the brain weighs 1300 - 1400 g made up of about 100 billion neurons “the most complex living...
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The BrainThe Brain weighs 1300 - 1400 g
made up of about 100 billion neurons
“the most complex living structure on the universe” Society for Neuroscience
makes us who we are
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The BrainThe Brain
Phineas gage
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Brain structureBrain structure
Cerebrum
Cerebellum
Hypothalamus
Pituitary gland
Medulla
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The Cerebrum:
The cerebrum is the largest part ofthe human brain, associated with higher brain function such as thought& action. The cerebral cortex is divided intofour sections, called "lobes": thefrontal lobe, parietal lobe, occipitallobe, and temporal lobe.
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Parts of the cerebrumParts of the cerebrum
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What do each of these lobes do?
Frontal Lobe- associated with reasoning, planning, parts of speech, movement, emotions, and problem solving
Parietal Lobe- associated with movement, orientation, recognition, perception of stimuli
Occipital Lobe- associated with visual processing
Temporal Lobe- associated with perception and recognition of auditory stimuli, memory, and speech
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Parts of the Cerebrum
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Parts of the cerebrumParts of the cerebrum
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The Cerebellum:
The cerebellum, or "little brain", issimilar to the cerebrum in that it hastwo hemispheres and has a highlyfolded surface or cortex. Thisstructure is associated with regulationand coordination of movement,posture, and balance.
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Brain Stem:
This structure is responsible for basic vital life functions such as breathing,heartbeat, and blood pressure.
The brain stem is made of the midbrain, pons, and medulla.
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Midbrain:
It is involved in functions such as vision, hearing, eye movement, and body movement. Also important for voluntary motor function
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Pons:
part of the hindbrain 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 for the level of consciousness and for sleep.
Some structures within the pons are linked to the cerebellum, thus are involved in movement and posture.
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Medulla Oblongata:
this structure is between the pons and spinal cord.
It is responsible for maintaining vital body functions, such as breathing & heart rate
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Hypothalamus:
Autonomic Function Control (heart rate, digestion, sex drives)
Endocrine Function Control Homeostasis Motor Function Control Food & Water Intake Regulation Sleep-Wake Cycle Regulation
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Thalamus: processes and relays movement
and sensory information It is essentially a relay station,
taking in sensory information and then passing it on to the cerebral cortex
The cerebral cortex also sends information to the thalamus, which then sends this information to other systems.