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PHYSIOLOGICAL PSYCHOLOGY Chapter 2
PHYSIOLOGICAL PSYCHOLOGY Chapter 2

... The potential difference that exists across the membrane of all cells is usually negative inside the cell with respect to the outside. The membrane is said to be polarized. The potential difference across the membrane at rest is called the resting potential and is approximately -70 mV in neurons. (T ...
C48 Nervous System
C48 Nervous System

... o Axons – conduct signals toward tips, away from cell body; may be very long, in humans >1 m from spine to foot  Myelin sheath – insulating layer of many axons  Synaptic terminals – specialized endings of the axons which relay signals to other cells by releasing neurotransmitters (chemical messeng ...
Nervous System Review ANSWERS File
Nervous System Review ANSWERS File

... A. The neuron is gray or white coloured B. Sodium ions are part of the salt compound and they flow along the surface C. They rapidly die and dead tissues soon become gray or white D. It is mostly myelin sheath made of lipid or fat 32. Which of the following structures does NOT pertain to neurons? A. ...
kumc 05 nervous system review student
kumc 05 nervous system review student

... information to the cell body.  Usually several to many.  Relatively short.  Often branched.  Have receptors for neurotransmitters.  Conduct local potentials. ...
Nervous Systems - Groupfusion.net
Nervous Systems - Groupfusion.net

... communication between parts of nervous system. • Neurons are helped by numerous supporting cells, which provide structural support, protection, and insulation of neurons. ...
Neuron Structure
Neuron Structure

... • No THC in chocolate, but there are chemicals in choc that act like THC • You would have to eat 25 lbs of choc to get marijuana like effect • Choc also contains phenylethylamine, related to amphetamines • These raise blood pressure and cause blood sugar to rise causing alertness and contentment ...
Course Introduction: The Brain, chemistry, neural signaling
Course Introduction: The Brain, chemistry, neural signaling

... Transmission of information Information must be transmitted  within each neuron  and between neurons ...
Nervous - Lamont High
Nervous - Lamont High

... • No THC in chocolate, but there are chemicals in choc that act like THC • You would have to eat 25 lbs of choc to get marijuana like effect • Choc also contains phenylethylamine, related to amphetamines • These raise blood pressure and cause blood sugar to rise causing alertness and contentment ...
Biology 3201 - Corner Brook Regional High
Biology 3201 - Corner Brook Regional High

... imaging technique used to generate a three-dimensional image from a series of twodimensional X-ray images taken around a single axis of ...
Eagleman Ch 3. Neurons and Synapses
Eagleman Ch 3. Neurons and Synapses

... In the brain, there are approximately 100 billion neurons, each sending up to a few hundred action potentials per second.  The number of spikes per second is used to describe the neuron’s response to a stimulus. ...
Nervous system notes - FISD Teacher Web Sites
Nervous system notes - FISD Teacher Web Sites

... _____________________ - the basic structural unit of the nervous system  Consists of: o _______________ - contains the nucleus o _______________ - nerve fibers (carries impulses ___________ the cell body) o _______________ - single nerve fiber (carries impulses ___________ from the cell body) The N ...
What is EEG? Elana Zion
What is EEG? Elana Zion

... electrical current called “action potentials”. These are fleeting bursts of electricity that pass along a neuron’s nerve fiber. They bring about the release of chemical substances called “neurotransmitters,” which are absorbed by adjacent neurons. Action potentials occur at a rate of over 200 Hertz ...
A.1 Neural Development
A.1 Neural Development

... Immature neurons migrate to a final location ...
Unit A: Nervous and Endocrine Systems
Unit A: Nervous and Endocrine Systems

... • Neurons conduct an electrical impulse through the use of voltage differences • Nerve impulses are as strong at the end as at beginning ...
Nervous System
Nervous System

... information from all over the body 2. Interpretation-the brain then processes the information into possible responses 3. Response-sends messages back through the system of nerve cells to control body parts ...
The Nervous System: Basic Structure
The Nervous System: Basic Structure

... Axons- carries impulses away from the cell Myelin- insulates and protects the axon In multiple sclerosis, the myelin sheath is destroyed Speeds transmission of impulses ...
Chapter 6 Notes
Chapter 6 Notes

... 2. Take information from the organs to the CNS and from the CNS back to the organs d. Each is protected by something i. Brain by the skull and several layers of sheathing ii. Spinal cord by the vertebrae iii. Peripheral nerves by layers of sheathing e. Neurons (Figure 6.2) i. Nerves are long, thin c ...
Lecture 1 Brain Structure
Lecture 1 Brain Structure

... Myelination provides saltatory conduction. ...
Nervous system 1 - INAYA Medical College
Nervous system 1 - INAYA Medical College

...  Is the most complicated organ in the body  It has nerve cells called neurons (Neuron: is the basic unit in the nervous system, it is a specialized conductor cell that recieves & transmits nerve impulses( These neurons consist of 4 regions:  Dendrites: Are highly branched thick extensions that f ...
BIOLOGY AND BEHAVIOR
BIOLOGY AND BEHAVIOR

... • Acetylcholine – Ach. Most and best understood NT. Memory, sleep. Deteriorates with Alzheimers. • Dopamine – bodily movements – lack of causes Parkinson’s disease. Too much may cause schizophrenic episodes. • Endorphins: relieve pain and increase our sense of well-being. • Serotonin: our feel good ...
Nervous System (1)
Nervous System (1)

... The coordination and control of the various life activities within an organism. The ability to detect changes in the environment (stimuli) and respond to them. Is the essential to maintain stability (homeostasis) Regulation can be achieved through either Nervous control or chemical control. ...
The Nervous System WS-11A Review Quest
The Nervous System WS-11A Review Quest

... 2. What are the two primary cells of the nervous system, and what do they do? The two primary cells of the nervous system are neurons, that actually carry and store information, and glial cells that support the neurons. 3. What protects the brain? The brain is protected by the bones of the skull and ...
neurons
neurons

... Parkinson’s disease multiple sclerosis Alzheimer’s disease schizophrenia ...
Nervous System Function
Nervous System Function

... Black widow spider venom – released from axon terminals Botulinum toxin (Botox) – blocks release from axon terminals ...
Quiz - Web Adventures
Quiz - Web Adventures

... a) Observe how frog hearts work b) Re-create Nobel Prize experiments c) Test how insulin binds to blood cells d) Understand how opioids work in the brain 6) Feelings of pleasure are triggered in the brain’s Reward Pathway by: a) Insulin b) Endogenous opioids c) NSAIDs d) Estrogen 7) Neurons transmit ...
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Single-unit recording

In neuroscience, single-unit recordings provide a method of measuring the electro-physiological responses of single neurons using a microelectrode system. When a neuron generates an action potential, the signal propagates down the neuron as a current which flows in and out of the cell through excitable membrane regions in the soma and axon. A microelectrode is inserted into the brain, where it can record the rate of change in voltage with respect to time. These microelectrodes must be fine-tipped, high-impedance conductors; they are primarily glass micro-pipettes or metal microelectrodes made of platinum or tungsten. Microelectrodes can be carefully placed within (or close to) the cell membrane, allowing the ability to record intracellularly or extracellularly.Single-unit recordings are widely used in cognitive science, where it permits the analysis of human cognition and cortical mapping. This information can then be applied to brain machine interface (BMI) technologies for brain control of external devices.
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