Ch 48-49 Reading Guide
... 4. Define a membrane potential and a resting potential. 5. Describe the factors that contribute to a membrane potential. 6. Explain the role of the sodium-potassium pump in maintaining the resting potential. 7. Explain how the Nernst equation may be used to calculate EK, the equilibrium potential fo ...
... 4. Define a membrane potential and a resting potential. 5. Describe the factors that contribute to a membrane potential. 6. Explain the role of the sodium-potassium pump in maintaining the resting potential. 7. Explain how the Nernst equation may be used to calculate EK, the equilibrium potential fo ...
What is the cause of the changes in membrane potential during an
... Shapes and timing of the action potentials Conduction of the action potential Components within the compound action potential • Refractory period/Faithfulness of conduction ...
... Shapes and timing of the action potentials Conduction of the action potential Components within the compound action potential • Refractory period/Faithfulness of conduction ...
create opposite responses in the effectors
... - brain area affected determined by observing patient’s symptoms 5. Cerebral Palsy -One cause: temporary lack of oxygen at birth - neuromuscular disability => voluntary muscles are poorly controlled because of brain damage - 50% of patients have seizures ...
... - brain area affected determined by observing patient’s symptoms 5. Cerebral Palsy -One cause: temporary lack of oxygen at birth - neuromuscular disability => voluntary muscles are poorly controlled because of brain damage - 50% of patients have seizures ...
Sensory Systems
... good because some die off even when there is no insult to the brain. Individuals who have suffered from severe neurological insult have had significantly more neurons killed off than would occur under typical conditions. Once a neuron is damaged or dies, it cannot be revived; ...
... good because some die off even when there is no insult to the brain. Individuals who have suffered from severe neurological insult have had significantly more neurons killed off than would occur under typical conditions. Once a neuron is damaged or dies, it cannot be revived; ...
Neural Basis of Motor Control
... An action potential occurs when a neuron send information down an axon, away from the soma. Neuroscientists use the words such as “spike” or “impulse” for the action potential. ...
... An action potential occurs when a neuron send information down an axon, away from the soma. Neuroscientists use the words such as “spike” or “impulse” for the action potential. ...
chapt10_lecture09
... have low “Innervation ratios” (number of muscle fibres per motor neurone). Less precisely controlled muscles, like the postural muscles of the back, have high innervation ratios. Each motor unit is controlled by descending pathways from the brainstem & motor cortex. ...
... have low “Innervation ratios” (number of muscle fibres per motor neurone). Less precisely controlled muscles, like the postural muscles of the back, have high innervation ratios. Each motor unit is controlled by descending pathways from the brainstem & motor cortex. ...
to undergo a fundamental change in its normal mode of
... “We conclude, therefore, that sense organs are not rigid machines but living and variable systems, the functioning of which is subject to variation. If a sensory system is exposed to a new and prolonged stimulus situation that departs from the one normally experienced, the system can be expected to ...
... “We conclude, therefore, that sense organs are not rigid machines but living and variable systems, the functioning of which is subject to variation. If a sensory system is exposed to a new and prolonged stimulus situation that departs from the one normally experienced, the system can be expected to ...
Cortical Representation
... – Coefficient for F(t) shows the correlation (a measure of similarity) between the signal and F(t) ...
... – Coefficient for F(t) shows the correlation (a measure of similarity) between the signal and F(t) ...
AP – All or nothing
... • AP only happens if the stimulus reaches a threshold value. – Stimulus is strong enough to cause an AP – It is an ‘all or nothing event’ because once it starts, it travels to the synapse. ...
... • AP only happens if the stimulus reaches a threshold value. – Stimulus is strong enough to cause an AP – It is an ‘all or nothing event’ because once it starts, it travels to the synapse. ...
Chapters 11: Introduction to the Nervous System and Nervous
... 2. Depolarization – sodium ions rush in (____________) 3. ____________ – potassium ions rush out (____________) 4. Hyperpolarization may occur ...
... 2. Depolarization – sodium ions rush in (____________) 3. ____________ – potassium ions rush out (____________) 4. Hyperpolarization may occur ...
Put your name here -> BIOL 415 Nerve cell
... evolution of two long wavelength cone opsins such as old world monkeys, apes and humans have from one such as new world monkeys have ...
... evolution of two long wavelength cone opsins such as old world monkeys, apes and humans have from one such as new world monkeys have ...
Forea Wang
... from multiple cells in tandem can be investigated. Part of the UROP will involve dynamic discussions on how to design highly controlled experiments for validating the system step-wise and logically. First, a cell will be patch clamped and the system used to drive a nearby electrode until that cell i ...
... from multiple cells in tandem can be investigated. Part of the UROP will involve dynamic discussions on how to design highly controlled experiments for validating the system step-wise and logically. First, a cell will be patch clamped and the system used to drive a nearby electrode until that cell i ...
NERVOUS SYSTEM AND REFLEXES Introduction:
... cell bodies. Motor neurons extend from the spinal cord on the ventral side forming the ventral root before coming together to form a mixed nerve. Each reflex arc is composed of three different neurons, all carrying out a specific function in the reflex: 1. Sensory neuron. The sensory neuron monitors ...
