• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Working Together for a World Free of Chemical Weapons
Working Together for a World Free of Chemical Weapons

... The Central Nervous System (CNS) is composed of the brain and spinal cord; it coordinates thoughts, memory and other complex processes, such as the body’s reaction to stimuli. A synapse is the gap between two nerve cells (neurons) through which chemical signalling molecules (neurotransmitters) pass ...
Your Body Is Nothing Without A Brain
Your Body Is Nothing Without A Brain

... Most recently, research by neuroradiologists, biotech firms, medical researchers, and other specialists has focused on the axon, a long, slender projection of a neuron, that carries electrical impulses away from the nerve cell’s body. The research finds that the stretching of the axon can make the c ...
Nervous and Muscular System
Nervous and Muscular System

... Major Divisions of the Nervous System • Cerebrum – Divided into the L and R hemispheres – Connected by corpus callosum – Functions in: determining intelligence and personality; thinking; perceiving; language; motor function; planning and organizing; touch ...
Unit 1 2016/17 VCE Study Design – student trail
Unit 1 2016/17 VCE Study Design – student trail

... inside us and in our environment. It makes sure that all of our body systems work together. The nervous system allows us to think and make decisions, carry out different actions and store memories. ...
Ch 10MT and Ch 8-9 BS Nervous System
Ch 10MT and Ch 8-9 BS Nervous System

... attached to allow flow of fluid between layers  Pia Mater – third layer, located closest to brain and spinal cord, rich in supply of blood vessels  Subarachnoid space: below arachnoid membrane, above pia mater – contains cerebrospinal fluid  Epidural space: above the dura mater – within surroundi ...
Unit Two
Unit Two

... adrenaline causes the heartbeat and breathing to increase. This helps a person to generate extra energy! The Sex Glands: 1.) Testes: Produce the male hormone “testosterone.” (low levels are also found in women) 2.) Ovaries: Produce the female hormones “estrogen” and “progesterone.” (low levels are a ...
YG013807812
YG013807812

... logged have been used to power muscle grafts and reinstate incomplete crusade in a new assistant. When electromagnetic breakers shaped by the neuron, non-invasive insert scrounger privileged indication resolve since the skull diminishes gestures, disbanding and obscuring. Electroencephalography is t ...
Nervous System - Seattle Central
Nervous System - Seattle Central

... Support and Protection •Meninges encase brain & SC •Three layers: •Dura mater •Arachnoid •Pia mater •Between layers: •Cerebrospinal fluid (CSF; airbag for brain) ...
Nervous System
Nervous System

... A brief reversal of membrane potential with a total amplitude of 100 mV Action potentials are only generated by muscle cells and neurons They do not decrease in strength over distance They are the principal means of neural communication An action potential in the axon of a neuron is a nerve ...
THE BRAIN DAMAGE IN FETAL ALCOHOL SYNDROME
THE BRAIN DAMAGE IN FETAL ALCOHOL SYNDROME

PSYC 100 Chapter 2
PSYC 100 Chapter 2

... travels down the axon, which is triggered by chemical signals from neighboring neurons.   The purpose of the action potential is to continue that signal down the axon to the axon terminal   The axon terminal is located at the synapse, or the junction between the axon tip of the sending neuron and ...
File
File

...  The frontal lobes are locate at the anterior part of the brain behind the eyes.  They control voluntary movement, memory, intelligence, concentration, emotions, speech, behaviour, and intellectual functions such as problem solving, decision making and planning.  There are 2 specific areas in the ...
Central nervous system
Central nervous system

... – Somatic afferent fibers: skin, skeletal muscles, ...
Chapter 3
Chapter 3

...  Periaqueductal gray – surrounds cerebral aqueduct; control species-typical behaviors  Reticular formation – located in central region of brain stem;, from medulla to diencephalon  Red nucleus – receives input from cerebellum and motor cortex and sends axons to motor neurons in SC  Substantia ni ...
Connectionism
Connectionism

... • An artificial neural network that can be trained to pronounce English words. • Consists of about 300 units (neurons) arranged in three layers: an input layer, which reads the words, an output layer, which generates speech sounds, or phonemes, and a middle, ''hidden layer,'' which mediates between ...
Step Up To: Psychology - Grand Haven Area Public Schools
Step Up To: Psychology - Grand Haven Area Public Schools

... 19. The sequence of brain regions from oldest to newest is: A) limbic system; brainstem; cerebral cortex. B) brainstem; cerebral cortex; limbic system. C) limbic system; cerebral cortex; brainstem. D) brainstem; limbic system; cerebral cortex. E) cerebral cortex; brainstem; limbic system. ...
the nervous system
the nervous system

