Introduction to Psychology: Final Exam
... Mini-match: Match items A-E with the questions that they answer (26-30). A. medulla B. cerebellum C. reticular formation D. thalamus E. hypothalamus D 25. This structure sits on top of the brain stem and directs information from all the sensory organs except the nose to where it needs to go in the c ...
... Mini-match: Match items A-E with the questions that they answer (26-30). A. medulla B. cerebellum C. reticular formation D. thalamus E. hypothalamus D 25. This structure sits on top of the brain stem and directs information from all the sensory organs except the nose to where it needs to go in the c ...
Nervous system
... The somatic nervous system voluntary nervous system The autonomic nervous system involuntary nervous system Sympathetic and parasympathetic ...
... The somatic nervous system voluntary nervous system The autonomic nervous system involuntary nervous system Sympathetic and parasympathetic ...
Chapter Outline
... • Rostral (toward the forehead) - Caudal (toward the cord) • Major parts of the brain - cerebrum, cerebellum, brainstem – cerebrum is 83% of brain volume; cerebellum contains 50% of the neurons – brain weighs 3 to 3.5 pounds ...
... • Rostral (toward the forehead) - Caudal (toward the cord) • Major parts of the brain - cerebrum, cerebellum, brainstem – cerebrum is 83% of brain volume; cerebellum contains 50% of the neurons – brain weighs 3 to 3.5 pounds ...
Biology 30 NERVOUS SYSTEM
... 2. the frequency at which the neurons fire 3. the threshold level of different neurons (lower threshold neurons are more likely to fire, and are found in more “sensitive” ...
... 2. the frequency at which the neurons fire 3. the threshold level of different neurons (lower threshold neurons are more likely to fire, and are found in more “sensitive” ...
Brain Learning
... neurons remained speculation. Now, there is direct evidence that when learning occurs, neuro-chemical communication between neurons is facilitated, and less input is required to activate established connections over time. New evidence also indicates that learning creates connections between not only ...
... neurons remained speculation. Now, there is direct evidence that when learning occurs, neuro-chemical communication between neurons is facilitated, and less input is required to activate established connections over time. New evidence also indicates that learning creates connections between not only ...
PsychScich03
... • Broca (1861) provided the first strong evidence that brain regions perform specialized functions (Broca’s area) • Modern imaging techniques have greatly advanced our understanding of the human brain ...
... • Broca (1861) provided the first strong evidence that brain regions perform specialized functions (Broca’s area) • Modern imaging techniques have greatly advanced our understanding of the human brain ...
Brain Neurotransmitters
... The more dendrites a cell has the more neurons it can communicate with. ...
... The more dendrites a cell has the more neurons it can communicate with. ...
Slide 1
... – gap between Schwann cells – serves as points along the neuron for generating a signal – signals jumping from node to node travel hundreds of times faster than signals traveling along the surface of the axon. – allows your brain to communicate with your toes in a few thousandths of a second. • Insu ...
... – gap between Schwann cells – serves as points along the neuron for generating a signal – signals jumping from node to node travel hundreds of times faster than signals traveling along the surface of the axon. – allows your brain to communicate with your toes in a few thousandths of a second. • Insu ...
Unit 03B
... can be identified by the text being underlined and a different color (usually purple). – Unit subsections hyperlinks: Immediately after the unit title slide, a page (slide #3) can be found listing all of the unit’s subsections. While in slide show mode, clicking on any of these hyperlinks will take ...
... can be identified by the text being underlined and a different color (usually purple). – Unit subsections hyperlinks: Immediately after the unit title slide, a page (slide #3) can be found listing all of the unit’s subsections. While in slide show mode, clicking on any of these hyperlinks will take ...
Nervous System Notes
... – gap between Schwann cells – serves as points along the neuron for generating a signal – signals jumping from node to node travel hundreds of times faster than signals traveling along the surface of the axon. – allows your brain to communicate with your toes in a few thousandths of a second. • Insu ...
... – gap between Schwann cells – serves as points along the neuron for generating a signal – signals jumping from node to node travel hundreds of times faster than signals traveling along the surface of the axon. – allows your brain to communicate with your toes in a few thousandths of a second. • Insu ...
The Sympathetic Nervous System
... The cell membrane of a resting neuron carries an electric charge. At rest, the inside of the membrane is negative and the outside is positive. This state is said to be polarized (ready for action!). A nerve impulse starts when a stimulus causes a reversal in the electrical charge (action potential), ...
... The cell membrane of a resting neuron carries an electric charge. At rest, the inside of the membrane is negative and the outside is positive. This state is said to be polarized (ready for action!). A nerve impulse starts when a stimulus causes a reversal in the electrical charge (action potential), ...
chapter32_part2
... • Tumors can also arise from epithelial cells in the meninges or endocrine glands of the brain, such as the pituitary • Most tumors that originate in the brain are not cancer – however, even a benign tumor can pose a serious threat ...
... • Tumors can also arise from epithelial cells in the meninges or endocrine glands of the brain, such as the pituitary • Most tumors that originate in the brain are not cancer – however, even a benign tumor can pose a serious threat ...
Chapter 15 - Austin Community College
... white matter are “roads” of ordered groups of neuron processes called tracts. There are three major types of tracts in the cerebral cortex: 1. Commissural fibers – connect the gray matter between the two hemispheres. e.g. corpus callosum 2. Association fibers – connect adjacent gyri in same hemisphe ...
... white matter are “roads” of ordered groups of neuron processes called tracts. There are three major types of tracts in the cerebral cortex: 1. Commissural fibers – connect the gray matter between the two hemispheres. e.g. corpus callosum 2. Association fibers – connect adjacent gyri in same hemisphe ...
