A short introduction to the ANS for the medical students . I have treid to make it as simple as I can. Thank you

1.  COORDINATES THE REGULATION AND
INTEGRATION OF BODILY FUNCTIONS.
 ACTIVITIES ARE NOT UNDER DIRECT
CONSCIOUS CONTROL.

2. 1
PERIPHERAL
NERVOUS
SYSTEM
NERVOUS
SYSTEM
2
CENTRAL
NERVOUS
SYSTEM

3.  BRAIN
 SPINAL CORD

4.  EFFERENT/MOTOR NEURONS CARRY SIGNALS
AWAY FROM THE CNS.
 AFFERENT/SENSORY NEURONS CARRY SIGNALS
TOWARDS CNS.
PERIPHERAL NERVOUS SYSTEM
NEURONS ARE LOCATED
OUTDISE CNS.
A-EFFERENT
DIVISION
B- AFFERENT DIVISION

5. a- AUTONOMIC NERVOUS SYSTEM
a- AUTONOMIC
NERVOUS SYSTEM
b- SOMATIC NERVOUS
SYSTEM
ENTERIC
BRAIN OF THE GUT
PARASYMPATHATIC
CRANIOSACRAL
DIVISION
SYMPATHATIC
THORACOLUMBAR
DIVISION

7.  THIRD DIVISION OF ANS.
 INNERVATE GIT, PANCREAS AND
GALLBLADDER.
 CONSTITUTES THE BRAIN OF THE GUT.
 MODULATED BY BOTH PARASYMPATHETIC
AND SYMPATHATIC NERVOUS SYSTEMS.

8.  PREGANGLIONIC FIBRES ARISE FROM CRANIAL NERVES
(III,VII,IX,X) & SACRAL REGION (S2 TO S4) OF THE SPINAL
CORD.
 KNOW AS CRANIOSACRAL REGION.
 DOMINANT IN REST AND DIGEST SITUATIONS.
 MAINTAIN HOMEOSTASIS.
 EXAMPLES INCLUDE DIGESTION AND ELIMINATION OF
WASTES.

9.  PREGANGLIONIC NEURONS ORIGINATE IN THORACIC
AND LUMBAR REGION (T1 & L2) OF SPINAL CORD.
 KNOWN AS THORACOLUMBAR REGION.
 RSPONDS TO STRESSFUL SITUTAIONS.
 PREPARES BODY FOR FIGHT AND FLIGHT RESPONSE BY
INCREASING HEART RATE AND BP , INCREASES BLOOD
FLOW TO MUSCLES & HEART, DILATES PUPIL.

12. NEURON
 ALSO CALLED AS A NERVE CELL.IT IS THE BASIC
STRUTUCRAL AND FUNCTIONAL CELL OF THE
NERVOUS SYSTEMS.
 PROCESSES AND TRANSMITS INFORMATION
THROUGH ELECTRICAL AND CHEMICAL
SIGNALS.

13.  A NEURON WHOSE CELL BODY IS LOCATED WITHIN THE
CENTRAL NERVOUS SYSTEM.
 CONTAINS A MYELINATED AXON THAT TRAVELS OUT OF
THE CNS.
 MAKE A SYNAPTIC CONNECTION IN GANGLION
(AGGREGATION OF NERVE CELL BODIES LOCATED IN
PERIPHERAL NERVOUS SYSTEM).

15.  NEURON WHOSE CELL BODY IS LOCATED WITHIN A
GANGLION OUTSIDE CNS AND WHOSE FIBRES EXTEND
FROM THE GANGLION TO THE EFFECTOR ORGANS.
 USUALLY NON-MYELINATED.
 GANGLIA SERVE AS RELAY STATION BETWEEN THE PRE
AND POST GANGLIONIC FIBRES (SEE PREVIOUS SLIDE).

16. THANK YOU