nervous system
... • Presynaptic cell – transmitting cell • Postsynaptic cell – receiving cell • Two types of synapses – Electrical • Need gap junctions (channels between neurons) • No delays – Chemical • Narrow gap, synaptic cleft, between cells • More common than electrical in vertebrates and most invertebrates • Re ...
... • Presynaptic cell – transmitting cell • Postsynaptic cell – receiving cell • Two types of synapses – Electrical • Need gap junctions (channels between neurons) • No delays – Chemical • Narrow gap, synaptic cleft, between cells • More common than electrical in vertebrates and most invertebrates • Re ...
Anatomy and Physiology Unit 7
... 43. What is the major difference between gray matter and white matter in the CNS? Gray matter—contains mostly unmyelinated fibers and cell bodies White matter—consists of dense collections of myelinated fibers (tracts) 44. The __corpus callosum_____ connects the two hemispheres of the brain. 45. The ...
... 43. What is the major difference between gray matter and white matter in the CNS? Gray matter—contains mostly unmyelinated fibers and cell bodies White matter—consists of dense collections of myelinated fibers (tracts) 44. The __corpus callosum_____ connects the two hemispheres of the brain. 45. The ...
Chapter 02: Neurons and Glia
... Dendritic membrane (postsynaptic membrane) contains many specialized receptors for neurotransmitters Dendritic spines Some neurons have these structures for receiving some types of inputs Discovered by Cajal Believed to isolate various chemical reactions Dynamic structures affected by the type and a ...
... Dendritic membrane (postsynaptic membrane) contains many specialized receptors for neurotransmitters Dendritic spines Some neurons have these structures for receiving some types of inputs Discovered by Cajal Believed to isolate various chemical reactions Dynamic structures affected by the type and a ...
Frequently asked questions Psychology 1010.06M A Biologically-Oriented
... • increase speed of neurons ...
... • increase speed of neurons ...
Nervous System - Creston High School
... Exists between the axon of one neuron and the dendrite of another. Neurons can have a large number connecting to numerous other neurons. (This accounts for the complexity of the nervous system) When an action potential reaches the end of an axon, neurotransmitters are stimulated to flood the gap and ...
... Exists between the axon of one neuron and the dendrite of another. Neurons can have a large number connecting to numerous other neurons. (This accounts for the complexity of the nervous system) When an action potential reaches the end of an axon, neurotransmitters are stimulated to flood the gap and ...
PPT File - Holden R
... • Receptor: Interaction of stimulus with sensory receptor produces a local potential – Primary: Have axons that conduct action potential in response to receptor potential – Secondary: Have no axons and receptor potentials produced do not result in action potentials but cause release of neurotransmit ...
... • Receptor: Interaction of stimulus with sensory receptor produces a local potential – Primary: Have axons that conduct action potential in response to receptor potential – Secondary: Have no axons and receptor potentials produced do not result in action potentials but cause release of neurotransmit ...
Chapter 14
... • Receptor: Interaction of stimulus with sensory receptor produces a local potential – Primary: Have axons that conduct action potential in response to receptor potential – Secondary: Have no axons and receptor potentials produced do not result in action potentials but cause release of neurotransmit ...
... • Receptor: Interaction of stimulus with sensory receptor produces a local potential – Primary: Have axons that conduct action potential in response to receptor potential – Secondary: Have no axons and receptor potentials produced do not result in action potentials but cause release of neurotransmit ...
Revision material
... Describe the somatosensory pathways in the mammalian central nervous system. What are the principal differences between control of eye movements and limb movements? The fly employs a number of different sensory mechanisms to keep its eyes aligned with the external horizon irrespective body orientati ...
... Describe the somatosensory pathways in the mammalian central nervous system. What are the principal differences between control of eye movements and limb movements? The fly employs a number of different sensory mechanisms to keep its eyes aligned with the external horizon irrespective body orientati ...
Problems with Imbalance
... This multimedia product and its contents are protected under copyright law. The following are prohibited by law: any public performance or display, including transmission of any image over a network; preparation of any derivative work, including the extraction, in whole or part, of any images; any r ...
... This multimedia product and its contents are protected under copyright law. The following are prohibited by law: any public performance or display, including transmission of any image over a network; preparation of any derivative work, including the extraction, in whole or part, of any images; any r ...
Biology 12 - The Nervous System Study Guide
... 24. How do neuro-poisons such as strychnine and nerve gas work? What are the symptoms of exposure? 25. How do narcotics such as heroin and morphine work? 26. Explain the biochemical events that occur when an impulse is transmitted through a reflex arc. Begin with the opening of the sodium gates in a ...
... 24. How do neuro-poisons such as strychnine and nerve gas work? What are the symptoms of exposure? 25. How do narcotics such as heroin and morphine work? 26. Explain the biochemical events that occur when an impulse is transmitted through a reflex arc. Begin with the opening of the sodium gates in a ...
Objective 1 | Explain why psychologists are concerned with human
... encased in a myelin sheath. Neurons receive signals from other cells through their branching dendrites and their cell body. If the combined signals are strong enough, the neuron fires, transmitting an electrical impulse (the action potential) down its axon, by means of a chemistry-to-electricity pro ...
