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Parts of the Brain
Chapter 6 Section 2
Hindbrain
Rear base of skull Basic processes of life Includes:
Cerebellum Picture favorite athlete
with bells on Medulla
Medals on heart and lungs
Pons Relaxing pond
Midbrain
Medulla and Pons Reticular Activating
System (RAS) Alerts brain of signals Think about if you were
napping and someone tickled you
Forebrain
Covers brain’s central core
Outer layer = cerebral cortex
Inner layer = cerebrum Includes the limbic
system Thalamus Hypothalamus Hippocampus Amygdala
Limbic System
Thalamus Hal and Amos directors
of traffic Hypothalamus
Hypo the Llamas Amygdala
Look out a MIG! Hippocampus
The Hippo who forgot his compass and can’t find his way home
Lobes of the Brain
http://www.pbs.org/wnet/brain/3d/index.html
Left and Right Hemispheres
Connected by Corpus Callosum Left hemisphere controls right side and right
hemisphere controls left side Left = language, logic, logarithms (math) Right = visual and spatial Relations, Recognizing
patterns, aRt, Rhumba(music) Band of fibers that connect the cerebral
hemispheres 2 hemispheres communicate
Split Brain Operations
Stops violent seizures
Accidents – Phineas Gage
Methods
Recording – EEG Stimulating
Determine what functions different parts perform and can determine where the problem lies
Pain relief Lesioning
Performed on Rhesus monkeys Imaging
Imaging
1. CAT – Computerized Axial Tomography• Radiation
2. PET – Positron Emission Topography• Radioactive solution injected – active neurons absorb
radiation
3. MRI - Magnetic Resonance Imaging• Shows activity and structure – radio frequencies
4. FMRI – Functional Magnetic Resonance imaging• Observe functions and structures• No radio frequencies – based on blood oxygen levels
Imaging
http://www.pbs.org/wnet/brain/scanning/index.html