Download Unit 01 Biology and the Brain_Part 2

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Transcript
Cerebellum
• Bottom rear of the
brain.
• Means “little brain”
• Size of a baseball
• Coordinates fine
muscle movements,
non verbal learning
Cerebellum
Thalamus
• Switchboard of the
brain.
• Receives sensory
signals from the
spinal cord and
sends them to other
parts of the
forebrain.
• Every sense except
smell.
The Limbic System
Hypothalamus
• May be most
important structure
in the brain.
Controls and regulates
• Body temperature
• Sexual Arousal
• Hunger
The most powerful
• Thirst
structure in the brain.
• Endocrine System
Hippocampus
• Involved in the
processing and
storage of
memories.
Amygdala
• Involved in how
we process
memory.
• More involved
in volatile
emotions like
The emotion of anger has
anger.
not changed much
throughout evolution.
The Cerebral Cortex
• Made up of densely
packed neurons we
call “gray matter”
• Wrinkles are called
fissures.
• If you lay brain out it
would be as big as a
large pizza.
The Cerebral Cortex is made up
of four Lobes.
Frontal Lobes
• Making plans, judgment,
speaking
• Contains Motor Cortex:
sends signals to our body
controlling muscle
movements.
• Contains Broca’s Area:
responsible for controlling
muscles that produce
speech.
• Damage to Broca’s Area is
called Broca’s Aphasia:
unable to make movements
to talk.
Motor and Sensory Cortexes
Parietal Lobes
• Contain Sensory
Cortex: receives
incoming touch
sensations from
rest of the body.
Occipital Lobes
• Deals with vision.
• Contains Visual
Cortex: interprets
messages from our
eyes into images we
can understand.
Temporal Lobes
• Process sound sensed
by our ears.
• Interpreted in
Auditory Cortex.
• Contains Wernike's
Area: interprets
written and spoken
speech.
• Wernike's Aphasia:
unable to understand
language: the syntax
and grammar jumbled.
Association Areas
• Any area not associated with receiving
sensory information or coordinating muscle
movements.
The Corpus Callosum
Divides the 2
hemispheres,
connects and
carries
message b/w
the 2
hemispheres