Brain project

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Brain project

  1. 1. Brain Project By: Stephanie Hour 5
  2. 2. Hemispheres of the Brain  Right Hemisphere  Spatial abilities  Face recognition  Visual imagery  Music  Left Hemisphere  Language  Math  Logic Left Right Hemisphere Hemisphere
  3. 3. The Brain and the Spinal Cord  Spinal Cord  Part of the central nervous system.  Bundle of nerves that passes through the bones of the vertebrae down the back.  Sends sensations to the brain from the body, and returns motor commands to the various parts of the body.  primary role in reflexes and in the autonomic nervous system
  4. 4. Sensory Motor Cortex Frontal Cortex Parietal Lobe Lobe Wernicke’s AreaBroca’sArea Occipital Lobe Temporal Lobe Cerebellum Brainstem
  5. 5. Lobes of the Brain Parietal Lobe Frontal Lobe Occipital Lobe Temporal Lobe
  6. 6. Lobes of the Brain Description Frontal Lobe  Portion of cerebral cortex lying just behind the forehead  Involved in speaking and muscle movements and in making plans and judgments Parietal Lobe  Portion of cerebral cortex lying at the top of the head and towards the rear  Receives sensory input for touch and body positions  Its association areas work with the sensory signals or accurate perception Temporal Lobe  Portion of cerebral cortex lying roughly above the ears; includes auditory areas, each receiving info primarily from opposite ear; controls hearing Occipital Lobe  Portion of cerebral cortex lying at the back of the head; Includes areas that receive info from visual fields  Controls vision; contains visual cortex
  7. 7.  Motor cortex  an area at the rear of the frontal lobes that controls voluntary movements Sensory Cortex  area at the front of the parietal lobes that registers and processes body touch and movement sensations Visual cortex  Area in the occipital lobe that receives input from eyes Broca’s Area  one of the main areas of the cerebral cortex responsible for speech production Wernicke’s Area  responsible for the comprehension of speech
  8. 8. Cerebral Cortex Cerebellum Corpus Callosum Thalamus Hypothalamus Pituitary Gland Brain Stem
  9. 9.  Thalamus:  Directs messages to sensory receiving areas in cortex and transmits replies to cerebellum and medulla  Structure through which all sensory info (except smell) must pass through to get to cerebral cortex Brainstem  responsible for automatic survival functions Cerebellum  Helps coordinate movement; tells brain what to expect from body’s own movement  Functions include processing sensory input and coordinating movement output and balance  Enables 1 type of nonverbal learning and memory; helps us judge time, modulate our emotions, and discriminate sounds and textures Hypothalamus  Directs several maintenance activities (i.e. sexual behavior, eating, drinking, body temperature), helps govern endocrine system via pituitary gland, and is linked to emotion and reward
  10. 10.  Pituitary Gland  "Master Gland" because it secretes hormones and directs other organs and endocrine glands, such as the adrenal glands, to suppress or induce hormone production. Cerebral Cortex  intricate fabric of interconnected neural cells covering the cerebral hemispheres  Body’s ultimate control and information processing center  Deeply convoluted over surface (“bark” of cerebrum most strongly linked to intelligence) Corpus Callosum  Divides the cerebrum into left and right hemispheres  Connects the left and right sides of the brain allowing for communication between both hemispheres  Transfers motor, sensory, and cognitive information between the brain hemispheres
  11. 11. Thalamus Reticular B Formation R ACerebellum Pons I N S T E Medulla M
  12. 12. Parts of the Brainstem Reticular Formation  plays a role in regulation of sleep, arousal, and dreaming Pons  part of brainstem that acts as the “bridge” between brain stem and cerebellum  involved with sleep, arousal, and coordination of movements Medulla  base of brainstem, attached to spinal cord  controls unconscious but vital functions (i.e. breathing and heartbeat)
  13. 13.  Amygdala  2 lima bean sized neural clusters in limbic system linked to emotion (i.e. fear, aggression) that works with frontal lobe to regulate emotional responses  Hippocampus  Processes memoriesAmygdala Hippocampus

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