Document
... Allow Na+ and K+ to flow down their concentration gradients Formation of transmembrane electric current (Partial) collapse of RMP when gates are open Gates are controlled by transmembrane voltage (transistor-like properties) ...
... Allow Na+ and K+ to flow down their concentration gradients Formation of transmembrane electric current (Partial) collapse of RMP when gates are open Gates are controlled by transmembrane voltage (transistor-like properties) ...
The Nervous System
... replaced when they die. In fact, you have fewer neurons when you are old compared to when you are young. On the other hand, data published in November 1998 show that in one area of the brain (the hippocampus), new neurons CAN grow in adult humans. Neurons can be quite large - in some neurons, such a ...
... replaced when they die. In fact, you have fewer neurons when you are old compared to when you are young. On the other hand, data published in November 1998 show that in one area of the brain (the hippocampus), new neurons CAN grow in adult humans. Neurons can be quite large - in some neurons, such a ...
Single Unit Recording
... electrode introduced into the brain of a living animal will detect electrical activity that is generated by the neurons adjacent to the electrode tip. If the electrode is a microelectrode, with a tip size of 3 to 10 micrometers, the electrode will often isolate the activity of a single neuron. The a ...
... electrode introduced into the brain of a living animal will detect electrical activity that is generated by the neurons adjacent to the electrode tip. If the electrode is a microelectrode, with a tip size of 3 to 10 micrometers, the electrode will often isolate the activity of a single neuron. The a ...
create opposite responses in the effectors
... - largest portion of the brain, about 2/3 -upper most portion and divided into 2 hemispheres Cerebral cortex -Outermost portion of cerebrum -human cerebral cortex is more developed than in any other animal ...
... - largest portion of the brain, about 2/3 -upper most portion and divided into 2 hemispheres Cerebral cortex -Outermost portion of cerebrum -human cerebral cortex is more developed than in any other animal ...
Lecture 11a Nervous System
... Motor (Efferent) Neurons • Signals from CNS motor neurons to visceral effectors pass synapses at autonomic ganglia dividing axons into: – preganglionic fibers – postganglionic fibers ...
... Motor (Efferent) Neurons • Signals from CNS motor neurons to visceral effectors pass synapses at autonomic ganglia dividing axons into: – preganglionic fibers – postganglionic fibers ...
Central Nervous ppt
... Transverse gyri (pleated) called folia. Pattern of white matter inside resembles a ...
... Transverse gyri (pleated) called folia. Pattern of white matter inside resembles a ...
The Motor System of the Cortex and the Brain Stem
... current position of the end-effector, where the end-effector now is not hand position but the cursor position, then their discharge might be invariant to changes in arm configuration. Indeed, among nearly all the task related PMv cells that were found, discharge was related to the direction of the ...
... current position of the end-effector, where the end-effector now is not hand position but the cursor position, then their discharge might be invariant to changes in arm configuration. Indeed, among nearly all the task related PMv cells that were found, discharge was related to the direction of the ...
Slide 1
... FIGURE 32.7 The brainstem circuits for controlling saccadic eye movements. This diagram of the saccade burst generator outlines the major classes of neurons involved in constructing the motor command for horizontal saccades. Omnipause neurons (OPN) located near the midline in the nucleus raphe inte ...
... FIGURE 32.7 The brainstem circuits for controlling saccadic eye movements. This diagram of the saccade burst generator outlines the major classes of neurons involved in constructing the motor command for horizontal saccades. Omnipause neurons (OPN) located near the midline in the nucleus raphe inte ...
Neural-Ville
... neurotransmitter are sent into the tiny space between nerve cells, called the synaptic gap. ...
... neurotransmitter are sent into the tiny space between nerve cells, called the synaptic gap. ...
Nervous System - wondersofscience
... transforms it into a nerve impulse – The nerve impulse is transmitted along the axon – Nerve impulses travel from one neuron to another via neurotransmitters (chemical substance) secreted by axon terminals • A synapse is the transition zone between 2 neurons that allows a nerve impulse to be transmi ...
... transforms it into a nerve impulse – The nerve impulse is transmitted along the axon – Nerve impulses travel from one neuron to another via neurotransmitters (chemical substance) secreted by axon terminals • A synapse is the transition zone between 2 neurons that allows a nerve impulse to be transmi ...
news and views - Cortical Plasticity
... Connectivity patterns of neocortex exhibit several odd properties: for example, most neighboring excitatory neurons do not connect, which seems curiously wasteful. Brunel’s elegant theoretical treatment reveals how optimal information storage can naturally impose these peculiar properties. The conne ...