Know Your Brain
... midbrain, which controls some reflex actions and is part of the circuit responsible for voluntary movements. The forebrain is the largest and most highly developed The brain is like a ...
... midbrain, which controls some reflex actions and is part of the circuit responsible for voluntary movements. The forebrain is the largest and most highly developed The brain is like a ...
Neurons: A fish-eye view of the brain
... signal, and moves from one cell to another. The signaling cell releases a chemical (called a neurotransmitter) that travels to the receiving cell. The result may be that the receiving cell is excited, and fires a signal, or that it’s inhibited from doing so. Through the release of its neurotransmitt ...
... signal, and moves from one cell to another. The signaling cell releases a chemical (called a neurotransmitter) that travels to the receiving cell. The result may be that the receiving cell is excited, and fires a signal, or that it’s inhibited from doing so. Through the release of its neurotransmitt ...
The Cerebral Cortex and Our Divided Brain
... lobe performs many functions and interacts with other areas of the cortex. 6-2. Summarize some of the findings on the functions of the motor cortex and the sensory cortex, and discuss the importance of the association areas. The motor cortex, an arch-shaped region at the rear of the frontal lobes, c ...
... lobe performs many functions and interacts with other areas of the cortex. 6-2. Summarize some of the findings on the functions of the motor cortex and the sensory cortex, and discuss the importance of the association areas. The motor cortex, an arch-shaped region at the rear of the frontal lobes, c ...
IV. Conduction Across Synapses
... neurotransmitter transported back into pre-synaptic neuron for re-use ex: norepinephrine dopamine serotonin D. Neurotransmitters chemical messengers at synapses most are excitatory – depolarize post-synaptic membrane some are inhibitory – hyperpolarize post-synaptic membrane effect of neurotransmitt ...
... neurotransmitter transported back into pre-synaptic neuron for re-use ex: norepinephrine dopamine serotonin D. Neurotransmitters chemical messengers at synapses most are excitatory – depolarize post-synaptic membrane some are inhibitory – hyperpolarize post-synaptic membrane effect of neurotransmitt ...
Nervous Sytem notes HS Spring
... The nervous system is divided into a central nervous system (CNS), consisting of the brain and spinal cord, and a peripheral nervous system (PNS), consisting of nerves carrying sensory and motor information between the CNS and muscles and glands. Both systems have two types of cells: neurons that tr ...
... The nervous system is divided into a central nervous system (CNS), consisting of the brain and spinal cord, and a peripheral nervous system (PNS), consisting of nerves carrying sensory and motor information between the CNS and muscles and glands. Both systems have two types of cells: neurons that tr ...
The Brain
... neurotransmitter secreted by the postganglionic fibers of the sympathetic division. ...
... neurotransmitter secreted by the postganglionic fibers of the sympathetic division. ...
Local Copy - Synthetic Neurobiology Group
... of hundreds of billions of neurons, which fall into perhaps hundreds of different classes, defined by their shape and the molecules they contain. Each computes in concert with thousands of others, its activity dynamically changing on the millisecond timescale. In many diseases, specific computations ...
... of hundreds of billions of neurons, which fall into perhaps hundreds of different classes, defined by their shape and the molecules they contain. Each computes in concert with thousands of others, its activity dynamically changing on the millisecond timescale. In many diseases, specific computations ...
Brain_stemCh45
... A. Waxing-and-waning pattern with apnea: diffuse forebrain depression due to metabolic encephalopathy e.g. liver failure B. Hyperventilation: injury to mid brain C. Apneusis: injury to rostral pons – breathing halts briefly at full inspiration D. Ataxic breathing: injury to the lower pons or upper m ...
... A. Waxing-and-waning pattern with apnea: diffuse forebrain depression due to metabolic encephalopathy e.g. liver failure B. Hyperventilation: injury to mid brain C. Apneusis: injury to rostral pons – breathing halts briefly at full inspiration D. Ataxic breathing: injury to the lower pons or upper m ...
Introduction: The Human Brain
... the cell bodies of the neurons, while the white matter is the branching network of thread-like tendrils called dendrites and axons - that spread out from the cell bodies to connect to other neurons. But the brain also has another, even more numerous type of cell, called glial cells. These outnumber ...
... the cell bodies of the neurons, while the white matter is the branching network of thread-like tendrils called dendrites and axons - that spread out from the cell bodies to connect to other neurons. But the brain also has another, even more numerous type of cell, called glial cells. These outnumber ...
Central Nervous System PowerPoint
... Pons and inside that the (Reticular Formation) is a nerve network in the brainstem that plays an important role in controlling arousal. •It is involved in motor control and sensory analysis... for example, information from the ear first enters the brain in the pons. It has parts that are important f ...
... Pons and inside that the (Reticular Formation) is a nerve network in the brainstem that plays an important role in controlling arousal. •It is involved in motor control and sensory analysis... for example, information from the ear first enters the brain in the pons. It has parts that are important f ...
Biological Basis of Behavior
... target areas without passing through the blood. The distance travelled ...
... target areas without passing through the blood. The distance travelled ...
Central Nervous System PowerPoint
... Pons and inside that the (Reticular Formation) is a nerve network in the brainstem that plays an important role in controlling arousal. •It is involved in motor control and sensory analysis... for example, information from the ear first enters the brain in the pons. It has parts that are important f ...
... Pons and inside that the (Reticular Formation) is a nerve network in the brainstem that plays an important role in controlling arousal. •It is involved in motor control and sensory analysis... for example, information from the ear first enters the brain in the pons. It has parts that are important f ...
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.