Chapter 6: Body and Behavior
... Neuron: The Neural Impulse • Neurons have a __________ for firing (sending those impulses to the next neuron) • Neurons add each “____________,” & subtract each “_______________” • When it gets enough “fire messages,” the threshold has been crossed and the __________ the impulse • If not stimulated ...
... Neuron: The Neural Impulse • Neurons have a __________ for firing (sending those impulses to the next neuron) • Neurons add each “____________,” & subtract each “_______________” • When it gets enough “fire messages,” the threshold has been crossed and the __________ the impulse • If not stimulated ...
Development of the Brain
... Migration-move toward final destination Differentiation-form axons and dendrites Myelination-addition of insulating sheath ...
... Migration-move toward final destination Differentiation-form axons and dendrites Myelination-addition of insulating sheath ...
To allow an immediate response to stimuli in the
... TOWARDS the cell body) 3. The Axons (branches which carry the signal AWAY from the cell body) -A “nerve” consists of one or more neurons -two neurons in a row, are separated by a “synapse” (a gap) -when the nerve signal gets to the end of the axon, it releases chemicals called “neurotransmitters” wh ...
... TOWARDS the cell body) 3. The Axons (branches which carry the signal AWAY from the cell body) -A “nerve” consists of one or more neurons -two neurons in a row, are separated by a “synapse” (a gap) -when the nerve signal gets to the end of the axon, it releases chemicals called “neurotransmitters” wh ...
Neuroscience and Behavior
... visual display of brain activity that detects a radioactive form of glucose while the brain performs a given task. ...
... visual display of brain activity that detects a radioactive form of glucose while the brain performs a given task. ...
Nervous System Part 1
... and spinal cord These nerves serve as communication lines. They link all parts of the body by carrying impulses from the sensory receptors to the CNS and from the CNS to the appropriate glands or muscles. ...
... and spinal cord These nerves serve as communication lines. They link all parts of the body by carrying impulses from the sensory receptors to the CNS and from the CNS to the appropriate glands or muscles. ...
The Central Nervous System
... C) Pia Mater: innermost; extensive circulatory supply due to high rate of metabolism Meningitis: inflammation of meninges due to bacterial or viral infection ...
... C) Pia Mater: innermost; extensive circulatory supply due to high rate of metabolism Meningitis: inflammation of meninges due to bacterial or viral infection ...
The Nervous System - hrsbstaff.ednet.ns.ca
... 2. MOTOR NEURON: (= efferent neuron) takes message away from CNS to a muscle fiber or gland. Short dendrites, long axon. 3. INTERNEURON: (= association neuron or connector neuron): completely contained within CNS. Conveys messages between parts of the system. Dendrites, axons, may be long or short. ...
... 2. MOTOR NEURON: (= efferent neuron) takes message away from CNS to a muscle fiber or gland. Short dendrites, long axon. 3. INTERNEURON: (= association neuron or connector neuron): completely contained within CNS. Conveys messages between parts of the system. Dendrites, axons, may be long or short. ...
The Nervous System
... • Identify the major structures of the central nervous system • Describe the major structure of the peripheral nervous system • List and describe diseases and disorders of the nervous system ...
... • Identify the major structures of the central nervous system • Describe the major structure of the peripheral nervous system • List and describe diseases and disorders of the nervous system ...
TABLE OF CONTENTS - Test Bank, Manual Solution, Solution Manual
... Dendritic spines: Short outgrowths found on some dendritic branches. Cell body (soma): Contains the nucleus, ribosomes, mitochondria, and other structures found in most cells. Axon: A long, thin fiber (usually longer than dendrites), which is the information-sending part of the neuron, sending an el ...
... Dendritic spines: Short outgrowths found on some dendritic branches. Cell body (soma): Contains the nucleus, ribosomes, mitochondria, and other structures found in most cells. Axon: A long, thin fiber (usually longer than dendrites), which is the information-sending part of the neuron, sending an el ...
