Transcript File

WARM UP 4/12
1.Write down any parts of the brain you know
(ex:cerebrum)
2.Write down 3 other facts you know about
the brain
3.Write down 3 things you want to learn
about the brain.
NOTES Ch 11 4/12
Intro to the brain
BRAIN FACTS
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2% of body weight
Average 3 pounds
Over 100 billion neurons
Brain cells do not reproduce
Different areas of the brain process or
control different things
STRUCTURE
• Made of 2 HEMISPHERES – halves
Left and right
• *The left side of the brain controls the right side of
the body and vice versa
• CORPUS CALLOSUM – connects the 2
hemispheres
LEFT or RIGHT BRAINED??
Most people tend to use one side of their brain
more than the other….this shows up in the
way they do things, their personality, and
they way they learn.
We are going to take a test to see what side of
your brain you use the most……
When you are done with your test, use the key
to find out your score
LEFT-BRAINED
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Make lists, check them off
Good speller
Good in math
Formulas
Memorization
Can express themselves in words well
Like rules; follow them
Meet deadlines
Use of symbols
Good sense of time
Very logical in thinking
RIGHT-BRAINED
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Need to know why
Like hands-on learning
Go by gut feelings
Not good in spelling
Hard meeting deadlines; late work
Work on many things at once
Very creative
Hard time writing/ need many drafts
Know answers, not sure how got it
Do things randomly
Don’t like rules
Good at expression in art, music, and dance
LEFT
• Verbal
• Punctual
• Formal quiet study
• Sits still, long studying
• Not many gestures
when speaking
• Plans ahead
• Remembers people’s
names
RIGHT
• Visual
• Late
• Study with sounds/music
• Moves around while
studying
• Gestures a lot when
speaking
• Impulsive
• Remembers faces
CAN YOU SEE WHAT SCHOOLS ARE GEARED
TOWARD????
Right-brained people have a harder time in
school…need to find ways to develop and use
their left brain more.
Left-brained people, school is more natural to them.
GYRI – ridges
SULCI – grooves
These make up the “wrinkles” of the brain
These help increase surface area
FISSURES – deep grooves that divide the
brain into lobes
Different lobes (areas) receive different
impulses
1. FRONTAL LOBE – motor control
(muscle); language comp.; speech; problem
solving; reasoning; emotions
2. PARIETAL – skin senses; taste
3. TEMPORAL – hearing; interpretation;
memory; smell
4. OCCIPITAL - vision
CEREBRAL CORTEX – outermost layer of
the brain (gray matter)
WHITE MATTER – innermost layer of the
brain
VENTRICLES – cavities or spaces in the brain filled
with cerebrospinal fluid
BLOOD-BRAIN BARRIER –
* least permeable capillaries in the body
* most toxins, proteins, wastes, etc, cannot enter the
brain through blood
* gases, alcohol, nicotine, and many other drugs can
cross into the brain – destroys neurons
MAJOR DIVISIONS OF THE
BRAIN
1. Brain stem
* 3”long
* where the spinal cord ends into
* midbrain, pons, medulla
2. Diencephalon
* on top of the brain stem
* thalamus, hypothalamus, epithalamus
3. Cerebellum
* back of head
4. Cerebrum
* largest part of brain
* top of head
BRAIN LABELING
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Frontal lobe
Parietal lobe
Occipital lobe
Temporal lobe
Fissure
Gyri
sulci
1. Spinal cord
2. Medulla oblongata
3. Pons
4. Mamillary body
5. Pituitary gland
6. Ventricle
7. Corpus callosum
8. Cerebrum
9. Pineal gland
10. cerebellum
BRAIN PARTS: FUNCTIONS
Make into a chart format: PART
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Medulla
Pons
Midbrain
Cerebellum
Thalamus
hypothalamus
Cerebrum
FUNCTION
8. Pineal gland
9. Pituitary gland
10. Mamillary body