a short introduction to the autonomic nervous system
TRANSCRIPT
![Page 1: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/1.jpg)
SHORT INTRODUCTION TO THE AUTONOMIC NERVOUS
SYSTEM
COORDINATES THE REGULATION AND INTEGRATION OF BODILY FUNCTIONS.
ACTIVITIES ARE NOT UNDER DIRECT CONSCIOUS CONTROL.
![Page 2: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/2.jpg)
THE HUMAN NERVOUS SYSTEM DIVISIONS
1PERIPHERAL NERVOUS
SYSTEM
NERVOUS SYSTEM
2CENTRAL NERVOUS SYSTEM
![Page 3: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/3.jpg)
THE CENTRAL NERVOUS SYSTEMS
BRAIN
SPINAL CORD
![Page 4: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/4.jpg)
1-THE PERIPHERAL NERVOUS SYSTEM
EFFERENT/MOTOR NEURONS CARRY SIGNALS AWAY FROM THE CNS.
AFFERENT/SENSORY NEURONS CARRY SIGNALS TOWARDS CNS.
PERIPHERAL NERVOUS SYSTEMNEURONS ARE LOCATED
OUTDISE CNS.A-EFFERENT DIVISION
B- AFFERENT DIVISION
![Page 5: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/5.jpg)
A-EFFERENT DIVISION
a- AUTONOMIC NERVOUS SYSTEM
a- AUTONOMIC NERVOUS SYSTEM
b- SOMATIC NERVOUS SYSTEM
ENTERIC BRAIN OF THE GUTPARASYMPATHATIC CRANIOSACRAL DIVISIONSYMPATHATIC THORACOLUMBAR DIVISION
![Page 6: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/6.jpg)
THE NERVOUS SYSTEM SUMMARISED
![Page 7: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/7.jpg)
THE ENTERIC NERVOUS SYSTEM THIRD DIVISION OF ANS. INNERVATE GIT, PANCREAS AND
GALLBLADDER. CONSTITUTES THE BRAIN OF THE
GUT. MODULATED BY BOTH
PARASYMPATHETIC AND SYMPATHATIC NERVOUS SYSTEMS.
![Page 8: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/8.jpg)
PARASYMPATHETIC NERVOUS SYSTEM
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.
![Page 9: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/9.jpg)
SYMPATHETIC NERVOUS SYSTEM
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.
![Page 10: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/10.jpg)
SYMPATHEITIC AND PARASYMPATHETIC NERVOUS SYSTEMS , A COMPARISION
![Page 11: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/11.jpg)
PARASYMPATHETIC AND SYMPATHETIC NERVOUS SYSTEM, A COMPARSION
![Page 12: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/12.jpg)
THINGS TO REMEMBERNEURON 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.
![Page 13: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/13.jpg)
PREGANGLIONIC NEURON 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).
![Page 14: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/14.jpg)
PREGANGLIONIC NEURON
![Page 15: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/15.jpg)
POSTGANGLIONIC NEURON 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).
![Page 16: A short introduction to the Autonomic Nervous System](https://reader035.vdocuments.site/reader035/viewer/2022070514/587daca91a28abae2f8b519f/html5/thumbnails/16.jpg)
THAT’S ALL FOLKSTHANK YOU