Nervous System powerpoint new
... of cell body. They receive information 3) Axon-extension of cytoplasm. Transmit impulse away from the body ...
... of cell body. They receive information 3) Axon-extension of cytoplasm. Transmit impulse away from the body ...
Supporting cells - Mount Carmel Academy
... Nerves outside the brain and spinal cord These nerves serve as communication lines. They link all parts of the body by carrying impulses from the sensory receptors to the CNS and from the CNS to the appropriate glands or muscles. ...
... Nerves outside the brain and spinal cord These nerves serve as communication lines. They link all parts of the body by carrying impulses from the sensory receptors to the CNS and from the CNS to the appropriate glands or muscles. ...
Chapter 2: Neuroscience and Behavior
... If enough inputs the cell’s AXON may generate an output ...
... If enough inputs the cell’s AXON may generate an output ...
Maximizing Instructional Time
... • Dendrites are the connections at the end of neurons. • Every time you learn something new, you grow new dendrites. Hold your dominant arm up. Your arm, including your hand, is a neuron. If your arm is a neuron, then what are your fingers? ...
... • Dendrites are the connections at the end of neurons. • Every time you learn something new, you grow new dendrites. Hold your dominant arm up. Your arm, including your hand, is a neuron. If your arm is a neuron, then what are your fingers? ...
Earthworm Action Potentials
... that are electrically coupled to each other through gap junctions. This results in the rapid conduction of action potentials from cell to cell so that each giant fiber behaves as though it were a single axon. In addition, the lateral giant fibers are extensively linked to each other by cross-connect ...
... that are electrically coupled to each other through gap junctions. This results in the rapid conduction of action potentials from cell to cell so that each giant fiber behaves as though it were a single axon. In addition, the lateral giant fibers are extensively linked to each other by cross-connect ...
Powerpoint version
... Causes an outflow of K+ from the postsynaptic neuron. It can also cause an influx of CL This produces an IPSP and hyperpolarizes the ...
... Causes an outflow of K+ from the postsynaptic neuron. It can also cause an influx of CL This produces an IPSP and hyperpolarizes the ...
Ch12 notes Martini 9e
... • Neurofilaments and neurotubules in place of microfilaments and microtubules • Neurofibrils: bundles of neurofilaments that provide support for dendrites and axon • Nissl bodies • Dense areas of RER and ribosomes • Make neural tissue appear gray (gray matter) • Dendrites • Highly branched • Dendrit ...
... • Neurofilaments and neurotubules in place of microfilaments and microtubules • Neurofibrils: bundles of neurofilaments that provide support for dendrites and axon • Nissl bodies • Dense areas of RER and ribosomes • Make neural tissue appear gray (gray matter) • Dendrites • Highly branched • Dendrit ...
File
... packaged in synaptic vesicles. E.g. Amino acids and amines are stored in synaptic vesicles • Large molecules assembled in the cell body, packaged in vesicles, and then transported to the axon terminal. E.g. Peptides are stored in and released from secretory granules Often coexist in the same axon ...
... packaged in synaptic vesicles. E.g. Amino acids and amines are stored in synaptic vesicles • Large molecules assembled in the cell body, packaged in vesicles, and then transported to the axon terminal. E.g. Peptides are stored in and released from secretory granules Often coexist in the same axon ...
nervous system physiology 1
... Neurons classified on the basis of their axonal projection, dendritic geometry, and the number of processes emanating from the cell body CNS nerve cells - great structural diversity, correlated with their functions. -axonal projection long axons: Axonal Projection Neurons = principal neurons or Gol ...
... Neurons classified on the basis of their axonal projection, dendritic geometry, and the number of processes emanating from the cell body CNS nerve cells - great structural diversity, correlated with their functions. -axonal projection long axons: Axonal Projection Neurons = principal neurons or Gol ...
Lecture Test 2 2010
... A. preganglionic parasympathetic B. postganglionic parasympathetic C. preganglionic sympathetic D. postganglionic sympathetic E. sensory A 41. The deep gray matter of the medulla oblongata contains _____________________________ cell bodies. A. preganglionic parasympathetic B. postganglionic parasymp ...