... cell bodies. Motor neurons extend from the spinal cord on the ventral side forming the ventral root before coming together to form a mixed nerve. Each reflex arc is composed of three different neurons, all carrying out a specific function in the reflex: 1. Sensory neuron. The sensory neuron monitors ...
Visual pathways cortical and sub
... Specialised cells and brain areas for recognition of specific category of objects (as reviewed in Lectures 1&2) e.g. face cells in the ventral stream ...
... Specialised cells and brain areas for recognition of specific category of objects (as reviewed in Lectures 1&2) e.g. face cells in the ventral stream ...
CONTROL OF MOVEMENT
... – Sensory neuron from the extensor muscle synapses with the motor neuron for that extensor muscle – Only found in the stretch reflex ...
... – Sensory neuron from the extensor muscle synapses with the motor neuron for that extensor muscle – Only found in the stretch reflex ...
The Nervous System - ESC-2
... composed of the brain and spinal cord. – brain – receives and processes information from inside and outside your body. – spinal cord – thick column of nerve tissue that links the brain to nerves in the rest of your body. ...
... composed of the brain and spinal cord. – brain – receives and processes information from inside and outside your body. – spinal cord – thick column of nerve tissue that links the brain to nerves in the rest of your body. ...
Motor Threshold - McCausland Center For Brain Imaging
... value neurons are activated and the targeted muscles might twitch. MT is regarded as an indicator for the subject ability to respond to TMS or an indicator for the relative cortical excitability. Some patients have a high TMS value other a lower value. In the literature MT is the most common referen ...
... value neurons are activated and the targeted muscles might twitch. MT is regarded as an indicator for the subject ability to respond to TMS or an indicator for the relative cortical excitability. Some patients have a high TMS value other a lower value. In the literature MT is the most common referen ...
Motor Threshold - McCausland Center | Brain Imaging
... value neurons are activated and the targeted muscles might twitch. MT is regarded as an indicator for the subject ability to respond to TMS or an indicator for the relative cortical excitability. Some patients have a high TMS value other a lower value. In the literature MT is the most common referen ...
... value neurons are activated and the targeted muscles might twitch. MT is regarded as an indicator for the subject ability to respond to TMS or an indicator for the relative cortical excitability. Some patients have a high TMS value other a lower value. In the literature MT is the most common referen ...
file
... tone was either one of seven frequencies (1.3, 2, 3, 5, 9, 14 or 19 kHz) or was fixed (9 kHz). Tone amplitude was 20–30 dB above the minimum rat hearing threshold48. In experiments using multiple carrier frequencies, the frequency of the tones within each train was constant, whereas the frequencies ...
... tone was either one of seven frequencies (1.3, 2, 3, 5, 9, 14 or 19 kHz) or was fixed (9 kHz). Tone amplitude was 20–30 dB above the minimum rat hearing threshold48. In experiments using multiple carrier frequencies, the frequency of the tones within each train was constant, whereas the frequencies ...
CHAPTER 11: NERVOUS SYSTEM II: DIVISIONS OF THE
... A branching network of spinal nerves: they do not extend directly to the body part but they form networks. Plexuses are efficient and prevent complete paralysis of a limb if damage to a spinal nerve occurs. ...
... A branching network of spinal nerves: they do not extend directly to the body part but they form networks. Plexuses are efficient and prevent complete paralysis of a limb if damage to a spinal nerve occurs. ...
PNS Extra credit worksheet. Use the text and your power point notes
... _______________________________ respond to chemicals (e.g., smell, taste, changes in blood chemistry) _______________________________ sensitive to pain-causing stimuli (e.g. extreme heat or cold, excessive pressure, inflammatory chemicals) ...
... _______________________________ respond to chemicals (e.g., smell, taste, changes in blood chemistry) _______________________________ sensitive to pain-causing stimuli (e.g. extreme heat or cold, excessive pressure, inflammatory chemicals) ...
the search for principles of neuronal organization
... At the outset it must be realized that the approach which is adopted will determine in large part the generality of any principle that is likely to emerge. A continuum of approaches can be recognized, at one extreme of which the results are likely to be generalized, but at the other end they will no ...
... At the outset it must be realized that the approach which is adopted will determine in large part the generality of any principle that is likely to emerge. A continuum of approaches can be recognized, at one extreme of which the results are likely to be generalized, but at the other end they will no ...
Garza-Juliann-Project(1)
... Differentiate the parts and functions of the central nervous system and peripheral nervous system. Create a 3-dimensional model of cranial nerves. Identify the cranial nerves by number, name, and major functions of each. Apply cranial nerve information into clinical correlations and case studies. ...
... Differentiate the parts and functions of the central nervous system and peripheral nervous system. Create a 3-dimensional model of cranial nerves. Identify the cranial nerves by number, name, and major functions of each. Apply cranial nerve information into clinical correlations and case studies. ...
Slide - Reza Shadmehr
... Associating reward to a location on a spatial map depends on the hippocampus Mouse is released into a pool of water from any starting point. A platform is positioned in a specific location just below the water line. The platform is always at the same location. The normal rat can learn to locate that ...
... Associating reward to a location on a spatial map depends on the hippocampus Mouse is released into a pool of water from any starting point. A platform is positioned in a specific location just below the water line. The platform is always at the same location. The normal rat can learn to locate that ...