what are the four main divisions of the brain?
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Rotate this 3D model to see the four major regions of the brain: the cerebrum, diencephalon, cerebellum, and brainstem. The brain directs our body's internal functions. It also integrates sensory impulses and information to form perceptions, thoughts, and memories.
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The brain is composed of 3 main structural divisions: the cerebrum, the brainstem, and the cerebellum (see the images below). At the base of the brain is the brainstem, which extends from the upper cervical spinal cord to the diencephalon of the cerebrum. The brainstem is divided into the medulla, pons, and midbrain.
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The anatomical divisions are the central and peripheral nervous systems. The CNS is the brain and spinal cord. The PNS is everything else and includes afferent and efferent branches with further subdivisions for somatic, visceral and autonomic function.
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Traditionally, each of the hemispheres has been divided into four lobes: frontal, parietal, temporal and occipital.
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['Frontal Lobe. Controls: Manners, movement, problem solving, muscle coordination, reasoning, long term memory, language understanding, speech production, happiness.', 'Parietal Lobe. Controls: Short-term memory, taste, smell.', 'Occipital Lobe. ... ', 'Temporal Lobe. ... ', 'Cerebellum. ... ', 'Brain Stem. ... ', 'Limbic System. ... ', 'Hypothalamus.']
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The cerebrum consists of two cerebral hemispheres the outer layer called cortex (gray matter) and the inner layer (white matter). There are four lobes in the cortex, the frontal lobe, parietal lobe, temporal lobe, occipital lobe.
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['1.1 White and gray matter.', '1.2 Spinal cord. 1.2.1 Cranial nerves.', '1.3 Brain. 1.3.1 Brainstem. 1.3.2 Cerebellum. 1.3.3 Diencephalon. 1.3.4 Cerebrum.', '1.4 Difference from the peripheral nervous system.']
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There are four lobes in the cortex, the frontal lobe, parietal lobe, temporal lobe, occipital lobe.
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The two major anatomical divisions of the nervous system. Central nervous system. Consists of the brain an spinal cord. Peripheral nervous system.
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['cerebrum. associated with movement and sensory input.', 'cerebellum. responsible for muscle coordination; balance, posture, and muscle tone. ... ', 'medulla oblongata. controls many vital functions such as respiration and heart rate.', 'midbrain. eye movement and auditory reflexes.', 'hypothalamus. ... ', 'thalamus. ... ', 'brain stem.']
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The Subdivisions of the Central Nervous System. The central nervous system (defined as the brain and spinal cord) is usually considered to have seven basic parts: the spinal cord, the medulla, the pons, the cerebellum, the midbrain, the diencephalon, and the cerebral hemispheres (Figure 1.10; see also Figure 1.8).
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Chapter Review. The nervous system can be separated into divisions on the basis of anatomy and physiology. The anatomical divisions are the central and peripheral nervous systems. The CNS is the brain and spinal cord.
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['The Biggest Part: the Cerebrum. The biggest part of the brain is the cerebrum. ... ', "The Cerebellum's Balancing Act. Next up is the cerebellum. ... ", 'Brain Stem Keeps You Breathing — and More. ... ', 'Pituitary Gland Controls Growth. ... ', 'Hypothalamus Controls Temperature. ... ', 'You Have Some Nerve! ... ', 'Emotion Location. ... ', 'Be Good to Your Brain.']
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Structural Divisions of the Nervous System. The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2).
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['Forebrain. The anterior portion of the brain. Telencephalon. Diencephalon.', 'Midbrain. The middle portion of the brain. Mesencephalon.', 'Hindbrain. The posterior portion of the brain including the cerebellum and brainstem. Metencephalon. Myelencephalon.']
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Rotate this 3D model to see the four major regions of the brain: the cerebrum, diencephalon, cerebellum, and brainstem.
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The nervous system can be divided into two major subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS), shown in [link]. The CNS is comprised of the brain and spinal cord; the PNS connects the CNS to the rest of the body.