Nervous Sys Learning targets
... 1. List the basic functions of the nervous system 2. draw a concept map to show the structural and functional divisions of the nervous system 3. List the types of neuroglia and cite their functions ...
... 1. List the basic functions of the nervous system 2. draw a concept map to show the structural and functional divisions of the nervous system 3. List the types of neuroglia and cite their functions ...
The Nervous System
... strengthened or weakened depending on activity between neurons. Autism is due to a disruption remodeling of synapses. ...
... strengthened or weakened depending on activity between neurons. Autism is due to a disruption remodeling of synapses. ...
Document
... Meth & the Brain: •Prolonged use destroys dopamine receptors (which create the feeling of pleasure in the brain) •Can also lead to psychotic behaviors, including paranoia, insomnia, delusions, hallucinations, and even death Meth & the Body: •Destroys tissues and blood vessels, leaving the body inca ...
... Meth & the Brain: •Prolonged use destroys dopamine receptors (which create the feeling of pleasure in the brain) •Can also lead to psychotic behaviors, including paranoia, insomnia, delusions, hallucinations, and even death Meth & the Body: •Destroys tissues and blood vessels, leaving the body inca ...
Nervous System Reading from SparkNotes
... Neurons cannot directly pass an action potential from one to the next because of the synapses between them. Instead, neurons communicate across the synaptic clefts by the means of chemical signals known as neurotransmitters. When an action potential reaches the synapse, it causes the release of vesi ...
... Neurons cannot directly pass an action potential from one to the next because of the synapses between them. Instead, neurons communicate across the synaptic clefts by the means of chemical signals known as neurotransmitters. When an action potential reaches the synapse, it causes the release of vesi ...
International Baccalaureate Biology Option
... knowing what they want to say but they can only make sounds and are unable to make meaningful words and sentences. ...
... knowing what they want to say but they can only make sounds and are unable to make meaningful words and sentences. ...
Document
... 2. Vesicle containing neurotransmitter fuses with plasma membrane 3. Neurotransmitter is released into synaptic cleft 4. Neurotransmitter binds to receptor on receiving neuron – Following events vary with different types of chemical synapses ...
... 2. Vesicle containing neurotransmitter fuses with plasma membrane 3. Neurotransmitter is released into synaptic cleft 4. Neurotransmitter binds to receptor on receiving neuron – Following events vary with different types of chemical synapses ...
Outline10 Action Potl
... - voltage-gated Na+ channels open activation gate opens in response to initial depolarization → rapid Na+ inflow → depolarization → more activation gates open (positive feedback) 2. Repolarization (falling) phase - voltage-gated Na+ channels close inactivation gate closes when depolarization reaches ...
... - voltage-gated Na+ channels open activation gate opens in response to initial depolarization → rapid Na+ inflow → depolarization → more activation gates open (positive feedback) 2. Repolarization (falling) phase - voltage-gated Na+ channels close inactivation gate closes when depolarization reaches ...
Lecture 13: Insect nerve system (NS)
... multipolar cells have dendrites that are associated with sense organs. They carry information TOWARD the central nervous system (CNS). • Efferent (motor) neurons -- unipolar cells that conduct signals AWAY from CNs and stimulate responses in muscles and glands. • Interneuron (association neuron) -un ...
... multipolar cells have dendrites that are associated with sense organs. They carry information TOWARD the central nervous system (CNS). • Efferent (motor) neurons -- unipolar cells that conduct signals AWAY from CNs and stimulate responses in muscles and glands. • Interneuron (association neuron) -un ...
The Nervous System
... The cylindrical bundle of nerve fibers and associated tissue that is enclosed in the spine and connects nearly all parts of the body to the brain ...
... The cylindrical bundle of nerve fibers and associated tissue that is enclosed in the spine and connects nearly all parts of the body to the brain ...
Chapter 2 - The Brain (Part II)
... Portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear An area at the rear of the frontal lobes that controls voluntary movements. Area at the front of the parietal lobes that registers and processes body t ...
... Portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear An area at the rear of the frontal lobes that controls voluntary movements. Area at the front of the parietal lobes that registers and processes body t ...
ppt - Brain Dynamics Laboratory
... • Neural communication depends on the anatomical components that connect individual neurons (structure) and the process of transmitting information (function). Both aspects affect the overall performance of the system. ...
... • Neural communication depends on the anatomical components that connect individual neurons (structure) and the process of transmitting information (function). Both aspects affect the overall performance of the system. ...
Handout 2 –2 Brain Structure Functions Handout 2-2 driving
... Regulates our alertness or drowsiness while we are at the wheel ...
... Regulates our alertness or drowsiness while we are at the wheel ...
Teacher Guide
... If anyone drops a cotton ball, ask whether or not the students think this actually happens in the brain. Some neurotransmitters actually do not reach their targets, so it does happen. 4. Explain that within a signal neuron, the neurotransmitter attaches to the receptors on the dendrites, generating ...
... If anyone drops a cotton ball, ask whether or not the students think this actually happens in the brain. Some neurotransmitters actually do not reach their targets, so it does happen. 4. Explain that within a signal neuron, the neurotransmitter attaches to the receptors on the dendrites, generating ...
An octopaminergic system in the CNS of the snails, Lymnaea
... rhythm with feeding neurons either appearing spontaneously or evoked by intracellularly stimulated feeding interneurons. OC neurons also have synaptic connections with identified members of the feeding network: electrical coupling was demonstrated between OC neurons and members of the B4 cluster mot ...
