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