PHYSIOLOGICAL PSYCHOLOGY UNIVERSITY OF CALICUT SCHOOL OF DISTANCE EDUCATION BSc Counselling Psychology
... 67. Areas that include large number of cell bodies are called __________________. a. White matter c. Ganglia b. Gray matter d. Nerve 68. When the action potential reaches the axon ending, it causes tiny bubbles of chemicals called ____________________ to release their contents into the synaptic gap. ...
... 67. Areas that include large number of cell bodies are called __________________. a. White matter c. Ganglia b. Gray matter d. Nerve 68. When the action potential reaches the axon ending, it causes tiny bubbles of chemicals called ____________________ to release their contents into the synaptic gap. ...
The eye
... « Take Home Message » Phototransduction • At rest (in darkness) darkness), cGMP maintains sodium channels open and entrance of sodium thus depolarizes the photoreceptor at a value of -40 mV mV, a stable resting potential corresponding to a so-called darkness current (entrance sodium, exit of potass ...
... « Take Home Message » Phototransduction • At rest (in darkness) darkness), cGMP maintains sodium channels open and entrance of sodium thus depolarizes the photoreceptor at a value of -40 mV mV, a stable resting potential corresponding to a so-called darkness current (entrance sodium, exit of potass ...
1 NOTES – CHAPTER 9 (Brief) The Nervous System – LECTURE
... A. Neurons – receive and transmit stimuli (action potentials) to effectors or other neurons; these are nonreproductive cells; have three (3) major parts: 1. Cell Body – contains the nucleus a. site of protein synthesis; if axon is separated from cell body, it will die because no new proteins are bei ...
... A. Neurons – receive and transmit stimuli (action potentials) to effectors or other neurons; these are nonreproductive cells; have three (3) major parts: 1. Cell Body – contains the nucleus a. site of protein synthesis; if axon is separated from cell body, it will die because no new proteins are bei ...
Nervous System Communication
... Nerve Transmission • Action potential at one point depolarizes next area • Depolarization moves in self-propagating wave ...
... Nerve Transmission • Action potential at one point depolarizes next area • Depolarization moves in self-propagating wave ...
Optogenetics and the Circuit Dynamics of Psychiatric
... complemented by recent advances in observing (reading out) neural circuit activity and connectivity, providing key complementary data streams. Preclinical and ex vivo methods in this regard1 have made substantial advances. For instance, it is now possible to observe detailed neural wiring diagrams a ...
... complemented by recent advances in observing (reading out) neural circuit activity and connectivity, providing key complementary data streams. Preclinical and ex vivo methods in this regard1 have made substantial advances. For instance, it is now possible to observe detailed neural wiring diagrams a ...
Neuron Function 2
... 1. An arriving action potential depolarizes the synaptic knob 2. Ca+2 ions enter the cytoplasm of the synaptic knob. 3. ACh release occurs through diffusion and exocytosis of neurotransmitter vesicles 4. ACh diffuses across the synaptic cleft and binds to receptors on the postsynaptic membrane. ...
... 1. An arriving action potential depolarizes the synaptic knob 2. Ca+2 ions enter the cytoplasm of the synaptic knob. 3. ACh release occurs through diffusion and exocytosis of neurotransmitter vesicles 4. ACh diffuses across the synaptic cleft and binds to receptors on the postsynaptic membrane. ...
Note: This hypothesis is mainly concerned with peripheral neurons
... Apoptosis: originally defined according to a set of characteristic ultrastructural features that include nuclear and cytoplasmic condensation, cell fragmentation and phagocytosis. ...
... Apoptosis: originally defined according to a set of characteristic ultrastructural features that include nuclear and cytoplasmic condensation, cell fragmentation and phagocytosis. ...
What are Neurons
... Interneurons are responsible for communicating information between different neurons in the body. ...
... Interneurons are responsible for communicating information between different neurons in the body. ...
File
... • One long axon with cell body that may • Found entirely in CNS be near source of stimuli or in swelling of a spinal nerve (GANGLION) • Dendron is usually longer than the axon • Contains many dendrites • Some are myelinated • May form synapse with relay neuron ...
... • One long axon with cell body that may • Found entirely in CNS be near source of stimuli or in swelling of a spinal nerve (GANGLION) • Dendron is usually longer than the axon • Contains many dendrites • Some are myelinated • May form synapse with relay neuron ...
Cell Biology Part II Notes
... adjacent cells may hook together in various kinds of junctions, such as gap junctions or tight junctions. ...
... adjacent cells may hook together in various kinds of junctions, such as gap junctions or tight junctions. ...
Document
... For communication to occur between cells, the signal must be transferred across this gap Function: ...
... For communication to occur between cells, the signal must be transferred across this gap Function: ...
Structure of the Inner Ear
... • Fills scala media • Ionic composition similar to intracellular fluid (high K+, low Na+). • Stria vascularis actively pumps ions against concentration gradients to maintain ion balance in endolymph. ...
... • Fills scala media • Ionic composition similar to intracellular fluid (high K+, low Na+). • Stria vascularis actively pumps ions against concentration gradients to maintain ion balance in endolymph. ...
NeuroCube Help
... simulation. After setting all these parameters, click ‘Generate cube’ and the distribution of neurons will be created. Figure 2 shows the interface after clicking ‘Generate cube’. Instead of clicking ‘Generate cube’, you could also have clicked ‘Load cube’ if you wanted to load a neuron configurati ...
... simulation. After setting all these parameters, click ‘Generate cube’ and the distribution of neurons will be created. Figure 2 shows the interface after clicking ‘Generate cube’. Instead of clicking ‘Generate cube’, you could also have clicked ‘Load cube’ if you wanted to load a neuron configurati ...
