C
Both
B and
C
17%
17%
17%
17%
17%
17%
Which of the following is used to map the
structure
of a brain?
A.
EEG
B.
MRI
C.
fMRI
D.
CT
E.
Both A and C
F.
Both B and C
Major Structures of the Human Brain
Major Structures of the Human Brain
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Major Structures of the Human Brain
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The Hindbrain
The Hindbrain
–
Medulla
–
First large swelling at the top of the spinal cord, forming the
lowest part of the brain
▪
Responsible for life-sustaining functions such as breathing,
swallowing, and heart rate
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The Hindbrain
The Hindbrain
–
Pons
–
larger swelling above the medulla that connects
the top of the brain to the bottom
▪
Plays a part in sleep, dreaming, left
–
right body
coordination, and arousal
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The Hindbrain
Medulla
Pons
The Hindbrain
•
Reticular formation (RF)
•
area of neurons running through the middle of the
medulla and the pons and slightly beyond
–
Responsible for selective attention
–
Coma and death
–
Fatigue, disrupted sleep, and changes in sexual arousal
•
Cerebellum
•
part of the lower brain located behind the pons
–
Controls and coordinates involuntary, rapid, fine motor
movement
–
Failure of smooth movement
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Limbic System
The Limbic System
•
A group of several brain structures located
under
the cortex
and involved in learning, emotion,
memory, and motivation.
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The Limbic System
•
Thalamus
–
Part of the limbic system located in the center of the
brain
–
Relays sensory information from the lower part of the
brain to the proper areas of the cortex
–
Processes some sensory information before sending
it to its proper area
Figure 2.13 The Limbic System