... A. preganglionic parasympathetic B. postganglionic parasympathetic C. preganglionic sympathetic D. postganglionic sympathetic E. sensory A 41. The deep gray matter of the medulla oblongata contains _____________________________ cell bodies. A. preganglionic parasympathetic B. postganglionic parasymp ...
Nerve Pathways Practice Sheet
... Fill-in-the-Blanks The nervous system is a connection of many different (1) _____________________ (nerve cells). These nerves form pathways that send messages all over the body, in many different directions. (2) ________ neurons detect specific kinds of environmental stimuli, (3) ___________________ ...
... Fill-in-the-Blanks The nervous system is a connection of many different (1) _____________________ (nerve cells). These nerves form pathways that send messages all over the body, in many different directions. (2) ________ neurons detect specific kinds of environmental stimuli, (3) ___________________ ...
Ch12.Nervous.Tissue_1
... Neuroglia in the CNS • Astrocytes most abundant glial cell type – Sense when neurons release glutamate – Extract blood sugar from capillaries for energy – Take up & release ions to control environment around neurons – Involved in synapse formation in developing neural ...
... Neuroglia in the CNS • Astrocytes most abundant glial cell type – Sense when neurons release glutamate – Extract blood sugar from capillaries for energy – Take up & release ions to control environment around neurons – Involved in synapse formation in developing neural ...
Stimulus – Response: Reaction Time - Science
... Movements are controlled by the CENTRAL NERVOUS SYSTEM - the brain, spinal column, and nerves. The central nervous system gets information from the outside through special systems called senses. (sight, sound, touch, taste, and smell). Your body has SENSORY RECEPTORS that produce electrical impulses ...
... Movements are controlled by the CENTRAL NERVOUS SYSTEM - the brain, spinal column, and nerves. The central nervous system gets information from the outside through special systems called senses. (sight, sound, touch, taste, and smell). Your body has SENSORY RECEPTORS that produce electrical impulses ...
Neurotox I
... e.g., MPP+ (toxic metabolite of MPTP) does not cross the BBB e.g., elemental mercury forms complex with cysteine and is recognized by ...
... e.g., MPP+ (toxic metabolite of MPTP) does not cross the BBB e.g., elemental mercury forms complex with cysteine and is recognized by ...
Axon
.svg?width=300)
An axon (from Greek ἄξων áxōn, axis), also known as a nerve fibre, is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body. The function of the axon is to transmit information to different neurons, muscles and glands. In certain sensory neurons (pseudounipolar neurons), such as those for touch and warmth, the electrical impulse travels along an axon from the periphery to the cell body, and from the cell body to the spinal cord along another branch of the same axon. Axon dysfunction causes many inherited and acquired neurological disorders which can affect both the peripheral and central neurons.An axon is one of two types of protoplasmic protrusions that extrude from the cell body of a neuron, the other type being dendrites. Axons are distinguished from dendrites by several features, including shape (dendrites often taper while axons usually maintain a constant radius), length (dendrites are restricted to a small region around the cell body while axons can be much longer), and function (dendrites usually receive signals while axons usually transmit them). All of these rules have exceptions, however.Some types of neurons have no axon and transmit signals from their dendrites. No neuron ever has more than one axon; however in invertebrates such as insects or leeches the axon sometimes consists of several regions that function more or less independently of each other. Most axons branch, in some cases very profusely.Axons make contact with other cells—usually other neurons but sometimes muscle or gland cells—at junctions called synapses. At a synapse, the membrane of the axon closely adjoins the membrane of the target cell, and special molecular structures serve to transmit electrical or electrochemical signals across the gap. Some synaptic junctions appear partway along an axon as it extends—these are called en passant (""in passing"") synapses. Other synapses appear as terminals at the ends of axonal branches. A single axon, with all its branches taken together, can innervate multiple parts of the brain and generate thousands of synaptic terminals.