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Science in Motion
Science in Motion

... the brain are involved in this visuomotor activity that incorporate the necessary sensory information and control the motor output. As the student throws the beanbags and identifies the target, reflected light from the target enters the eye. The retina transduces this light into an appropriate signa ...
Neurons and Astrocytes
Neurons and Astrocytes

... needs some nerves — actually a lot of them. And it needs the spinal cord, which is a long bundle of nerves inside your spinal column, the vertebrae that protect it. It's the spinal cord and nerves — known as the nervous system — that let messages flow back and forth between the brain and body. – You ...
Griggs_Chapter_02_Neuroscience
Griggs_Chapter_02_Neuroscience

... 1. Acetylcholine (ACh) is involved in both learning and memory and muscle movement 2. Dopamine impacts our arousal and mood states, thought processes, and physical movement 3. Serotonin and norepinephrine are neurotransmitters involved in levels of arousal and mood, and play a major role in mood dis ...
Chapter 32 The Nervous System, Cells of the Nervous System
Chapter 32 The Nervous System, Cells of the Nervous System

... (not conducting an impulse) Cell membrane is polarized (charged). Resting potential = -70 mV (millivolts) ...
Nervous System Notes
Nervous System Notes

... extensions at the end of neurons to receive info. b. Axon- fibers that transmit information. c. Synapse – space between the receptors and the axon. ...
Temporal Lobe - socialscienceteacher
Temporal Lobe - socialscienceteacher

... – has areas for vision, hearing, eye and body movement 1. contains the reticular formation, which arouses the forebrain so that it is ready to process information from the senses – essential for processing voluntary motor movement 2. VTA: mechanism greatly involved in the feeling of pleasure 3. Nucl ...
CHAPTER 4: Physical, Motor, and Sensory Development
CHAPTER 4: Physical, Motor, and Sensory Development

... Gray matter consists of nerve cell bodies, which are grayish in color. Kinesthetic perception is the sensation of position, movement, and tension in parts of the body perceived through the nerves in the muscles, tendons, and joints. Limbic system consists of the structures of the brain involved in e ...
The Human Nervous System
The Human Nervous System

... stimulant that causes actual physical changes to the brain. It effects the level of dopamine in the brain and is highly addictive. Stimulants will increase the activity of the Central ...
The Nervous System - Plain Local Schools
The Nervous System - Plain Local Schools

... • Neurons have the ability to conduct nerve impulses very quickly, but how does one cell communicate with another cell? • Adjacent neurons communicate by releasing chemicals across tiny gaps that separate them, called synapses (synaptic cleft) • The chemicals, known as neurotransmitters, are release ...
Module 3 - socialscienceteacher
Module 3 - socialscienceteacher

... Module 3 The Neuron ...
PTA 150 Day 1 Neuroanatomy
PTA 150 Day 1 Neuroanatomy

...  Some receptors can adjust themselves so sensation becomes less acute  Receptors adapt at different rates  Pain receptors do not adapt ...
09. Assessment of Neurologic System
09. Assessment of Neurologic System

... Parasympathetic nervous system Controls vegetative functions (breed and feed) Conserving energy: decrease heart rate and force of myocardial contraction, decrease blood pressure and respiration and stimulate gastrointestinal peristalsis ...
4-Nervous system I: Structure and organization
4-Nervous system I: Structure and organization

... Harwood, P. 1963. Therapeutic dosage in small and large mammals . Science 139: 684-685. ...
Griggs Chapter 2: Neuroscience
Griggs Chapter 2: Neuroscience

... 1. Acetylcholine (ACh) is involved in both learning and memory and muscle movement 2. Dopmaine impacts our arousal and mood states, thought processes, and physical movement 3. Serotonin and norepinephrine are neurotransmitters involved in levels of arousal and mood, and play a major role in mood dis ...
The Nervous System - Catherine Huff`s Site
The Nervous System - Catherine Huff`s Site

... • May play role in regulation of autonomic functions such as respiration and vomiting ...
The Nervous System
The Nervous System

