Biopsychology
... Application of small amounts of electricity through a surgically implanted electrode. Shows what behaviors(/cognitions) occur if we stimulate or damage (lesion) a particular area of the brain. Electroencephalogram (EEG) & Evoked Potentials The EEG measures the brain's electrical activity using ...
... Application of small amounts of electricity through a surgically implanted electrode. Shows what behaviors(/cognitions) occur if we stimulate or damage (lesion) a particular area of the brain. Electroencephalogram (EEG) & Evoked Potentials The EEG measures the brain's electrical activity using ...
CENTENNIAL HONORS COLLEGE Western Illinois University Undergraduate Research Day 2015
... Characterizing an Abnormal Action Potential Pattern in Ion-Channel-Mutant Drosophila Mariah Maiman Faculty Mentor: Jeffrey Engel Biology Repetitive activities such as flight are organized by neural networks called central pattern generators and the patterns of action potentials they produce is thoug ...
... Characterizing an Abnormal Action Potential Pattern in Ion-Channel-Mutant Drosophila Mariah Maiman Faculty Mentor: Jeffrey Engel Biology Repetitive activities such as flight are organized by neural networks called central pattern generators and the patterns of action potentials they produce is thoug ...
AP Biology - gwbiology
... 1. What does selective permeability mean and why is that important to cells? A selectively permeable membrane is a property of biological membranes that allows some substances to cross more than others. It is fundamental to life that cells can discriminate in its chemical exchange with the environme ...
... 1. What does selective permeability mean and why is that important to cells? A selectively permeable membrane is a property of biological membranes that allows some substances to cross more than others. It is fundamental to life that cells can discriminate in its chemical exchange with the environme ...
48 Nervous System PowerPoint
... >Speed of Transmission: Larger axons & Myelin sheath (Saltatory conduction) ...
... >Speed of Transmission: Larger axons & Myelin sheath (Saltatory conduction) ...
The Nervous System
... -Original stimulation must be above threshold level in order for an impulse to be started (all or nothing) Transmission of impulses between neurons -Communication between cells occurs at synapses (gap between axon and neighboring dendrite) -Pre-synaptic cells contain synaptic vesicles which contain ...
... -Original stimulation must be above threshold level in order for an impulse to be started (all or nothing) Transmission of impulses between neurons -Communication between cells occurs at synapses (gap between axon and neighboring dendrite) -Pre-synaptic cells contain synaptic vesicles which contain ...
CH 48 Nervous systemnotes2010
... to the central nervous system 2. interneuron- a nerve cell within the central nervous system responsible for the integration of neural input and output 3. motor neuron transmits signals from the brain or spinal column to muscles or glands How do nerve cells send impulses along itself? All deals with ...
... to the central nervous system 2. interneuron- a nerve cell within the central nervous system responsible for the integration of neural input and output 3. motor neuron transmits signals from the brain or spinal column to muscles or glands How do nerve cells send impulses along itself? All deals with ...
Diffusion Demonstration
... Osmosis: when water moves across the plasma membrane by passive transport ...
... Osmosis: when water moves across the plasma membrane by passive transport ...
Dynamic Equilibrium Review 1. Describe the structure and function
... 1. Describe the structure and function of each component of a typical neuron. Dendrites – receive signal from other neurons or outside world (senses) Cell body – site of metabolic activity, most typical cellular processes happen here Axon – long strand branching off cell body, carries signal away fr ...
... 1. Describe the structure and function of each component of a typical neuron. Dendrites – receive signal from other neurons or outside world (senses) Cell body – site of metabolic activity, most typical cellular processes happen here Axon – long strand branching off cell body, carries signal away fr ...
Chapter 3 The Plasma Membrane: transport across cell membrane
... 1. H+ can move across the membrane by simple diffusion. 2. Transport by channel protein can be either active or passive. 3. Carrier proteins transfer the solute across the cell membrane by undergoing reversible conformational changes. 4. Most channel proteins have a gate which selectively opened in ...
... 1. H+ can move across the membrane by simple diffusion. 2. Transport by channel protein can be either active or passive. 3. Carrier proteins transfer the solute across the cell membrane by undergoing reversible conformational changes. 4. Most channel proteins have a gate which selectively opened in ...
Week 2 Lecture Notes
... The patch clamp consists of an electrode inside a glass pipette. The pipette, which contains a salt solution resembling the fluid normally found within the cell, is lowered to the cell membrane where a tight seal is formed. When a little suction is applied to the pipette, the "patch" of membrane wi ...
... The patch clamp consists of an electrode inside a glass pipette. The pipette, which contains a salt solution resembling the fluid normally found within the cell, is lowered to the cell membrane where a tight seal is formed. When a little suction is applied to the pipette, the "patch" of membrane wi ...
