Brain tour lesson two
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Brain Tour – Lesson two. Limbic system. A group of brain areas involved in emotional reaction and motivated behaviors. Includes the amygdala, hippocampus, and hypothalamus. Hippocampus (seahorse). MEMORY Forms long term memories for facts and events.

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Brain Tour – Lesson two

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Brain Tour – Lesson two


Limbic system

  • A group of brain areas involved in emotional reaction and motivated behaviors.

    • Includes the amygdala, hippocampus, and hypothalamus.


Hippocampus (seahorse)

  • MEMORY

  • Forms long term memories for facts and events.

  • Helps us make connections between the past and the present.

  • Involved in spatial navigation and spatial memories.


Amygdala (almond)

  • EMOTION

    • FEAR AND AGGRESSION

  • Involved in the arousal and regulation of emotion and our initial emotional response to sensory information.

  • Memory of emotional events


Hypothalamus

  • Involved in drives associated with survival (hunger, thirst, emotion, sex, and reproduction)

  • Brain’s blood-analysis laboratory (monitors to determine your body’s condition)

  • Regulates body temp by sweating or shivering


The Cerebrum and the Four Lobes of the brain


The Cerebrum

  • Largest structure of the brain

  • Uppermost part of the brain

  • In charge of most sensory, motor, and cognitive processes


Two Halves of the Cerebrum

  • Divided into two halves called cerebral hemispheres which control actions on the opposite side of the body

  • Corpus Callosum- the large band of fibers that connects the two halves of the cerebrum.

  • Allows the two sides to communicate


Cerebral Cortex

  • A collection of several thin layers of cells covering the cerebrum

  • Responsible for higher thought processes

  • Wrinkling allows more cells to exist in a small space

Adult Brain

22 week old fetus brain


The Four Lobes – Occipital Lobes

  • Locatedat the bottom-back of the cerebrum

  • Contains the Visual Cortex


Parietal Lobes

  • Located at the top back of the cerebrum

  • Spatial abilities, receives sensory information from joints, organs, taste buds.

  • Contains the Somatosensory Cortex

    • Processes information form skin

      • Pressure, pain, touch, temperature


Somatosensory Cortex


Temporal Lobes

  • Located at the sides of head, just above the ears

  • Processes memory, perception, emotion

  • Contains:

    • Auditory Cortex -processes sound

    • Wernicke’s Area – language comprehension


Frontal Lobes

  • Located in the front

  • Involved in judging, planning, short-term memory, thinking creatively, and personality


Frontal Lobes (continued)

  • Containsthe Motor Cortex – band of nerves that issues orders to muscles to produce voluntary movement

  • Also Contains:

    • Broca’s Area – involved in speech production

    • Allows us to speak fluently and smoothly


Motor Cortex


FTOP


  • https://www.youtube.com/watch?v=c6kRP41ygrI

  • https://www.youtube.com/watch?v=QPLZ_WUsK88

  • https://www.youtube.com/watch?v=XP9IEoCw5W4


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