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Nervous System.

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Presentation on theme: "Nervous System."— Presentation transcript:

1 Nervous System

2 Functions gathers & interprets information responds to the information

3 Two Parts Central Nervous System (CNS) Peripheral Nervous System (PNS)

4 Organs of CNS brain spinal cord

5 Organs of PNS all other parts of nervous system nerves

6 The Peripheral Nervous System
What is a nerve? collection of axons bundled together with blood vessels and connective tissue

7 Parts of the PNS Somatic Nervous System Autonomic Nervous System
Read page 229

8 The Central Nervous System
BRAIN control center for the body each region associated w/ specific functions

9 CEREBRUM divided into right and left hemispheres
conscious functionings interpreting stimuli from senses

10 CEREBRUM sensory detection motor control of skeletal muscles

11 CEREBELLUM second largest portion fine motor coordination
body movement posture balance

12 BRAIN STEM parts: medulla oblongata pons midbrain

13 BRAIN STEM controls: heart rate constriction of blood vessels
digestion respiration

14

15 SPINAL CORD bundle of interneurons surrounded by the vertebral column
cranium to hip area

16 SPINAL CORD provides connection b/w the brain and the extremities & region of the body associated with reflex actions

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