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Chapter 2 PowerPoint
Chapter 2 PowerPoint

... Receive inputs from neighboring neurons Inputs may number in thousands If enough inputs, the cell’s AXON may generate an output ...
Types of neurons
Types of neurons

... Dendrites  Information collectors  Receive inputs from neighboring neurons  Inputs may number in thousands  If enough inputs the cell’s AXON may generate an output ...
Nervous System Notes File
Nervous System Notes File

... system, interprets them, and sends out a response iii. Impulses can move at speeds up to 280 miles per hour b. Peripheral Nervous System i. Nerves that extend from the brain, spinal cord and sensory receptors ii. Sensory receptors are found in places like the skin that sense pressure, temperature or ...
BIOPSYCHOLOGY notes
BIOPSYCHOLOGY notes

... Band of neural fibers that connecting the two brain hemispheres and carrying messages between them Controls the right side of the body, primary location for speech (Broca’s area), also specialized for math ability, calculation, and logic Controls the left side of the body, visual & spatial relations ...
CH 3 Practice Test
CH 3 Practice Test

... Skilled gymnasts and divers can perform smooth and expertly coordinated muscular movements thanks largely to their a. medulla b. cerebellum c. hippocampus d. thalamus e. corpus callosum ...
Nervous System - Science
Nervous System - Science

... • Small space across which an impulse moves from an axon to the dendrites or cell body of another neuron ...
PRACTICE QUIZ
PRACTICE QUIZ

... 10. The main difference between gustatory receptor cells and olfactory receptor cells is that _______________ ______________________________________________________________________________________ 11. Nasal mucus is produced by ______________________________________________________________ 12. Olfac ...
Nervous System
Nervous System

... Pathway for ascending and descending tracts Pons – in front of cerebellum, between midbrain and medulla – contains center that controls respiration Midbrain – vision and hearing Medulla oblongata – bulb-shaped structure between pons and spinal cord, inside the cranium above foramen magnum. Responsib ...
The Nervous System Lesson Outline LESSON 1 A.
The Nervous System Lesson Outline LESSON 1 A.

... is loss of muscle function and sometimes loss of feeling. The injured nerves can no longer send and receive signals. ...
Neuron is the basic working unit of the nervous system, specialized
Neuron is the basic working unit of the nervous system, specialized

... DENDRITE ‐ A treelike extension of the neuron cell body. The dendrite is the primary site for receiving  and integrating information from other neurons.   DOPAMINE ‐ A catecholamine neurotransmitter known to have varied functions depending on where it  acts. Dopamine‐containing neurons in the substa ...
(friendship) of neurons
(friendship) of neurons

... Lab One: A beginner’s guide to the spikerbox ...
Organization of Nervous System
Organization of Nervous System

... The motor cortex control the movement of the limbs on the opposite side of the body. The somatosensory cortex receives the sensory information from the opposite side of the body. ...
Cerebral cortex (top brain): Heavily wrinkled outer layer (gray matter
Cerebral cortex (top brain): Heavily wrinkled outer layer (gray matter

... and send information. surround  Each nerve cell has 100the brain. 1,000 fibers. ...
Integrated Listening Systems
Integrated Listening Systems

... Impacted Skills: behavior, ability to focus, the calm state which allows one to better focus on higher cognitive  functions  ...
Chapter 31 The Nervous System
Chapter 31 The Nervous System

... As it reaches the end of the axon, chemicals (neurotransmitters) are released across the synapse (gap between neurons) to the next neuron The message continues neuron to neuron ...
Central and Peripheral nervous systems
Central and Peripheral nervous systems

... therefore it sends commands to other parts of the body to perform them 6 main parts: cerebrum, cerebellum, brain stem, diencephalon, limbic system, reticular activating system ...
Biology
Biology

... Sensory- carry messages from sense organs to spinal cord or brain Motor- carry messages from spinal cord or brain to muscles or glands Interneurons- carry messages from one neuron to another and do most of the work of the nervous system ...
The Nervous System WS-11A Review Quest
The Nervous System WS-11A Review Quest

... Sensory neurons that are capable of receiving stimuli, and motor neurons are capable of responding to stimuli. For example, sensory neurons in the eye are capable of receiving light stimuli and motor neurons are attached to muscles that can create movement. 5. How many neurons are found in the human ...
Spinal Cord - Northside Middle School
Spinal Cord - Northside Middle School

... poles of the cell soma. Can you identify the structure curving into the field from the upper left? It is a blood capillary with several astrocyte processes attached ...
Biology The Nervous System
Biology The Nervous System

... information from other neurons and pass the message through the cell body Axon- carries messages away from the neuron, single fiber Myelin- covering of the axon, insulates and protects the axon, helps to speed up the transmission of the message Axon terminal- small fibers branching out from an axon ...
Perception, learning and memory - Max-Planck
Perception, learning and memory - Max-Planck

... Neurons are the most diverse cell type in the body. They are usually polarized with specialized projections for receiving (dendrites) and relaying (axons) information (Fig. 2). Sensory neurons convert external stimuli, such as light, sound or pressure, into electrical signals, whereas motor neurons ...
Computer Research II Drugs and Mind
Computer Research II Drugs and Mind

... 6b. Draw a normal neuron. 7b. Neurons can be classified by the direction they send information: ...
9.1-9.4 Notes
9.1-9.4 Notes

... levels, form scar tissue when injury occurs to the CNS ...
The Biology of the Brain
The Biology of the Brain

... • d) carry out basic cellular processes such as protein synthesis and energy production. Different • a) have specialized extensions called dendrites and axons that bring information to and take it away from the cell body (respectively). • b) communicate with each other through electrochemical proces ...
NERVOUS SYSTEM
NERVOUS SYSTEM

... • Peripheral Nervous system (PNS) • Nerves that carry impulses to and from CNS ...
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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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