Transcript Nervous System

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The Brain
Unit 6
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The Brain
 Your
brain contributes to homeostasis by
receiving sensory input, integrating new
and stored information, making
decisions, and causing motor activities.
 It
controls intelligence, emotions,
behavior, and memory.
 The
brain weighs 3 lbs and has more
synapses than there are stars in the Milky
Way Galaxy (1015)
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The Brain
 The
brain is the control center of the entire
nervous system.
 White
matter in the brain are parts that
have more fat, which help speed up nerve
impulses.
 Gray
matter does not have that fat, called
myelin.
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The brain: Cerebrum
 The
cerebrum makes up the majority of
your brain.
 It
controls conscious activities, intelligence,
memory, language, movement and the
senses.
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The brain: Cerebellum
 The
cerebellum is located at the back of
your brain.
 It
controls your balance, posture, and
coordination.
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The brain: Brain Stem
 The
brain stem is where
the brain connects to the
spinal cord.
 It
controls involuntary
activities and relays
messages to and from the
brain.
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The brain: Brain Stem
 The
brain stem includes:
 The
medulla oblongata controls breathing and
heart rate.
 The
 The
pons helps the brain communicate.
midbrain helps control both sight and
movement
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The brain: Diencephalon
 The
 It
diencephalon is above the brain stem.
contains the
 Hypothalamus: releases
and controls hormones and
glands
 Thalamus: regulates sleep and alertness
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Other brain parts
 Hippocampus:
controls memory
 Corpus
Callosum:
made of white matter,
helps the brain
communicate
 Pituitary
gland: main
gland that makes
hormones
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Diseases and Disorders
 Multiple
sclerosis (MS): myelin around the neurons
is damaged, communication slows, body stops
responding
 Depression: lower
 Shingles: caused
levels of serotonin in the brain
by the chicken pox virus,
damages nerve ends and causes pain
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Diseases/Disorders
 Parkinson’s
Disease: cells can’t make dopamine,
body stops responding, brain stops all processes
 Alzheimer’s
Disease: build up of protein in the
brain, causing memory loss and loss of body
functions
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Unit 6 Diseases and Disorders
Disease
Alzheimer’s
Depression
ADHD
Hydrocephalus
Ataxia
Concussion
Aphasia
Stroke
Brain Tumor
TIA
Reye’s
Syndrome
Aging
Cause
Symptoms
Susceptibility Treatment
Prognosis
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Brain Project: Creative Writing
Individual
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1. Write a short story, poem, play, etc. incorporating what you
learned about the brain and the nervous system. It should be
700-1500 words in length.
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2. Then, write a 4 essay paragraph explaining:
 The anatomy of the brain
 The physiology of the brain
 How the brain helps the body maintain homeostasis
 How your creative writing piece integrates knowledge of
the brain and nervous system into your story
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3. Extra credit will be offered to those who choose to read
their creative writing portions of the assignment out loud to
class.