The 7 Habits of Highly Effective Brains
The 7 Habits of Highly Effective Brains

...  Getting only 5 hours or less sleep is the equivalent of being drunk  Studies in Canada revealed that when clocks were put back at the start of daylight savings, there was a dramatic fall in the number of road accidents Source: Audra Starkey author of The Healthy Shift Worker ...
Word doc version
Word doc version

Vanderbilt neuroscientists identify “oops center” in the brain
Vanderbilt neuroscientists identify “oops center” in the brain

... when human subjects made errors. They called this the “blunder blip” and attributed it to the brain’s error-recognition response. Then Jonathan Cohen at Princeton University conducted a series of fMRI experiments that mapped brain activity when human subjects were put in situations where they are li ...
Wallin_Back_to_School_with_the_Thinking_Maps
Wallin_Back_to_School_with_the_Thinking_Maps

... Back to School Night with the Thinking Maps Give you, our wonderful parents, an opportunity to learn the Maps (and ...
Central Nervous System
Central Nervous System

... Cerebrospinal Fluid flows through all ventricles, from lateral towards 4th ventricle It then flows into the central canal of the spinal cord and up the brain in the subarachnoid spaces It is re-directed to the blood stream via arachnoid villi into the superior sagittal sinus (a venous blood vessel). ...
Work Station Site - Museums Victoria
Work Station Site - Museums Victoria

... Students will use the Mind and Body galleries at Melbourne Museum to complete the trail. The trail includes 10 activities (A-J) based around themes covered in the study design. They do not represent a comprehensive coverage of all of the material relevant to Unit 1 in the galleries, but a selection ...
The Nervous System - Hastings High School
The Nervous System - Hastings High School

Primer
Primer

... arranged in columns 30–50 microns wide which run perpendicularly between the white matter and the pial surface (Figure 1d). The physiological investigations of Mountcastle, Hubel and Wiesel, beginning in the late 1950s, showed that neurons in the same column have similar physiological properties, an ...
< 1 ... 161 162 163 164 165 166 167 168 169 ... 241 >

Human brain



The human brain is the main organ of the human nervous system. It is located in the head, protected by the skull. It has the same general structure as the brains of other mammals, but with a more developed cerebral cortex. Large animals such as whales and elephants have larger brains in absolute terms, but when measured using a measure of relative brain size, which compensates for body size, the quotient for the human brain is almost twice as large as that of a bottlenose dolphin, and three times as large as that of a chimpanzee. Much of the size of the human brain comes from the cerebral cortex, especially the frontal lobes, which are associated with executive functions such as self-control, planning, reasoning, and abstract thought. The area of the cerebral cortex devoted to vision, the visual cortex, is also greatly enlarged in humans compared to other animals.The human cerebral cortex is a thick layer of neural tissue that covers most of the brain. This layer is folded in a way that increases the amount of surface that can fit into the volume available. The pattern of folds is similar across individuals, although there are many small variations. The cortex is divided into four lobes – the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. (Some classification systems also include a limbic lobe and treat the insular cortex as a lobe.) Within each lobe are numerous cortical areas, each associated with a particular function, including vision, motor control, and language. The left and right sides of the cortex are broadly similar in shape, and most cortical areas are replicated on both sides. Some areas, though, show strong lateralization, particularly areas that are involved in language. In most people, the left hemisphere is dominant for language, with the right hemisphere playing only a minor role. There are other functions, such as visual-spatial ability, for which the right hemisphere is usually dominant.Despite being protected by the thick bones of the skull, suspended in cerebrospinal fluid, and isolated from the bloodstream by the blood–brain barrier, the human brain is susceptible to damage and disease. The most common forms of physical damage are closed head injuries such as a blow to the head, a stroke, or poisoning by a variety of chemicals which can act as neurotoxins, such as ethanol alcohol. Infection of the brain, though serious, is rare because of the biological barriers which protect it. The human brain is also susceptible to degenerative disorders, such as Parkinson's disease, and Alzheimer's disease, (mostly as the result of aging) and multiple sclerosis. A number of psychiatric conditions, such as schizophrenia and clinical depression, are thought to be associated with brain dysfunctions, although the nature of these is not well understood. The brain can also be the site of brain tumors and these can be benign or malignant.There are some techniques for studying the brain that are used in other animals that are just not suitable for use in humans and vice versa. It is easier to obtain individual brain cells taken from other animals, for study. It is also possible to use invasive techniques in other animals such as inserting electrodes into the brain or disabling certains parts of the brain in order to examine the effects on behaviour – techniques that are not possible to be used in humans. However, only humans can respond to complex verbal instructions or be of use in the study of important brain functions such as language and other complex cognitive tasks, but studies from humans and from other animals, can be of mutual help. Medical imaging technologies such as functional neuroimaging and EEG recordings are important techniques in studying the brain. The complete functional understanding of the human brain is an ongoing challenge for neuroscience.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report