1. Unit 2 Notes: The Brain

2. (1) Brain Hemispheres Hemispheres = Different Sides of the Brain
YOUR Right = Right Hemisphere
Controls Left side of body
YOUR Left = Left Hemisphere
Controls Right side of body

4. (2) Brain Lobes Lobes = Different Regions of Brain
Each Region has a unique set of functions
Functions based on which neurons are connected where
Perpendicular to hemisphere line = Sensory & Motor Division

6. (3) Frontal Lobe Speech Production (Broca’s Area) Concentration
Problem Solving
Planning
Voluntary Muscle Control
Broca = produces speech

7. (4) Parietal Lobe Interpretation of speech, sounds, surroundings
Skin sensations
Wernicke = speech interpretation

8. (5) Temporal Lobe Interpret sensations Visual & Auditory Memory
Hearing function
Ability to learn + connect concepts
Includes:
Thalamus
Hypothalamus
Pituitary Gland
Corpus Collosum
Limbic System

10. (6) Stuff In Your Temporal
Thalamus = Sensory reception
Hypothalamus = Control Body Temperature, Maintain fluid + ion levels, Regulates Metabolism, Sleep
Limbic System = Emotions
Pituitary = Regulate hormone secretion
Corpus Collasum = Connective tissue between left and right hemispheres

11. (7) Occipital Lobe
Vision
Combines images to make complete picture

12. (8) Cerebellum Coordinates muscle movement
Maintains normal muscle tone
DOES NOT MAKE MUSCLES MOVE!
Makes them move smoothly!

13. (9) Brain Stem Passes info between spinal cord + brain Includes:
Midbrain
Pons
Medulla Oblongata

14. (10) Stuff in Brain Stem Midbrain:
Fight or Flight responses (based of past)
Helps with vision + auditory senses
Pons:
Respiratory Reflexes
General Breathing Rate
Medulla Oblongata:
Maintains Homeostasis
Heartbeat, Blood pressure, Digestive reflexes
Also assists pons in respiration