Transcript Lecture 5:
Lecture 5:
The Brain
Nervous System (neurons)
CNS
Central Nervous
System
Brain + Spinal cord
PNS
Peripheral Nervous
System
(All nerves that reach
your extremities).
The BRAIN
The brain....
The brain is divided into two halves
called hemispheres, which
communicate with each other through
the Corpus Callosum (A bundle of
nerve fibers).
Brain structures
Cerebral Cortex
Cerebellum
Brain Stem
Hypothalamus
Thalamus
Limbic System
Hippocampus
Basal Ganglia
Midbrain
Brain structure/function
Cerebral Cortex
Thought
Voluntary movement
Language
Reasoning
Perception
Brain structure/function
Cerebellum
Movement
Balance
Posture
Brain structure/function
Brain Stem
Breathing
Heart rate
Blood pressure
Brain structure/function
Hypothalamus
Body temp.
Emotions
Hunger
Thirst
Circadian rhythms
Brain structure/function
Thalamus
Sensory motor integration
Brain structure/function
Limbic System
Emotional behavior
Brain structure/function
Hippocampus
Learning
Memory
Brain structure/function
Basal Ganglia
Movement coordination
Brain structure/function
Midbrain
Vision
Audition
Eye movement
Body movement
Posture
The
average brain weighs
about 1,400gr (3lb)..
Each hemispheres of the
Cerebral Cortex is divided into
four lobes.
Grooves
and bumps on the
brain surface are called Sulci
and Gyri.
The folding of the Cerebral
Cortex increases the amounts
of Cerebral Cortex that can fit in
the skull.
http://faculty.washington.edu/chudler/lobe.html
Occipital lobe
Located
in the back of the brain,
behind the parietal lobe and the
temporal lobe.
Concerned with many aspects of
vision.
Frontal lobe
Located
in the front of the central
sulcus
Concerned with reasoning,
planning, parts of speech and
movement, emotions and problem
solving.
Temporal lobe
Located
below the lateral fissure
Concerned with perception and
recognition of auditory stimuli
(hearing) and memory.
Parietal lobe
Located
behind the central sulcus
Concerned with perception of
stimuli related to touch, pressure,
temperature and pain.
Alzheimer’s
Alzheimer’s