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The Peripheral Nervous System
The Peripheral Nervous System

... • Parasympathetic – “rest and digest” – Concerned with conserving and storage of energy ...
Chapter 12: The Central Nervous System
Chapter 12: The Central Nervous System

... Precentral gyrus - motor in function Postcentral gyrus - sensory in function Lateral cerebral sulcus - divides frontal from temporal lobe Fissures - deep grooves Longitudinal fissure - divides the right from left hemispheres Cortex (bark of tree) = outer gray - 2-4mm thick - 6 layers of cell bodies; ...
Unit B6 Key Words
Unit B6 Key Words

... A reaction of the muscles in the pupil to light. The pupil contracts in bright light and relaxes in dim light A chemical messenger secreted by gland that brings about a slow change in the body A change in the environment that causes a response Cells that detect changes in the environment The long ti ...
Special Senses
Special Senses

... _____ (stretch), ______ ________ and _________. Causes feelings of poorly localized pain and nausea. ...
Neurons in the corpus callosum of the cat during postnatal
Neurons in the corpus callosum of the cat during postnatal

... Neurons in the corpus callosum of the cat all ages, the morphological characteristics of MAP2-positive cells were very variable; some cells exhibited short and poorly rami®ed processes, while others had well developed ones (Fig. 2C±E). Different morphological types were observed, pyramidal-like neu ...
PSYC 100 Chapter 2
PSYC 100 Chapter 2

... speech, motor functioning, and higher order thought such as planning, judgment, decision making Parietal Lobes: receives sensory input Temporal Lobes: auditory processing, speech Occipital Lobes: receives input from visual fields ...
Nervous System Note Packet
Nervous System Note Packet

... Name: _________________________________________________ Period: ______________________________ Directions: From time to time, you will have a bell ringer question to answer at the very beginning of class. Answer the bell ringers below. DON’T LOSE THIS SHEET! You will be turning it in to Mr. B for cr ...
learning motor skills by imitation: a biologically inspired robotic model
learning motor skills by imitation: a biologically inspired robotic model

... commands produced by the cerebellum. As such, they give an abstract representation of mirror neurons. Learning of new combinations of movements is done in PM and in the cerebellum. Premotor cortexes and cerebellum are modeled by the DRAMA neural architecture which allows learning of times series and ...
chapter3 (new window)
chapter3 (new window)

... • People see an illusion of gray images in intersections of white areas. • Signals from bipolar cells cause effect – Receptors responding to white corridors send inhibiting signals to receptor at the ...
ben_slides2
ben_slides2

... Finding homologies in species of the same order can be challenging Probably fast evolution Mechanism (duplication & variation vs. modification) unknown NOTE: loss of a single OR doesn't necessarily eliminate associated behavior ...
Neurons and Glial Cells
Neurons and Glial Cells

... The nervous system is made up of neurons and glia. Neurons are specialized cells that are capable of sending electrical as well as chemical signals. Most neurons contain dendrites, which receive these signals, and axons that send signals to other neurons or tissues. multipolar, and pseudounipolar ne ...
house symposium 2015 - Instituto do Cérebro
house symposium 2015 - Instituto do Cérebro

... expiration and inspiration (polypnea)”. During sniffing, all of these can synchronize at rates of 5--11 Hz, resulting in a global motor rhythm. Neuronal activity across the brain is synchronous to this behavior: it emerges from the concerted activity of brainstem nuclei and, in turn, gates sensory i ...
Oculomotor System
Oculomotor System

... because the neural networks for different types of eye movements involve structures throughout the CNS, which, when lesioned, produce very predictable and specific clinical deficits. For example, if one observes oculomotor deficits in saccades or smooth pursuit, the clinician knows what sub-set of s ...
No Direct Projection is Observed from the Substantia Nigra to the
No Direct Projection is Observed from the Substantia Nigra to the

... Our previous data suggest that gastric motor function is impaired in both digestive and interdigestive phases in 6-OHDA rats [12], consistent with reports from clinical studies [19]. Cholinergic neurons in the DMV promote gastric emptying via the vagus nerve. However, catecholaminergic neurons (rele ...
The Nervous System
The Nervous System

