The Nervous System
The Endocrine System
The Brain
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We inherit traits from our parents through
genes
Genes are made up of units of DNA that are
our genetic makeup
They are assembled into Chromosomes: we
have 46 (23 from each parent)
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All behavior can not be linked to genetics but
some things can be like genetic disorders
 Ex: Down Syndrome is caused by a fragment in
the 21st chromosome
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On your own, read “Choosing your Children’s
Genes” on pg. 46.
After reading, answer the 4 questions in your
packet.
1. There are two types of ways your body
communicates internally. They are…
- Through the nervous system
-Through the endocrine system
2. The nervous system usually generates your first,
quick response.
3. Your endocrine system is run by your hormones
which act as transmitters to the brain.
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Network of neurons
Neurons – cells that specialize in receiving
and transmitting information through the
body
Split into Central and Peripheral Nervous
System
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The Nervous System
http://www.youtube.com/watch?v=xx-f9Y8wjg&feature=related&safety_mode=tru
e&persist_safety_mode=1&safe=active
Neurons and how they work:
http://www.youtube.com/watch?v=FR4S1Bq
dFG4&feature=related&safety_mode=true&
persist_safety_mode=1&safe=active
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Made up of the brain and the spinal cord
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Connects the Central nervous system to the
rest of the body
Split into Autonomic and Somatic Nervous
Systems
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Part of Peripheral Nervous System
Sends messages to internal organs
Coordinates functions of internal organs
 Ex: respiration or digestion
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Part of Peripheral Nervous System
Send messages to body’s muscles
 This is what allows you to text
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Biochemical substances that stimulate or
suppress other neurons
Imbalances can cause major disorders
Ex: Dopamine, Serotonin
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Fill out the chart using the placards
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Endocrine glands release hormones into the
bloodstream where they affect a wide array
of bodily functions and behaviors
They coordinate with the nervous system
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Hypothalamus- part of the brain that directs
activity in the endocrine system.
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Pituitary gland (master gland) – receive
messages from the hypothalamus to
stimulate or inhibit the release of other
glands hormones
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Endocrine System and the Pituitary gland
Brain Pop
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Using pg. 57 in the text
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Thyroid Issues:
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Underactive – lack of energy, weight gain, dry skin or hair
Overactive- Increased nervousness, rapid heart beat,
weightloss
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Pancreas Issues:
 Type 2 Diabetes
 Pancreatitis
▪ Flu-like symptoms, Weight decrease, rapid pulse
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Involved in complex mental processes
Separated into 4 lobes
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Regulates coordinated movements
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Sets brains alertness level and warning
system
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Pathway for neurons traveling to and from
the brain
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Manages body internal state
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Regulate motor movement and cognitive
abilities like planning and decision making
Personality
Motor Cortex- controls the body’s voluntary
muscles
 Motor speech area (Broca’s area)
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Process sensory information like touch,
temperature, body position and pain
Right half communicates with the left side of
the body – Left half communicates with the
right side of the body
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Processes Sounds
Stores long term memories
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Processes vision and
sensations from the
eyes
 Color, movement,
shape, shading, and
face recognition
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http://www.youtube.com/watch?v=4Qi5_dA
NWYo&feature=related&safety_mode=true&
persist_safety_mode=1&safe=active
AREAS OF LEFT-HEMISPHERE
DOMINANCE:
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Verbal functions (for
right-handers and most
left-handers), including
spoken and written use of
language, as well as
logical analysis, problem
solving, and
mathematical
computation
AREAS OF RIGHT-HEMISPHERE
DOMINANCE:
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Nonverbal functions,
including understanding
spatial relationships (as
presented, e.g., in jigsaw
puzzles or maps),
recognizing faces and
interpreting gestures,
perceiving and expressing
emotion, and
appreciating music and
art
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1 volunteer
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Students should separate into pairs and
choose one person to be the observer.
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Involved left hemisphere functions (verbal,
math, analytic)
Trend- eye movements to the right when
processing the question
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Involved right hemisphere functions
(nonverbal, spatial, holistic)
Trend – eye movement to the left from
processing
Documentary on the teenage brain
http://www.youtube.com/watch?v=vqr3Bvnw
KKE&feature=BFa&list=PLDECBFADE33B10F
AE&lf=player_embedded&safety_mode=true
&persist_safety_mode=1&safe=active
Blue
Green
Red
Yellow
Red
Orange
Green
Brown
Yellow
Purple
Red
Orange
Blue
Blue
Green
Red
Yellow
Red
Orange
Green
Brown
Yellow
Purple
Red
Orange
Blue