chapt12 neuron_lecture
... • Qualitative information depend on: – strong stimuli excite different neurons (recruitment) – stronger stimuli causes a more rapid firing rate • CNS judges stimulus strength from firing frequency of sensory neurons – 600 action potentials/sec instead of 6 per second ...
... • Qualitative information depend on: – strong stimuli excite different neurons (recruitment) – stronger stimuli causes a more rapid firing rate • CNS judges stimulus strength from firing frequency of sensory neurons – 600 action potentials/sec instead of 6 per second ...
Ch 3 Biopsychology & the Foundations of Neuroscience
... bloodstream by what type of structures? O glands ...
... bloodstream by what type of structures? O glands ...
Neurons Communicate by Neurotransmission
... Copyright © 2000 by BSCS and Videodiscovery, Inc. Permission granted for classroom use. Updated 2009. ...
... Copyright © 2000 by BSCS and Videodiscovery, Inc. Permission granted for classroom use. Updated 2009. ...
Notes_2-4_bcsd Biologic basis of behavior
... - responds to input from the dendrites and soma -transmits a neural message down its length and then passes its information on to other cells -branch out from soma -receive input from other neurons through receptors on their surface -fatty coating surrounding the axon -insulation for the electrical ...
... - responds to input from the dendrites and soma -transmits a neural message down its length and then passes its information on to other cells -branch out from soma -receive input from other neurons through receptors on their surface -fatty coating surrounding the axon -insulation for the electrical ...
Document
... Integration of EPSPs (depolarization) and ISPSs (hyperpolarization) occurs on the neuronal cell body -Small EPSPs add together to bring the membrane potential closer to the threshold -IPSPs subtract from the depolarizing effect of EPSPs -And will therefore deter the membrane potential from reaching ...
... Integration of EPSPs (depolarization) and ISPSs (hyperpolarization) occurs on the neuronal cell body -Small EPSPs add together to bring the membrane potential closer to the threshold -IPSPs subtract from the depolarizing effect of EPSPs -And will therefore deter the membrane potential from reaching ...
File
... • Action potentials are caused by an exchange of ions across the neuron membrane. • The action potential is an explosion of electrical activity that is created by a depolarizing current ...
... • Action potentials are caused by an exchange of ions across the neuron membrane. • The action potential is an explosion of electrical activity that is created by a depolarizing current ...
Nature Versus Nurture
... Memory systems start to decline Prefrontal cortex continues to mature New synapses in language and perception centers Myelination continues ...
... Memory systems start to decline Prefrontal cortex continues to mature New synapses in language and perception centers Myelination continues ...
Language & Brain Lecture 120110
... - Damage to specific regions often produces specific deficits - e.g., In the 1800s, Broca observed that damage to the left frontal lobe led to language deficits (aphasia) - This is how it was first discovered that different parts of the brain have different functions But we can't get the full story ...
... - Damage to specific regions often produces specific deficits - e.g., In the 1800s, Broca observed that damage to the left frontal lobe led to language deficits (aphasia) - This is how it was first discovered that different parts of the brain have different functions But we can't get the full story ...
K - Cloudfront.net
... – Sodium and potassium ions used for nerve impulses in the brain – Iron, found in hemoglobin, in the blood cells (this is what makes it red in color) ...
... – Sodium and potassium ions used for nerve impulses in the brain – Iron, found in hemoglobin, in the blood cells (this is what makes it red in color) ...
The master controlling and communicating system of the body Functions
... The potential difference (–70 mV) across the membrane of a resting neuron It is generated by different concentrations of Na+, K+, Cl, and protein anions (A) Ionic differences are the consequence of: o Differential permeability of the neurilemma to Na+ and K+ o Operation of the sodium-potassium pum ...
... The potential difference (–70 mV) across the membrane of a resting neuron It is generated by different concentrations of Na+, K+, Cl, and protein anions (A) Ionic differences are the consequence of: o Differential permeability of the neurilemma to Na+ and K+ o Operation of the sodium-potassium pum ...
Types of neurons
... At resting potential !m & n low and h high ! INa and IK low! At 70mv ! m & n high and h low eventually ! low INa and high IK! •But time constant for m an order of magnitude faster than for h or n! •So INa initially high then low, IK initially low then high! •This is the basis for excitability ...
... At resting potential !m & n low and h high ! INa and IK low! At 70mv ! m & n high and h low eventually ! low INa and high IK! •But time constant for m an order of magnitude faster than for h or n! •So INa initially high then low, IK initially low then high! •This is the basis for excitability ...
The nervous system
... of protein aggregates containing a protein typically found in presynaptic nerve terminals. The consensus among scientists is that it results from a combination of environmental and genetic factors. ...
... of protein aggregates containing a protein typically found in presynaptic nerve terminals. The consensus among scientists is that it results from a combination of environmental and genetic factors. ...
Nervous System
... Gray and white matter. 4. Electrical signals in neuron. Ion channels Resting membrane potential (RMP) Graded potential. Action potential. ...
