Download Introductory Psychology Concepts

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The Brain and Behavior:
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Divisions of the Nervous System
Neurons – Structure and Communication
Structures and Functions of the Brain
Brain Damage, Plasticity, and Repair
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Introductory Psychology Concepts: The Nervous System
The Nervous System
Complex neural network carrying
information throughout the body
Nervous System
Central Nervous
System (CNS)
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Peripheral Nervous
System (PNS)
The Nervous System
Introductory Psychology Concepts: The Nervous System
The Nervous System
Complex neural network carrying
information throughout the body
Nervous System
Central Nervous
System (CNS)
• Composed of the
brain and spinal cord.
• Spinal cord is the
primary means for
transmitting
messages between
the brain and the rest
of the body.
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Peripheral Nervous
System (PNS)
Central Nervous System
Introductory Psychology Concepts: The Nervous System
The Nervous System
Complex neural network carrying
information throughout the body
Nervous System
Peripheral Nervous
System (PNS)
Central Nervous
System (CNS)
• Made up of neurons
with long axons and
dendrites.
• Branches out from
the spinal cord and
brain to reach the
extremities of the
body.
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Peripheral Nervous System
Introductory Psychology Concepts: The Nervous System
The Central Nervous System
Central Nervous System
Central Nervous System
(CNS)
Brain
Forebrain
Midbrain
Thalamus
Cerebrum
Spinal cord
Hindbrain
Hypothalamus
Limbic
system
Corpus
callosum
Cerebellum
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Pons
Medulla
Introductory Psychology Concepts
Peripheral Nervous System
Peripheral Nervous System
(PNS)
Somatic division
Autonomic
division
Somatic division
• Voluntary muscle
activation
Autonomic division
• Controls smooth muscle,
cardiac muscle, and glands;
• Basically involuntary
Sympathetic
(generally activates)
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Parasympathetic
(generally inhibits)
Introductory Psychology Concepts
Peripheral - Somatic System
Sensory neurons: Afferent
Carrying messages to the central nervous
system
Motor neurons: Efferent
Carrying messages from the central
nervous system to the voluntary muscles
Dendrites
Axon
Cell body
Myelin
sheath
The Primary Components of the Neuron
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Terminal buttons
Peripheral -Somatic System
Introductory Psychology Concepts
Peripheral Autonomic System
Chain of sympathetic ganglia
Eye:
Dilates pupil
Sympathetic division:
Salivary glands:
Inhibits flow of saliva
• Fight, flight, or
freeze response
• Acts to prepare the
body for action in
stressful situations,
engaging all the
organism’s
resources to
respond to a threat.
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Heart:
Accelerates heartbeat
Lungs:
Dilates bronchi
Postganglionic fibers
Digestive tract:
Inhibits digestion
Liver:
Stimulates release
of glylcogen
Ganglion
Secretion of
epinephrine by
adrenal gland
Urinary bladder:
Inhibits bladder
contraction
Introductory Psychology Concepts
Peripheral Autonomic System
Parasympathetic
division:
• Maintaining normal
functions
• Acts to calm the
body after an
emergency or
stressful situation
has ended.
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Eye:
Constricts pupil
Salivary glands:
Stimulates flow of
saliva
Heart:
Slows heartbeat
Lungs:
Constricts bronchi
Digestive tract:
Stimulates digestion
Liver:
Stimulates release
of bile
Urinary bladder:
Contracts bladder
Introductory Psychology Concepts: The Neuron and the Synapse
Identify parts of the neuron and synapse and
describe how they communicate information.
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Introductory Psychology Concepts: The Neuron and the Synapse
Identify parts of the neuron and synapse and
describe how they communicate information.
© The McGraw-Hill Companies, Inc.
Introductory Psychology Concepts: The Neuron and the Synapse
Identify parts of the neuron and synapse and
describe how they communicate information.
© The McGraw-Hill Companies, Inc.
Introductory Psychology Concepts: Resting Potential and Action Potential
Describe the ions used in maintaining the resting
potential and in producing the action potential.
© The McGraw-Hill Companies, Inc.
Introductory Psychology Concepts: Resting Potential and Action Potential
Describe the ions used in maintaining the resting
potential and in producing the action potential.
© The McGraw-Hill Companies, Inc.
Introductory Psychology Concepts: Resting Potential and Action Potential
Describe the ions used in maintaining the resting
potential and in producing the action potential.
© The McGraw-Hill Companies, Inc.
Introductory Psychology Concepts: Resting Potential and Action Potential
Describe the ions used in maintaining the resting
potential and in producing the action potential.
© The McGraw-Hill Companies, Inc.
Introductory Psychology Concepts: Resting Potential and Action Potential
Describe the ions used in maintaining the resting
potential and in producing the action potential.
© The McGraw-Hill Companies, Inc.
© The McGraw-Hill Companies, Inc.