the central and peripheral nervous systems n.
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The Central and Peripheral Nervous Systems. Students will: Know the divisions, structures and functions of each system. The Central Nervous System. Functions of the CNS.

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the central and peripheral nervous systems

The Central and Peripheral Nervous Systems.

Students will:

Know the divisions, structures and functions of each system.

functions of the cns
Functions of the CNS
  • The brain processes sensory information that is sent in through the spinal cord and other peripheral nerves and sends out responses to the muscle cells and glands.
functions of the brain
Functions of the Brain:
  • Cerebrum: The part of the brain that controls conscious activities. The home of intelligence, learning and judgment.
  • Cerebellum: coordinates and balances muscles during muscle movement.
  • Thalamus: directs nerve signals to the correctportion of the brain for processing
  • Hypothalamus: controls hunger, thirst, anger, and body temperature.
functions of the brain cont
Functions of the Brain cont.
  • Brain stem: controls involuntary actions that help keep you alive, (blood pressure, heart rate, breathing and swallowing).
  • The brain stem is the connection between the spinal cord and the brain
  • Limbic System:: associated with emotion, behavior, and memory.
white vs gray matter
White vs. Gray Matter
  • White Matter is found in the cerebrum, and connects the cerebrum to different areas of the brain.
  • Gray Matter makes up the cerebral cortex and controls body movements and processes sensory data.
  • The cerebrum is made up of White and Gray matter.
  • The inner part of the cerebrum is white matter while the outer layer is the cerebral cortex.
the brain and homeostasis
The Brain and Homeostasis

Hypothalamus controls hunger, thirst, and body temperature

Brain Stem controls heart rate, breathing and blood pressure.

the peripheral nervous system pns

The Peripheral Nervous System (PNS)

Divisions of the PNS

Types of Sensory Neurons

Reflex Arcs

Somatic vs. Autonomic System

divisions of the pns1

Transmits signals from the senses to the CNS

Reports internal and external stimuli to the CNS for processing


Transmits signals from the CNS to muscles and glands

Carries the CNS’s processed signals to muscles and glands in response to stimuli

Divisions of the PNS
motor division

Involuntary actions, or activities that are not under conscious control

Example” heartbeat, peristalsis


Regulates conscious body activities

Reflex Arcs, unconscious use of muscles

Motor Division