... Gray and white matter. 4. Electrical signals in neuron. Ion channels Resting membrane potential (RMP) Graded potential. Action potential. ...
ppt
... Synaptic Potentials •Excitatory Postsynaptic Potential (EPSP) •triggered by excitatory neurotransmitters •open ligand-gated Na+ channels •allows Na+ to flow inside the cell •causing a slight depolarization of the postsynaptic cell •moves the postsynaptic cell closer to firing an action potential ...
... Synaptic Potentials •Excitatory Postsynaptic Potential (EPSP) •triggered by excitatory neurotransmitters •open ligand-gated Na+ channels •allows Na+ to flow inside the cell •causing a slight depolarization of the postsynaptic cell •moves the postsynaptic cell closer to firing an action potential ...
PPT and questions for class today.
... • Sensory neurons – bring information from outside world to your brain • Motor neurons – transmit responses from brain to muscles and glands ...
... • Sensory neurons – bring information from outside world to your brain • Motor neurons – transmit responses from brain to muscles and glands ...
Nervous System Structure and Function Pt 1
... negative charge builds up on the inside of the membrane and a positive charge builds up on the outside of the membrane. • The difference in electrical charge across the cell membrane of a resting neuron is called is resting potential. • A neuron has a resting potential of about -70 millivolts (mV) ...
... negative charge builds up on the inside of the membrane and a positive charge builds up on the outside of the membrane. • The difference in electrical charge across the cell membrane of a resting neuron is called is resting potential. • A neuron has a resting potential of about -70 millivolts (mV) ...
Neuroscience and Behavior
... Nervous System: Consists of all the nerve cells. It is the body’s speedy, electrochemical ...
... Nervous System: Consists of all the nerve cells. It is the body’s speedy, electrochemical ...
The Generation of Brain Waves
... only by the cortical neurons. Subcortical structures contribute little if any to the scalp recorded EEG. However, they are important in maintaining the rhythmicity of the cortical neurons (1,7). The electrical activity in neurons is generated primarily by two sources. One source is the action potent ...
... only by the cortical neurons. Subcortical structures contribute little if any to the scalp recorded EEG. However, they are important in maintaining the rhythmicity of the cortical neurons (1,7). The electrical activity in neurons is generated primarily by two sources. One source is the action potent ...
Nerve
... node, one direction from soma to axon terminal segments, electrotonic flow of current, very fast available and each may have typesdopamine, & subtypes of ACE produce same effects as NT release 2-Synapse noradrenaline is a site "norepinephrine", of neurotransduction (from c-Peptides that actbyonacety ...
... node, one direction from soma to axon terminal segments, electrotonic flow of current, very fast available and each may have typesdopamine, & subtypes of ACE produce same effects as NT release 2-Synapse noradrenaline is a site "norepinephrine", of neurotransduction (from c-Peptides that actbyonacety ...
chapter the nervous system and the effects of drugs
... The nervous system is like a very complicated computer. As in a computer, electrical signals travel throughout the system. Instead of the wires you would see in a computer, the nervous system is made up of nerve cells, or neurons. The neurons have gaps between them, called synapses, which an electri ...
... The nervous system is like a very complicated computer. As in a computer, electrical signals travel throughout the system. Instead of the wires you would see in a computer, the nervous system is made up of nerve cells, or neurons. The neurons have gaps between them, called synapses, which an electri ...
Sxn 2 Objectives
... Explain the points in a hormone control pathway where changes would lead to disease. Predict changes in secretory rates of hypothalamic, pituitary and primary gland hormones caused by over-secretion or under secretion of any hormones in the control pathway. ...
... Explain the points in a hormone control pathway where changes would lead to disease. Predict changes in secretory rates of hypothalamic, pituitary and primary gland hormones caused by over-secretion or under secretion of any hormones in the control pathway. ...
Ch 2 Biology and Behavior
... • Process language in the left hemisphere • Used with logical, symbolic, & sequential tasks • Good at learning things. • Tries to explain actions & emotions, especially ...
... • Process language in the left hemisphere • Used with logical, symbolic, & sequential tasks • Good at learning things. • Tries to explain actions & emotions, especially ...
Neuroanatomy Handout #1: The Motor Neuron
... sheath that surrounds the axon of some neurons. – Radial glia- guide the migration of neurons and the growth of their axons and dendrites during embryonic development. ...
... sheath that surrounds the axon of some neurons. – Radial glia- guide the migration of neurons and the growth of their axons and dendrites during embryonic development. ...
neurons - haltliappsych
... an action potential, allowing sodium ions to rush into the axon--happening near the soma, first, and then as action potential moves along, the gates open in sequence down the length of the axon. • *** NOTE: An impulse occurs completely or not at all ...
... an action potential, allowing sodium ions to rush into the axon--happening near the soma, first, and then as action potential moves along, the gates open in sequence down the length of the axon. • *** NOTE: An impulse occurs completely or not at all ...