... encased in a myelin sheath. Neurons receive signals from other cells through their branching dendrites and their cell body. If the combined signals are strong enough, the neuron fires, transmitting an electrical impulse (the action potential) down its axon, by means of a chemistry-to-electricity pro ...
Ch02
... necessary? How is information transmitted from one place to another in the nervous system? How are things in the environment, such as faces and trees, represented in the brain? Is it possible to read a person’s mind by measuring the activity of the person’s brain? ...
... necessary? How is information transmitted from one place to another in the nervous system? How are things in the environment, such as faces and trees, represented in the brain? Is it possible to read a person’s mind by measuring the activity of the person’s brain? ...
Unit Test Neuro: Core ( Topic 6.5) and Options E ( Topics 1,2,4) HL
... Unit Test Neuro: Core ( Topic 6.5) and Options E ( Topics 1,2,4) HL ( E.5- portions) 6.5.1 State that the nervous system consists of the central nervous system (CNS) and peripheral nerves and is composed of cells called neurons that can carry rapid electrical impulses. (1) ...
... Unit Test Neuro: Core ( Topic 6.5) and Options E ( Topics 1,2,4) HL ( E.5- portions) 6.5.1 State that the nervous system consists of the central nervous system (CNS) and peripheral nerves and is composed of cells called neurons that can carry rapid electrical impulses. (1) ...
Chapter 2 - Biological Basis of Behavior
... to be pushed into the synapse so that focus is improved BUT cause a depletion over time Acetylcholine triggers muscle contraction important role in arousal and attention Loss = linked to Alzheimer’s Disease ...
... to be pushed into the synapse so that focus is improved BUT cause a depletion over time Acetylcholine triggers muscle contraction important role in arousal and attention Loss = linked to Alzheimer’s Disease ...
Neuroplasticity
... structure in response to abnormal input, the prevailing view that we are born with a hardwired system had to be wrong, therefore the brain had to be plastic. • Results: They realised that the hand map in the brain that was expected to be jumbled was nearly normal. Merzenich concluded that if the bra ...
... structure in response to abnormal input, the prevailing view that we are born with a hardwired system had to be wrong, therefore the brain had to be plastic. • Results: They realised that the hand map in the brain that was expected to be jumbled was nearly normal. Merzenich concluded that if the bra ...
Introduction to the Brain
... Copyright Headway, 2011. This is one of a range of factsheets made available by Headway. We have taken great care to ensure all information is accurate but these factsheets are only intended as a guide and recommend that medical or professional support should be sought. Headway will not be held resp ...
... Copyright Headway, 2011. This is one of a range of factsheets made available by Headway. We have taken great care to ensure all information is accurate but these factsheets are only intended as a guide and recommend that medical or professional support should be sought. Headway will not be held resp ...
Introduction to the Brain
... Copyright Headway, 2009. This is one of a range of factsheets made available by Headway. We have taken great care to ensure all information is accurate but these factsheets are only intended as a guide and recommend that medical or professional support should be sought. Headway will not be held resp ...
... Copyright Headway, 2009. This is one of a range of factsheets made available by Headway. We have taken great care to ensure all information is accurate but these factsheets are only intended as a guide and recommend that medical or professional support should be sought. Headway will not be held resp ...
Nervous System Graphics - Beacon Learning Center
... Nervous System Comprehension Questions (to be used after the reading, with the Nervous System Graphic) ...
... Nervous System Comprehension Questions (to be used after the reading, with the Nervous System Graphic) ...
Modeling the brain
... and absorbed by receptor Absorbtion make receptor change membrane voltage ...
... and absorbed by receptor Absorbtion make receptor change membrane voltage ...
Methods to Study the Brain
... photographs, which are then put together to form a threedimensional image. ...
... photographs, which are then put together to form a threedimensional image. ...
Methods to Study the Brain - Grand Haven Area Public Schools
... photographs, which are then put together to form a threedimensional image. ...
... photographs, which are then put together to form a threedimensional image. ...
Overview of the Day
... Peripheral Nervous System (carries info. to and from the CNS) somatic/skeletal nervous system (controls voluntary movement of skeletal muscles autonomic nervous system (controls glands and muscles of internal organs [e.g., heart]). The sympathetic and parasympathetic systems work together to k ...
... Peripheral Nervous System (carries info. to and from the CNS) somatic/skeletal nervous system (controls voluntary movement of skeletal muscles autonomic nervous system (controls glands and muscles of internal organs [e.g., heart]). The sympathetic and parasympathetic systems work together to k ...
PPt #2 Human Body Nervous system
... Dendrites : recieve chemical signals from neighboring cells. Cell Body: contains the nucleus & organelles Axon: long extension that carries electrical messages away from the body to the terminal axons Terminal Axons: passes the signal to the next cell. Myelin sheath: Protective covering for ...
... Dendrites : recieve chemical signals from neighboring cells. Cell Body: contains the nucleus & organelles Axon: long extension that carries electrical messages away from the body to the terminal axons Terminal Axons: passes the signal to the next cell. Myelin sheath: Protective covering for ...