Large-scale recording of neuronal ensembles
... However, the potential conclusion from an depolarization and discharge frequency. (c) Attenuation of spike backpropagation during a complex experiment reporting that all cortical pyramspike burst. Note progressive amplitude change at dendritic recording sites (arrowheads). idal cells did one thing a ...
... However, the potential conclusion from an depolarization and discharge frequency. (c) Attenuation of spike backpropagation during a complex experiment reporting that all cortical pyramspike burst. Note progressive amplitude change at dendritic recording sites (arrowheads). idal cells did one thing a ...
103 Lecture Ch18b
... promoting re-absorbtion of Na+, Cl- and HCO3- by the kidneys • Prednisone is a synthetic corticoid used to treat various inflammatory conditions, such as asthma and rheumatoid arthritis ...
... promoting re-absorbtion of Na+, Cl- and HCO3- by the kidneys • Prednisone is a synthetic corticoid used to treat various inflammatory conditions, such as asthma and rheumatoid arthritis ...
File
... Neurotransmitters attach to specific receptor sites and causes sodium channels to open resulting in a depolarization in the membrane. An action potential is created and the impulse travels down the neuron. Diffusion takes time, so the more synapses involved, the slower the ...
... Neurotransmitters attach to specific receptor sites and causes sodium channels to open resulting in a depolarization in the membrane. An action potential is created and the impulse travels down the neuron. Diffusion takes time, so the more synapses involved, the slower the ...
02.23.06 Lecture 17
... Movements of autonomous cells or cortex they send out axons that stretch specialized cellular structures into other parts of the brain Chemoattractant ...
... Movements of autonomous cells or cortex they send out axons that stretch specialized cellular structures into other parts of the brain Chemoattractant ...
Chapter No. 1 CELL AND CELL BIOLOGY – AN INTRODUCTION
... 1. All organisms are made up of cells or cell products (with exception of viruses). 2. New cells are always produced from pre-existing cells. 3. The cell is a structural and functional unit of all living things. 4. Cell contains hereditary information which is passed on from cell to cell during cell ...
... 1. All organisms are made up of cells or cell products (with exception of viruses). 2. New cells are always produced from pre-existing cells. 3. The cell is a structural and functional unit of all living things. 4. Cell contains hereditary information which is passed on from cell to cell during cell ...
15-1 Section Summary
... he nervous system receives information about what is happening both inside and outside your body. It also directs the way in which your body responds to this information. In addition, the nervous system helps in maintaining stable internal conditions. A stimulus is any change or signal in the enviro ...
... he nervous system receives information about what is happening both inside and outside your body. It also directs the way in which your body responds to this information. In addition, the nervous system helps in maintaining stable internal conditions. A stimulus is any change or signal in the enviro ...
Open Document - Clinton Community College
... ◦ E.) Terminal Buttons- Axon ends with a cluster of these small knobs secreting chemicals known as neurotransmitters. ◦ F.) Synapse – A “Gap” or junction where information is transmitted from one neuron to another. ...
... ◦ E.) Terminal Buttons- Axon ends with a cluster of these small knobs secreting chemicals known as neurotransmitters. ◦ F.) Synapse – A “Gap” or junction where information is transmitted from one neuron to another. ...
Nervous System - Dr. Eric Schwartz
... 6–13b). This is because in a resting membrane there are a greater number of open K+ channels than there are Na+ channels. Because there is greater net efflux than influx of positive ions during this step, a significant negative membrane potential develops, with the value approaching that of the K+ e ...
... 6–13b). This is because in a resting membrane there are a greater number of open K+ channels than there are Na+ channels. Because there is greater net efflux than influx of positive ions during this step, a significant negative membrane potential develops, with the value approaching that of the K+ e ...
Nervous System
... stored in vesicles in the axon terminals. Impulse reaches terminal opens calcium channels Calcium enters the terminal vesicles move toward membrane for exocytosis neurotransmitters are released and diffuse through synaptic cleft neurotransmitters bind with receptors on postsynaptic membrane. ...
... stored in vesicles in the axon terminals. Impulse reaches terminal opens calcium channels Calcium enters the terminal vesicles move toward membrane for exocytosis neurotransmitters are released and diffuse through synaptic cleft neurotransmitters bind with receptors on postsynaptic membrane. ...
Halle Berry as a Computational Brain Abstraction
... understanding the brain’s computational method of mechanically holding abstraction, yet do not disqualify the theories of either the “grandmother cell” or of distributed representation. Conceptual abstractions are the ...
... understanding the brain’s computational method of mechanically holding abstraction, yet do not disqualify the theories of either the “grandmother cell” or of distributed representation. Conceptual abstractions are the ...
Cell Motility
... 2. Microtubule-based motility Three different mechanisms: a) Assembly and disassembly b) Transport along MTs by motor proteins c) Sliding of MTs ...
... 2. Microtubule-based motility Three different mechanisms: a) Assembly and disassembly b) Transport along MTs by motor proteins c) Sliding of MTs ...
Electrophysiology
Electrophysiology (from Greek ἥλεκτρον, ēlektron, ""amber"" [see the etymology of ""electron""]; φύσις, physis, ""nature, origin""; and -λογία, -logia) is the study of the electrical properties of biological cells and tissues. It involves measurements of voltage change or electric current on a wide variety of scales from single ion channel proteins to whole organs like the heart. In neuroscience, it includes measurements of the electrical activity of neurons, and particularly action potential activity. Recordings of large-scale electric signals from the nervous system such as electroencephalography, may also be referred to as electrophysiological recordings.