Biological Basis of Behavior
... The Parts of the Neuron 1. Dendrites - receive incoming messages to the nerve cell - resemble tree branches 2. Cell Body - contains nucleus ...
... The Parts of the Neuron 1. Dendrites - receive incoming messages to the nerve cell - resemble tree branches 2. Cell Body - contains nucleus ...
THE NERVOUS SYSTEM - Fox Valley Lutheran High School
... at the next point of the membrane Unlike dominoes, it can restore itself. The mov’t. is only in one direction because Na gates will not open. The Role of Myelin Made of lipids & proteins, it forms an insulated sheath, wrapping around the the axon. Myelin has small nodes, gaps, between adjacent sheat ...
... at the next point of the membrane Unlike dominoes, it can restore itself. The mov’t. is only in one direction because Na gates will not open. The Role of Myelin Made of lipids & proteins, it forms an insulated sheath, wrapping around the the axon. Myelin has small nodes, gaps, between adjacent sheat ...
K - Cloudfront.net
... from neuron to neuron represent a set of dominoes falling down? Write a paragraph or bullet points or draw a flow chart. ...
... from neuron to neuron represent a set of dominoes falling down? Write a paragraph or bullet points or draw a flow chart. ...
Complete Nervous System Worksheet
... -higher concentration of potassium ions (K+) inside the axoplasm (axoplasm = cytoplasm of the axon) than outside and a higher concentration of sodium ions (Na+) outside the axoplasm than inside. -membrane of the axon impermeable to sodium ions (Na+) (Sodium gates are closed) -membrane permeable to p ...
... -higher concentration of potassium ions (K+) inside the axoplasm (axoplasm = cytoplasm of the axon) than outside and a higher concentration of sodium ions (Na+) outside the axoplasm than inside. -membrane of the axon impermeable to sodium ions (Na+) (Sodium gates are closed) -membrane permeable to p ...
Nervous System
... presynaptic cell and cell body or dendrite of postsynaptic cell electrical synapses: transmit action potential directly between neurons - formed by gap junctions between cells **chemical synapses: use chemicals to transfer impulses when action potentials are not transmitted from one neuron to th ...
... presynaptic cell and cell body or dendrite of postsynaptic cell electrical synapses: transmit action potential directly between neurons - formed by gap junctions between cells **chemical synapses: use chemicals to transfer impulses when action potentials are not transmitted from one neuron to th ...
Nerves, Hormones and Homeostasis
... An action potential in one part of a neuron causes an action potential to develop in the next section of a neuron This develops because of diffusion of the sodium ions between the region with an action potential and the region at the resting potential. When the local current makes the potential rise ...
... An action potential in one part of a neuron causes an action potential to develop in the next section of a neuron This develops because of diffusion of the sodium ions between the region with an action potential and the region at the resting potential. When the local current makes the potential rise ...
Cell Biology of the Nervous System
... keep neurons alive and promote neuron process outgrowth • Radial glia – form a framework for migration of neurons during development ...
... keep neurons alive and promote neuron process outgrowth • Radial glia – form a framework for migration of neurons during development ...
This Week in The Journal - Journal of Neuroscience
... of pyramidal cell axons produced LTP in parvalbumin-expressing axo-axonic interneurons and basket cells, which innervate pyramidal cells perisomatically. But, the same stimulation produced LTD in bistratified cells, ...
... of pyramidal cell axons produced LTP in parvalbumin-expressing axo-axonic interneurons and basket cells, which innervate pyramidal cells perisomatically. But, the same stimulation produced LTD in bistratified cells, ...
Biology 251 Fall 2015 1 TOPIC 4: ACTION POTENTIALS AND
... pump, repeated action potentials would eventually erode separation of Na+ and K+ III. The Neuron and Conduction of Action Potentials ...
... pump, repeated action potentials would eventually erode separation of Na+ and K+ III. The Neuron and Conduction of Action Potentials ...
FIGURE LEGENDS FIGURE 3.1 Typical morphology of projection
... among the myelin sheath, the Schwann cell cytoplasm, and perhaps the axon as well. FIGURE 3.10 Astrocytes appear stellate when their intermediate filaments are stained (red, GFAP), but membrane labeling (green, membrane-associated EGFP) highlights the profusion of fine cellular processes that interc ...
... among the myelin sheath, the Schwann cell cytoplasm, and perhaps the axon as well. FIGURE 3.10 Astrocytes appear stellate when their intermediate filaments are stained (red, GFAP), but membrane labeling (green, membrane-associated EGFP) highlights the profusion of fine cellular processes that interc ...
Neural stem cells
... • A series of symmetric and/or asymmetric cell divisions, called a cell lineage, gives birth to each of the specialized cell types found in a multicellular organism. • Programmed cell death (PCD) occurs during normal development and in response to infection or poison. A series of specific programmed ...
