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Agenda – Tuesday, February 4 th

Agenda – Tuesday, February 4 th. Biology reading quiz (#4) Notes over parts of the brain The cerebrum The cerebral cortex Homework: NONE. Practice FRQ.

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Agenda – Tuesday, February 4 th

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  1. Agenda – Tuesday, February 4th • Biology reading quiz (#4) • Notes over parts of the brain • The cerebrum • The cerebral cortex • Homework: NONE

  2. Practice FRQ • 4. Assume you are watching a remake of the movie Frankenstein. In the scene you're viewing, the assistant (Igor) is showing Dr. Frankenstein some body parts that he forgot to put in their newly made Sensational Man. Dr. Frankenstein angrily yells at Igor, "You idiot! What will our Sensational Man do without his_______": a.) conesb.) feature detectorsc.) optic nerved.) cochleae.) olfactory bulbf.) kinesthetic receptors

  3. The Cerebrum • Outermost structure of the brain • Divided into two hemispheres • Each hemisphere has four lobes • Makes up 85% of the brain’s weight

  4. The Cerebrum -- Lobes • Frontal ____________________________ • Parietal ____________________________ • Temporal ___________________________ • Occipital ____________________________

  5. Cerebral Cortex • The gray-matter covering of the cerebrum • Carries on thinking and perceiving

  6. Cerebral Cortex • Gray matter: No special covering • Controls processing, new thoughts, perception, etc. • White matter: Covered in myelin sheath, which speeds up electric signals • Communicates with the rest of the brain

  7. Motor Cortex • Controls body movements • Motor cortex in each hemisphere controls the opposite side of the body

  8. Hemispheres • Left Hemisphere: • Literal interpretation of speech and language • Logical reasoning • Motor control for right side • Processes right side visual field • Objective analysis • Math skills

  9. Hemispheres • Right Hemisphere: • Looks “between the lines” • Intuition • “Reading” emotions • Visual & spatial reasoning • Motor control for left side • Processes left side of visual field • Subjective analysis • creativity

  10. Agenda – Thursday, February 6th • Finish cerebrum notes • Corpus Calossum • Neuroplasticity • Parts of the brain overview • Driving analogy • Homework: Brain overview analogy due MONDAY

  11. Hemispheres • Connected by the corpus callosum

  12. Neuroplasticity • Brain’s ability to change and reorganize itself in response to damage (brain “rewires” itself) • Neurogenesis: Brain’s recreation of neurons • http://abcnews.go.com/US/gabby_giffords/fullpage/gabby-giffords-journey-recovery-14914428

  13. Hindbrain • Contains most of the brainstem • Oldest part of the brain  “Reptilian Brain” • Processes work outside of consciousness “Just a shell…driven by mindless instinct”

  14. Parts of the Hindbrain • Medulla: _________________________ • Pons: ____________________________ • Cerebellum: _______________________

  15. Midbrain • Located right above hindbrain • Coordinates simple movements with sensory information

  16. Parts of the Midbrain • Reticular Formation: ____________________

  17. Forebrain • Responsible for most complex behaviors & mental processes • MOST processes here work outside of consciousness

  18. Parts of the Forebrain • Thalamus: ___________________________ • Hypothalamus: _____________________ • Hippocampus: ______________________ • Amygdala: _________________________ • Cerebral Cortex: _______________________ Limbic System

  19. Hindbrain • Contains most of the Brainstem • Oldest Part of the Brain “Reptilian Brain” • Processes work outside of consciousness Parts of the Brainstem: Medulla: Controls Blood Pressure, Heart Rate, & Breathing Pons: Critical to sleep . Also the “Bridge” to the brain. Behind the Brainstem Cerebellum: “Little Brain” that coordinates habitual muscle movements (Tracking Object w/ eyes, Playing instrument, Ice Skating) Also Handles Balance & Coordination Prepare body for possible danger!

  20. Forebrain Responsible for more complex behaviors & mental processes Thalamus: relay center for sensory information exceptsmell Limbic System (Deals w/ Emotion & Memory) Hypothalamus: Controls body temp., sexual arousal, hunger, thirst, & Endocrine System. Also controls Biological Rhythms & is a reward center. Amygdala: Provides emotional context for sensory information. (Linked to aggression & fear) Hippocampus: Encodes information into long-term memory.

  21. Midbrain • Located right above Hindbrain • Coordinates simple movements w/ sensory information Top of the Brainstem Reticular Formation: Controls level of awareness. (Without it, we fall into a coma)

  22. Walking Dead (S.1, E.6) – 19:00 – 23:30

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