... Connectivity patterns of neocortex exhibit several odd properties: for example, most neighboring excitatory neurons do not connect, which seems curiously wasteful. Brunel’s elegant theoretical treatment reveals how optimal information storage can naturally impose these peculiar properties. The conne ...
Nervous System Guided Notes
... The efferent / motor neurons can be further divided into: 1) _______________________________ - neurons that control skeletal muscles - mostly voluntary 2) ____________________________________ -- neurons that control smooth and cardiac muscle and glands - involuntary Determine which parts of the nerv ...
... The efferent / motor neurons can be further divided into: 1) _______________________________ - neurons that control skeletal muscles - mostly voluntary 2) ____________________________________ -- neurons that control smooth and cardiac muscle and glands - involuntary Determine which parts of the nerv ...
L21-Cerebral Hemisph..
... sensations relative to body position and orientation in space. May assist with visuo-motor coordination. • Primary Gustatory Cortex – Primary site ...
... sensations relative to body position and orientation in space. May assist with visuo-motor coordination. • Primary Gustatory Cortex – Primary site ...
Skeletal, Muscular and Nervous Systems
... ►Interneurons: Receive messages from sensory neurons. These neurons are located in the brain and spinal cord. ►Motor Neurons: Neurons that send commands to muscles and glands to react. ...
... ►Interneurons: Receive messages from sensory neurons. These neurons are located in the brain and spinal cord. ►Motor Neurons: Neurons that send commands to muscles and glands to react. ...
Exam - McLoon Lab
... into the cell when a neuron is at rest. B. No energy is required to maintain the resting membrane potential. C. The concentration of chloride ion is higher inside of the cell than outside when the neuron is at rest, which is why the cell is said to have a negative charge. D. All ion channels are clo ...
... into the cell when a neuron is at rest. B. No energy is required to maintain the resting membrane potential. C. The concentration of chloride ion is higher inside of the cell than outside when the neuron is at rest, which is why the cell is said to have a negative charge. D. All ion channels are clo ...
Invertebrate nervous systems:
... voltage differences (batteries) or concentration differences…. In fact cells have both kinds of energy storage mechanisms = electrochemical gradients How much--- what “direction”. ?? etc. For our questions about how neurons will generate time variant electrical signals we first need to know how much ...
... voltage differences (batteries) or concentration differences…. In fact cells have both kinds of energy storage mechanisms = electrochemical gradients How much--- what “direction”. ?? etc. For our questions about how neurons will generate time variant electrical signals we first need to know how much ...
chapter 44 lecture slides
... • Size depends on either the strength of the stimulus or the amount of ligand available to bind with their receptors • Can reinforce or negate each other • Summation is the ability of graded potentials to ...
... • Size depends on either the strength of the stimulus or the amount of ligand available to bind with their receptors • Can reinforce or negate each other • Summation is the ability of graded potentials to ...
chapter 44 lecture slides
... • Size depends on either the strength of the stimulus or the amount of ligand available to bind with their receptors • Can reinforce or negate each other • Summation is the ability of graded potentials to ...
... • Size depends on either the strength of the stimulus or the amount of ligand available to bind with their receptors • Can reinforce or negate each other • Summation is the ability of graded potentials to ...
Biopsychology Revision
... An action potential occurs when a neuron sends information down an axon, away from the cell body. The action potential is an explosion of electrical activity - this means that some event (a stimulus) causes the resting potential to move forward ...
... An action potential occurs when a neuron sends information down an axon, away from the cell body. The action potential is an explosion of electrical activity - this means that some event (a stimulus) causes the resting potential to move forward ...
Neurons and Neurotransmitters
... Neural Communication • After a neuron fires there is a Refractory Period – a period of inactivity after it has fired. ...
... Neural Communication • After a neuron fires there is a Refractory Period – a period of inactivity after it has fired. ...
Chapter 48: Nervous System
... Cranial nerves: originate in brain and spread to organs of upper body and head Spinal nerves: originate in spinal cord and spread throughout the body Sensory division: sensory neurons that convey info to the CNS from sensory receptors that monitor external and internal environments (input) M ...
... Cranial nerves: originate in brain and spread to organs of upper body and head Spinal nerves: originate in spinal cord and spread throughout the body Sensory division: sensory neurons that convey info to the CNS from sensory receptors that monitor external and internal environments (input) M ...