... • A series of symmetric and/or asymmetric cell divisions, called a cell lineage, gives birth to each of the specialized cell types found in a multicellular organism. • Programmed cell death (PCD) occurs during normal development and in response to infection or poison. A series of specific programmed ...
Nervous System Notes
... 1. Unequal distribution of ions across the plasma membrane. (ECF is rich in Na+ and Cl- ions the cytoplasm is high in K+) 2. Relative permeability of the plasma membrane to Na+ and K+. - In a resting neuron or muscle fiber, the permeability of the plasma membrane is 50 to 100 times greater to K+ tha ...
... 1. Unequal distribution of ions across the plasma membrane. (ECF is rich in Na+ and Cl- ions the cytoplasm is high in K+) 2. Relative permeability of the plasma membrane to Na+ and K+. - In a resting neuron or muscle fiber, the permeability of the plasma membrane is 50 to 100 times greater to K+ tha ...
Exercise 17
... Collaterals: branches of axons from neurons Axon Hillock: a structure through which the electrical current travels before moving to another neuron Axonal Terminals: the point where the axon ends; store the neurotransmitter chemical Synaptic Cleft: a tiny gap that separates each axonal terminal There ...
... Collaterals: branches of axons from neurons Axon Hillock: a structure through which the electrical current travels before moving to another neuron Axonal Terminals: the point where the axon ends; store the neurotransmitter chemical Synaptic Cleft: a tiny gap that separates each axonal terminal There ...
CH 48 Nervous systemnotes2010
... 2. bipolar disorder- mood swings from high to low ; can cause increased bouts of energy with creative ideas, overtalking, increased risk behaviors ( some famous artists and musicians were believed to have p produced their best work during this manic phase). The depressive stage lowers ability to fee ...
... 2. bipolar disorder- mood swings from high to low ; can cause increased bouts of energy with creative ideas, overtalking, increased risk behaviors ( some famous artists and musicians were believed to have p produced their best work during this manic phase). The depressive stage lowers ability to fee ...
The Nervous System
... • Membrane potentials arise from differences in ion concentrations between a cell’s contents and the extracellular fluid. • An action potential is an all-or-none change in the membrane potential. • Action potentials travel along an axon because they are self-propagating. • Chemical or electrical com ...
... • Membrane potentials arise from differences in ion concentrations between a cell’s contents and the extracellular fluid. • An action potential is an all-or-none change in the membrane potential. • Action potentials travel along an axon because they are self-propagating. • Chemical or electrical com ...
PD233-Lecture6
... Potential difference leads to flow of current flow when two points with different electric potential are connected with conducting media. ...
... Potential difference leads to flow of current flow when two points with different electric potential are connected with conducting media. ...
CH2
... in nonmyelinated axons (thereby slowing conduction speed) In myelinated axons, the AP jumps from node to node: AP depolarizes membrane at each node ...
... in nonmyelinated axons (thereby slowing conduction speed) In myelinated axons, the AP jumps from node to node: AP depolarizes membrane at each node ...
CH2.
... in nonmyelinated axons (thereby slowing conduction speed) l In myelinated axons, the AP jumps from node to node: AP depolarizes membrane at each node l ...
... in nonmyelinated axons (thereby slowing conduction speed) l In myelinated axons, the AP jumps from node to node: AP depolarizes membrane at each node l ...
The Nervous System - Volunteer State Community College
... concentrations between a cell’s contents and the extracellular fluid. All cells have an electrical potential or voltage across their plasma membrane. The charge outside is designated as zero, so the minus sign indicates that the cytoplasm inside is negatively charged compared to the extracellular fl ...
... concentrations between a cell’s contents and the extracellular fluid. All cells have an electrical potential or voltage across their plasma membrane. The charge outside is designated as zero, so the minus sign indicates that the cytoplasm inside is negatively charged compared to the extracellular fl ...
Neurons, neurotransmitters and other stuff we did last term…
... Changes in one area lead to changes in another Chemical to electrical, very cool ...
... Changes in one area lead to changes in another Chemical to electrical, very cool ...
Neuron Teacher Key 5-17-16
... An individual’s survival and reproductive success depends upon the ability to sense, respond and adapt appropriately to changes in the environment. The nervous system links sensation to response. Nerve cells (neurons) in the nervous system are the structural units principally used in transmitting in ...
... An individual’s survival and reproductive success depends upon the ability to sense, respond and adapt appropriately to changes in the environment. The nervous system links sensation to response. Nerve cells (neurons) in the nervous system are the structural units principally used in transmitting in ...
Node of Ranvier
The nodes of Ranvier also known as myelin sheath gaps, are the gaps (approximately 1 micrometer in length) formed between the myelin sheaths generated by different cells. A myelin sheath is a many-layered coating, largely composed of a fatty substance called myelin, that wraps around the axon of a neuron and very efficiently insulates it. At nodes of Ranvier, the axonal membrane is uninsulated and, therefore, capable of generating electrical activity.