... axon - the long extension of a neuron that carries nerve impulses away from the body of the cell to other neurons. axon terminals - the hair-like ends of the axon cell body - the cell body of the neuron; it contains the nucleus (also called the soma) dendrites - the branching structure of a neuron t ...
Two Views of Cortex
Two Views of Cortex

... spatial frequency ...
Final answers - Center for Neural Science
Final answers - Center for Neural Science

... interpretation of size and depth. c) Odysseus and the ship are perceived to be at the same distance. d) the images of Odysseus and the ship project to different areas of the retina. 31) Motion aftereffects, such as the waterfall illusion, are most likely caused by a) the autokinetic effect. b) akine ...
A horizontal spinal cord slice preparation for studying descending
A horizontal spinal cord slice preparation for studying descending

... Since the introduction and widespread use of in vitro spinal cord slice preparations, studies of evoked synaptic transmission in spinal neurons have concentrated on inputs from two sources; those from primary afferents and local circuit neurons. This focus is due largely to practical considerations. ...
REM-off
REM-off

... number of different factors including gene expression and the release rate of neuromodulatory neurotransmitters (e.g., NE, HA, ACh, DA, 5-HT). That is, the neuromodulator may change the ‘functional anatomy’ of the brain. For example, when neuron A (presynaptic), having fired an action potential, rel ...
Nervous System - IB BiologyMr. Van Roekel Salem High School
Nervous System - IB BiologyMr. Van Roekel Salem High School

... • Hypothalamus: maintains homeostasis, coordinates nervous and endocrine systems, secretes hormones of posterior pituitary, and releases regulating factors in anterior pituitary • Cerebellum: “little brain” coordinates unconscious functions such as movement and balance • Medulla: controls automatic ...
Occipital Nerve Stimulation Suppresses Nociception
Occipital Nerve Stimulation Suppresses Nociception

... • ONS is an emerging therapy for chronic daily headache (e.g. chronic migraine) • Migraine pain may result from sensitization of the trigeminal nucleus caudalis • This study quantifies the effects of ONS on these neurons in a rat model of central trigeminal sensitization ...
Answer Key Chapter 28 - Scarsdale Public Schools
Answer Key Chapter 28 - Scarsdale Public Schools

... fire an action potential in the receiving cell. The neuron will be able to fire an action potential as long as the incoming signals are collectively strong enough to bring the neuron’s membrane potential to threshold. 14. Epilepsy is sometimes referred to as an electrical storm of activity in t ...
Ch08
Ch08

... Effect of Lesioning and Microstimulation • Microstimulation experiment by Movshon and Newsome – Monkey trained to indicate direction of fields of moving dots. – Neurons in MT cortex that respond to specific direction were activated. – Experimenter used microstimulation to activate different directi ...
Glia Ç more than just brain glue
Glia Ç more than just brain glue

... Astrocytes control blood flow through their numerous fine processes, which form close associations with both blood vessels and neurons. In response to enhanced neuronal activity, astrocytes signal to blood vessels about the need for regional increases in blood flow, which results in enhanced deliver ...
A part of the cholinergic fibers in mouse superior cervical ganglia
A part of the cholinergic fibers in mouse superior cervical ganglia

... GAD65-immunopositive baskets per one section (12 grmu m thick) were 48.6+/-9.8 (n=5). All GAD65-immunopositive boutons exhibited VAchT immunoreactivity (Fig. 1). GAD65-immunopositive boutons and nNOS-immunopositive fibers often encircled the same postganglionic neurons and were very close to each ot ...
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Premovement neuronal activity

Premovement neuronal activity in neurophysiological literature refers to neuronal modulations that alter the rate at which neurons fire before a subject produces movement. Through experimentation with multiple animals, predominantly monkeys, it has been shown that several regions of the brain are particularly active and involved in initiation and preparation of movement. Two specific membrane potentials, the bereitschaftspotential, or the BP, and contingent negative variation, or the CNV, play a pivotal role in premovement neuronal activity. Both have been shown to be directly involved in planning and initiating movement. Multiple factors are involved with premovement neuronal activity including motor preparation, inhibition of motor response, programming of the target of movement, closed-looped and open-looped tasks, instructed delay periods, short-lead and long-lead changes, and mirror motor neurons.
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