... rhythm with feeding neurons either appearing spontaneously or evoked by intracellularly stimulated feeding interneurons. OC neurons also have synaptic connections with identified members of the feeding network: electrical coupling was demonstrated between OC neurons and members of the B4 cluster mot ...
Myers Module Six
... This brain area requires a lot of fuel (glucose, or bloodsugar), and myeline sheathing. This is supplied by the glial cells. They support, nourish, and protect neurons, and play a role in learning and thinking. For example, glial cell death has been linked to clinical depression. They also guide neu ...
... This brain area requires a lot of fuel (glucose, or bloodsugar), and myeline sheathing. This is supplied by the glial cells. They support, nourish, and protect neurons, and play a role in learning and thinking. For example, glial cell death has been linked to clinical depression. They also guide neu ...
Nervous System Test Review
... Carries impulse along nerve cell “tail” Contains genetic material for neuron ...
... Carries impulse along nerve cell “tail” Contains genetic material for neuron ...
PsychSim5: Neural Messages 1 PsychSim 5: NEURAL MESSAGES
... that play an important role in transmitting signals from one cell to the next ...
... that play an important role in transmitting signals from one cell to the next ...
Nervous System - Calgary Christian School
... Most drugs do not get into the brain. Only drugs that are fat soluble can penetrate the blood-brain barrier. These include drugs of abuse as well as drugs that treat mental and neurological illness. The blood-brain barrier is important for maintaining the environment of neurons in the brain, but it ...
... Most drugs do not get into the brain. Only drugs that are fat soluble can penetrate the blood-brain barrier. These include drugs of abuse as well as drugs that treat mental and neurological illness. The blood-brain barrier is important for maintaining the environment of neurons in the brain, but it ...
Maximizing Instructional Time
... • Your arm represents the axon of your neuron. • Dendrites do not talk to other dendrites. • Dendrites talk to axons but they do not touch since the message has to cross an area called the synapse. • There is a substance that forms on the axon called myelin. • Myelin is like ‘crisco’. ...
... • Your arm represents the axon of your neuron. • Dendrites do not talk to other dendrites. • Dendrites talk to axons but they do not touch since the message has to cross an area called the synapse. • There is a substance that forms on the axon called myelin. • Myelin is like ‘crisco’. ...
File
... passed down to the cell body where the information is evaluated and on to the axon. Once the information is at axon it travel downs length of axon in form of electrical signal known as action potential. Once the electrical impulse has reached end of axon it must be transmitted to another neuron or c ...
... passed down to the cell body where the information is evaluated and on to the axon. Once the information is at axon it travel downs length of axon in form of electrical signal known as action potential. Once the electrical impulse has reached end of axon it must be transmitted to another neuron or c ...
Chapter 23 take home test File
... d) A neuron might have more than one dendrite. There is never more than one axon per neuron. e) Bundles of dendrites from several cells are called nerves. Axons do not form bundles. 7. External signals are first picked up by which part of a neuron? a) nucleus b) dendrites c) axon d) cell body e) neu ...
... d) A neuron might have more than one dendrite. There is never more than one axon per neuron. e) Bundles of dendrites from several cells are called nerves. Axons do not form bundles. 7. External signals are first picked up by which part of a neuron? a) nucleus b) dendrites c) axon d) cell body e) neu ...
BN20 cortical motor control
... Neuron most active Preferred direction but active at 45 from preferred How is direction determined? Populations of M1 neurons Net activity of neurons with different preferred directions vectors ~ ...
... Neuron most active Preferred direction but active at 45 from preferred How is direction determined? Populations of M1 neurons Net activity of neurons with different preferred directions vectors ~ ...
formalin as a peripheral noxious stimulus causes a biphasic
... be distinguished by being active in different types of pain. I The most striking feature of the data is that no lesion sites in these regions produce the same effects in both formalin and tail-flick tests. This implies that the neural substrate of mor phine analgesia in a test that involves a rapid ...
... be distinguished by being active in different types of pain. I The most striking feature of the data is that no lesion sites in these regions produce the same effects in both formalin and tail-flick tests. This implies that the neural substrate of mor phine analgesia in a test that involves a rapid ...
Synaptic gating
Synaptic gating is the ability of neural circuits to gate inputs by either suppressing or facilitating specific synaptic activity. Selective inhibition of certain synapses has been studied thoroughly (see Gate theory of pain), and recent studies have supported the existence of permissively gated synaptic transmission. In general, synaptic gating involves a mechanism of central control over neuronal output. It includes a sort of gatekeeper neuron, which has the ability to influence transmission of information to selected targets independently of the parts of the synapse upon which it exerts its action (see also neuromodulation).Bistable neurons have the ability to oscillate between a hyperpolarized (down state) and a depolarized (up state) resting membrane potential without firing an action potential. These neurons can thus be referred to as up/down neurons. According to one model, this ability is linked to the presence of NMDA and AMPA glutamate receptors. External stimulation of the NMDA receptors is responsible for moving the neuron from the down state to the up state, while the stimulation of AMPA receptors allows the neuron to reach and surpass the threshold potential. Neurons that have this bistable ability have the potential to be gated because outside gatekeeper neurons can modulate the membrane potential of the gated neuron by selectively shifting them from the up state to the down state. Such mechanisms have been observed in the nucleus accumbens, with gatekeepers originating in the cortex, thalamus and basal ganglia.