Action Potential
... How does the action potential have an effect ? propagation- action potential progresses down the cell membrane by segments. one region is stimulated, then the region next to it is, etc. electrical current changes shape of channels in adjacent regions * Na+ channels ...
... How does the action potential have an effect ? propagation- action potential progresses down the cell membrane by segments. one region is stimulated, then the region next to it is, etc. electrical current changes shape of channels in adjacent regions * Na+ channels ...
Name:
... membrane below that is depolarized showing all ions along with all gates. Show which gates are closed and which are opened. What gate(s ) did you manipulate and how? ...
... membrane below that is depolarized showing all ions along with all gates. Show which gates are closed and which are opened. What gate(s ) did you manipulate and how? ...
More Transparency in BioAnalysis of Exocytosis: Coupling of
... Excitation of fluorescent vesicles in cell by an evanescent wave of very low penetration depth (50-300 nm) ...
... Excitation of fluorescent vesicles in cell by an evanescent wave of very low penetration depth (50-300 nm) ...
Lectures 26-27 Study Guide
... Microglia: immune cells in the CNS that protect against pathogens (similar to WBC) Oligodendrocytes (CNS) and Schwann (PNS) cells: form the myelin sheaths around axons. This increases the speed at which an action potential (AP) travels along the axon (more on this in Lecture 27). When comparing neur ...
... Microglia: immune cells in the CNS that protect against pathogens (similar to WBC) Oligodendrocytes (CNS) and Schwann (PNS) cells: form the myelin sheaths around axons. This increases the speed at which an action potential (AP) travels along the axon (more on this in Lecture 27). When comparing neur ...
File
... 1. How is it possible for charged ions to move from neuron to neuron if the plasma membrane is impermeable to charged ions? 2. Describe the forces that act upon the potassium ions in and out of the plasma membrane. 3. What is the resting membrane potential charge? 4. At rest, why is the neuron negat ...
... 1. How is it possible for charged ions to move from neuron to neuron if the plasma membrane is impermeable to charged ions? 2. Describe the forces that act upon the potassium ions in and out of the plasma membrane. 3. What is the resting membrane potential charge? 4. At rest, why is the neuron negat ...
Trigeminal Ganglion Cell
... Trigeminal Ganglion Cell: this is about 2 seconds of activity that was recorded from a ganglion cell after the maxillary (upper) incisor tooth of an anesthetized rat was tapped 5 times. Listen for 5 distinct "bursts" of action potentials. Trigeminal Ganglion Cell: this is about 2 seconds of activi ...
... Trigeminal Ganglion Cell: this is about 2 seconds of activity that was recorded from a ganglion cell after the maxillary (upper) incisor tooth of an anesthetized rat was tapped 5 times. Listen for 5 distinct "bursts" of action potentials. Trigeminal Ganglion Cell: this is about 2 seconds of activi ...
I. Functions and Divisions of the Nervous System A. The nervous
... protects, insulates, and increases conduction velocity of axons. iii. Myelin sheaths in the PNS are formed by Schwann cells that wrap themselves around the axon, forming discrete areas separated by myelin sheath gaps. iv. Myelin sheaths in the CNS are formed by oligodendrocytes that have processes t ...
... protects, insulates, and increases conduction velocity of axons. iii. Myelin sheaths in the PNS are formed by Schwann cells that wrap themselves around the axon, forming discrete areas separated by myelin sheath gaps. iv. Myelin sheaths in the CNS are formed by oligodendrocytes that have processes t ...
Tutorial 5: Sodium and Potassium Gradients at Rest
... difference in charge across the membrane) using carefully placed microelectrodes. The charges found both inside and outside the cell membrane were recorded using an oscilloscope, an instrument that uses a fluorescent screen to display a visual representation of electrical variations. Neuroscience no ...
... difference in charge across the membrane) using carefully placed microelectrodes. The charges found both inside and outside the cell membrane were recorded using an oscilloscope, an instrument that uses a fluorescent screen to display a visual representation of electrical variations. Neuroscience no ...
슬라이드 1
... b) transmits signals from the environment to the cell interior c) participates in the synthesis and assembly of cell walls. d) provides physical links btwn the cytoskeleton & the extracellular matrix ...
... b) transmits signals from the environment to the cell interior c) participates in the synthesis and assembly of cell walls. d) provides physical links btwn the cytoskeleton & the extracellular matrix ...
Electrophysiology
Electrophysiology (from Greek ἥλεκτρον, ēlektron, ""amber"" [see the etymology of ""electron""]; φύσις, physis, ""nature, origin""; and -λογία, -logia) is the study of the electrical properties of biological cells and tissues. It involves measurements of voltage change or electric current on a wide variety of scales from single ion channel proteins to whole organs like the heart. In neuroscience, it includes measurements of the electrical activity of neurons, and particularly action potential activity. Recordings of large-scale electric signals from the nervous system such as electroencephalography, may also be referred to as electrophysiological recordings.