BASIC CONCEPT OF NEURO

1. INTRODUCTIO
N OF CNS

2. Divisions of the nervous
system
Central nervous system - encased in bone
◦ Spinal cord
◦ brain
Peripheral nervous system – everything else
◦ Somatic nervous system – voluntary control
◦ Sensory nerves
◦ Motor nerves
◦ Autonomic nervous system – no conscious control
◦ Sympathetic nervous system – fight or flight response
◦ Parasympathetic nervous system -

3. SPINAL CORD BRAIN

4. Organization of the CNS
Gray Matter: Contains neuron cell bodies
White Matter: Contains cell extensions organized into
tracts

6. Three Basic Functions of
spinal cord
oSensory Functions: Sensory receptors detect both
internal and external stimuli.
• Functional unit: Sensory or Afferent Neurons
o Integrative Functions: CNS integrates sensory input
and makes decisions regarding appropriate responses
• Functional Unit: Interneurons or Association Neurons of the
Brain and Spinal cord
o Motor Functions: Response to integration decisions.
• Functional Unit: Motor or Efferent Neurons

8. Basic function of brain

9. References:
Text Book- Essential of Medical Physiology: 4th edition. Sembulingam.
Jaypee Publication
Reference Book- Guyton and Hall Textbook of Medical Physiology: 12th
Edition. Hall JE. Saunders publication 2010

10. SELF STUDY
1.TYPES OF NEURONS & INTERNEURONS
2.STRUCTURE OF NERVE
3.NEUROMUSCULAR JUNCTION
4.COMPARISON OF GRADED VERSUS ACTION
POTENTIALS

11. TYPES OF NEURONS
TYPES OF NEURONS TYPES OF INTERNEURONS

12. STRUCTURE OF NERVE

13. NEUROMUSCULAR
JUNCTION

14. COMPARISON OF
GRADED VERSUS
ACTION POTENTIALS