which may serve as a source of anterograde trophic support. Central neurons may also pr ...
... target (for bipolar sensory neurons). Glial cells (gray) may also provide trophic factors. In contrast, central neurons (right side) receive synaptic input from many different types of neurons (AFF #1, 2, and 3), which may serve as a source of anterograde trophic support. Central neurons may also pr ...
Chapter 14
... *See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes. ...
... *See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes. ...
Neurones & the Action Potential
... Write down anything you can remember from GCSE about the nervous system: Hints.. What are some of it’s roles? What are the structures involved in it? http://www.teachers.tv/video/21091 ...
... Write down anything you can remember from GCSE about the nervous system: Hints.. What are some of it’s roles? What are the structures involved in it? http://www.teachers.tv/video/21091 ...
Neuromuscular spindle The central nervous system continuously
... (1) nuclear bag fiber, consisting of a central sensory (non-contractile) bag-like region, and (2) the nuclear chain fiber, so-called because its central portion contains a chain-like array of nuclei. The distal portion of both nuclear bag and nuclear chain fibers consists of striated muscle with co ...
... (1) nuclear bag fiber, consisting of a central sensory (non-contractile) bag-like region, and (2) the nuclear chain fiber, so-called because its central portion contains a chain-like array of nuclei. The distal portion of both nuclear bag and nuclear chain fibers consists of striated muscle with co ...
The motor system Outline Muscles Reflexes Disorders of movement
... Treatments include medications that suppress the immune system or inhibit acetylcholinesterase (AChE) Muscular dystrophy Heritable condition involving the muscle protein _________________________. Premature muscle growth is followed by degeneration. _________________________ may provide effective tr ...
... Treatments include medications that suppress the immune system or inhibit acetylcholinesterase (AChE) Muscular dystrophy Heritable condition involving the muscle protein _________________________. Premature muscle growth is followed by degeneration. _________________________ may provide effective tr ...
Synaptic Competition during the Reformation of a Neuromuscular Map
... the location of neuromuscular junctions on the muscles. In a second series of experiments, the LTN was crushed, and 2 d later, the C6 branch was crushed, and the rostral sectors of the muscle (I–III) were removed. A narrow “bridge” of muscle under the LTN, and just slightly wider than the nerve, was ...
... the location of neuromuscular junctions on the muscles. In a second series of experiments, the LTN was crushed, and 2 d later, the C6 branch was crushed, and the rostral sectors of the muscle (I–III) were removed. A narrow “bridge” of muscle under the LTN, and just slightly wider than the nerve, was ...
Reflex Arc.
... • Synapse is “The junction across which a nerve impulse passes from an axon terminal to a neuron, muscle cell or gland” • Two types of Synapses: o Excitatory o Inhibitory ...
... • Synapse is “The junction across which a nerve impulse passes from an axon terminal to a neuron, muscle cell or gland” • Two types of Synapses: o Excitatory o Inhibitory ...
Teacher Guide
... pre-synaptic neuron – the neuron releasing the neurotransmitter receptors – special molecules on dendrites that taste each specific neurotransmitter. both neurotransmitter and receptor have to fit together like a lock and key synapse – a gap between two neurons forming the site of information transf ...
... pre-synaptic neuron – the neuron releasing the neurotransmitter receptors – special molecules on dendrites that taste each specific neurotransmitter. both neurotransmitter and receptor have to fit together like a lock and key synapse – a gap between two neurons forming the site of information transf ...
The basic Hebb rule
... Left: Difference between pre- and post-LFS response profiles (EPSP amplitudes) for one cell (top) and average of all cells Right:Time course of changes in response amplitude ...
... Left: Difference between pre- and post-LFS response profiles (EPSP amplitudes) for one cell (top) and average of all cells Right:Time course of changes in response amplitude ...
Peripheral Nervous System
... skin that a person can control – Sensory neurons which relay info about environment to CNS Reflex Arc – Motor neurons which initiate appropriate response ...
... skin that a person can control – Sensory neurons which relay info about environment to CNS Reflex Arc – Motor neurons which initiate appropriate response ...