1. Anatomy - Nervous System
Characteristics & Functions of the Nervous System
November 28, 2017

2. Anatomy-Nervous System Introduction
What do you know about the nervous system?

3. Anatomy-Nervous System Objectives
Students will be able to:
Define terms relative to the nervous system.
Identify characteristics & functions of the nervous system.

4. Anatomy-Nervous System Terminology
Central
The center
Originating from the center
Peripheral
Away from the center
Outer part of a body system

5. Anatomy-Nervous System Terminology
Sensory
Relating to senses or sensation
Impulse travels toward spinal cord & brain
Motor
Movement
Impulse travels from brain & spinal cord

6. Anatomy-Nervous System Divisions
Central Nervous System (CNS)
Consist of the brain & spinal cord
Control center of the body
Receives sensory information & responds to it
Protected by bone

7. Anatomy-Nervous System Divisions
Sensory & Motor Response
Place your pen/pencil on your desk.
Look at where it is
Close your eyes
Find & pick up your pen/pencil

8. Anatomy-Nervous System Divisions
Describe what happened in order of occurrence
Reached for pen/pencil
Stimulus of touching pen/pencil triggered nerve impulse in sensory nerves in fingers
Sensory impulse traveled through spinal cord to brain, giving you clues that object was a pencil
Motor impulse sent back to fingers through spinal cord and you pick up pen/pencil

9. Anatomy-Nervous System Divisions
Peripheral Nervous System (PNS)
Nerves located outside the CNS
Nerves connect CNS to other parts of body
Consists of sensory & motor nerves
Not protected by bone

10. Anatomy-Nervous System Divisions
Peripheral Nervous System (PNS)
Consists of nerves only
43 pairs of nerves
12 cranial nerves
31 spinal nerves

11. Anatomy-Nervous System Peripheral Nervous System
Autonomic
Regulates involuntary action
Controls smooth muscle, cardiac muscle & glands

12. Anatomy-Nervous System Peripheral Nervous System
Somatic
Regulates voluntary action
Controls skeletal muscle action

13. Anatomy-Nervous System