Sunday, May 29, 2005

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brain structures Structure 1

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Strutture encefaliche

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cerebral cortex

Functions:

  • Thought Movement volunteer
  • Language Perception Reasoning

\u0026lt;/ td> \u0026lt;td width="100%"> The word " cortex "and 'was used to look like that of trees, since' is a layer of cells lining the outer surface of the brain . The thickness of the cerebral cortex varies from 2 to 6 mm. The right and left cerebral cortex are interconnected by a thick layer of nerve fibers, called "corpus callosum" . In higher mammals, like humans, the cerebral cortex has many protrusions and recesses. A projection of the cerebral cortex called around and called a recess groove . The lower mammals such as mice and rabbits, very few turns and ruts. \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr> Cerebellum

Functions:

  • Movement Balance Posture

\u0026lt;/ td> \u0026lt;td width="100%"> The word "cerebellum" means "little brain . The cerebellum and 'located just above the brainstem. In a sense, a bit like 'the brain : e' and divided into hemispheres and 'played by the cortex (cerebellar). \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr> of Trunk 'brain

Functions:

  • Breath
  • heartbeat
  • Blood Pressure

\u0026lt;/ td> \u0026lt;td width="100%"> The term "brain stem "means that part of the brain which lies between the thalamus and spinal cord. Among the structures that are part of the brain stem are the bulb, the bridge, the midbrain, the roof and the reticular formation. Some of these regions are responsible for the most 'basic life functions such as breathing, maintaining the heart rate and blood pressure. \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr>

Hypothalamus Functions :

  • Body temperature
  • Emotions
  • Fame
  • Sete
  • circadian rhythms

\u0026lt;/ td> \u0026lt;td width="100%"> The hypothalamus and 'located at the base of the brain and is' composed of different regions. It has roughly the size of a pea (it weighs about 1 / 300 of the whole brain ), but it 's responsible for important aspects of behavior. An important function of the hypothalamus and 'to control its body temperature. The hypothalamus works like a "thermostat" by detecting changes in body temperature and producing signals for maintaining constant or change it. For example: if you're too hot, the hypothalamus detects and emits signals that can dilate blood vessels to the skin, making it 'more to cool the blood' in a hurry. The hypothalamus also controls the pituitary gland. \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr> Talamo

Functions:

  • Integration
  • sensory motor integration

\u0026lt;/ td> \u0026lt;td width="100%"> The thalamus receives sensory information and relays to the cortex brain. The cerebral cortex sends information to the thalamus, which in turn forward it to other areas of the brain : mostly the same cerebral cortex. \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr> limbic system

Functions:

  • emotional behavior

\u0026lt;/ td> \u0026lt;td width="100%"> The limbic system and 'a group of structures that includes the' amygdala, the hippocampus, the bodies mammillary and around the track (or tracks). These regions are important for the control of emotional responses to external situations. The hippocampus and 'important for memory. \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr> Hippocampus

Functions:

  • Learning Memory

\u0026lt;/ td> \u0026lt;td width="100%"> The hippocampus is a part of the limbic system important for memory and learning. \u0026lt;/ Td> \u0026lt;/ tr> \u0026lt;tr> ; \u0026lt;td> basal ganglia

Functions:

  • Movement

\u0026lt;/ td> \u0026lt;td width="100%"> The basal ganglia are a group structures, including the globus pallidus, the caudate nucleus, the subthalamic nucleus, the putamen and nigra are important for the coordination of movements. \u0026lt;/ td> \u0026lt;/ tr> \u0026lt;tr> midbrain

Functions:

  • Vision
  • Hearing Eye movements of the body
  • Movement

\u0026lt;/ td> \u0026lt;td width="100%"> The midbrain includes structures such as the superior and inferior colliculi and red nucleus. It represents an important intermediate step along some sensory and motor systems. \u0026lt;/ td> \u0026lt;/ tr>

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