... • May play role in regulation of autonomic functions such as respiration and vomiting ...
Quiz scorers
Quiz scorers

... says Dwight Bergles, Ph.D., an associate professor of neuroscience at Hopkins. The discovery focuses on oligodendrocyte precursor cells (OPCs), whose main role when they mature into oligodendrocytes is to wrap themselves around and insulate nerves with a whitish coat of protective myelin. The immatu ...
3 - smw15.org
3 - smw15.org

...  Complex beyond comprehension  Although, human brains are more complex our nervous systems and those of animals operate in a similar fashion ...
Sensory Systems
Sensory Systems

... Stress hormones have wide-ranging effects on the body. They are released into the body when the brain receives the signal that danger is near. One of these stress hormones is cortisol. Cortisol gets glucose (energy) into our bodies and also helps rev up the sympathetic nervous system (heart rate), i ...
ANPS 019 Beneyto-Santonja 11-26
ANPS 019 Beneyto-Santonja 11-26

... Dural Septa divide up the brain, help support the weight of the cerebrum  Falx cerebri o Separates the 2 cerebral hemispheres o Protects brain from lateral movements  Tentorium cerebellum o Separate cerebellum and cerebrum o Protects brain from up/down movement How is blood turned into CSF?  CSF ...
create opposite responses in the effectors
create opposite responses in the effectors

... - spider web arrangement of delicate collagen fibers and some elastic 3. Pia Mater - thin transparent connective tissue that adheres to surface of brain or spinal cord - interlacing bundles of collagen and fine elastic fibers - contains many blood vessels to supply oxygen and nutrients ...
Chapter 7 Body Systems
Chapter 7 Body Systems

...  maintain posture during movement  transmit impulses that coordinate body movements and maintenance of posture  head and neck movements during visual reflexes  coordination of posture and balance ...
Document
Document

... electrical info is transmitted along the neuron’s axon – When an action potential reaches the terminal bouton, the bouton secretes a chemical substance called a neurotransmitter ...
File
File

... The neurons affected by drugs introduced to the body are in the ventral tegmental area (VTA). Those cells extend their axons to nerve cells in an area of the brain called the nucleus accumbens. Some nerve fibers extend to part of the frontal region of the cerebral cortex. ...
Module 1: The Brain and the Central Nervous System (CNS
Module 1: The Brain and the Central Nervous System (CNS

... further divided into 4 lobes. The role of the cerebrum will now be looked at in more detail, as this part of the brain performs the very specific functions that make us individual. A Tale of Two Halves The cerebrum is divided into two halves which are joined in the middle. Both of these halves are r ...
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Brain



The brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Only a few invertebrates such as sponges, jellyfish, adult sea squirts and starfish do not have a brain; diffuse or localised nerve nets are present instead. The brain is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste, and smell. The brain is the most complex organ in a vertebrate's body. In a typical human, the cerebral cortex (the largest part) is estimated to contain 15–33 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells.Physiologically, the function of the brain is to exert centralized control over the other organs of the body. The brain acts on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. This centralized control allows rapid and coordinated responses to changes in the environment. Some basic types of responsiveness such as reflexes can be mediated by the spinal cord or peripheral ganglia, but sophisticated purposeful control of behavior based on complex sensory input requires the information integrating capabilities of a centralized brain.The operations of individual brain cells are now understood in considerable detail but the way they cooperate in ensembles of millions is yet to be solved. Recent models in modern neuroscience treat the brain as a biological computer, very different in mechanism from an electronic computer, but similar in the sense that it acquires information from the surrounding world, stores it, and processes it in a variety of ways, analogous to the central processing unit (CPU) in a computer.This article compares the properties of brains across the entire range of animal species, with the greatest attention to vertebrates. It deals with the human brain insofar as it shares the properties of other brains. The ways in which the human brain differs from other brains are covered in the human brain article. Several topics that might be covered here are instead covered there because much more can be said about them in a human context. The most important is brain disease and the effects of brain damage, covered in the human brain article because the most common diseases of the human brain either do not show up in other species, or else manifest themselves in different ways.
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