1. Nervous System By the end of the lesson you should be able to
Describe the transmission of impulses from senses to central nervous system and back to muscles.
Describe the reflex action and the pathway of the reflex arc.
Describe the function of reflex response.
Describe the role of the central nervous system.

4. Basic nerve cell structure

5. 3 main types of nerve cells
sensory neurone
relay neurone
motor neurone

6. Sensory neurons
Carries impulses from receptors e.g pain receptors in skin to the CNS( brain or spinal cord)

7. Relay neuron
Carries impulses from sensory nerves to motor nerves.

8. Motor neuron
Carries impulses from CNS to effector e.g. muscle to bring about movement or gland to bring about secretion of hormone e.g ADH

9. Transmission of signals

10. The Synapse
parkinsons

11. Summary Function: To transmit messages from/ to brain & spinal cord
Structures:
Motor, relay & sensory neurons
Brain
Spinal cord

12. When good organs go bad… brain & nervous system disorders
Diseases of the nervous system include:
Kuru
Parkinson's
Obsessive Compulsive Disorder
Depression
Alzheimer's
Huntington’s disease
Multiple Sclerosis

13. When good organs go bad… brain & nervous system disorders
This is your normal, healthy brain.
This is your brain after a stroke!
What is different??

14. Nuclear Imaging Tech (MRI/CT)
Career Connection
Pharmacist
$93,000
What careers relate to the nervous system?
Sports Medicine
$29,000
Nuclear Imaging Tech (MRI/CT)
$53,000
Social Services
$50,000

15. Right brained or left brained?

16. Say the COLOR of the word, not what it spells…