Презентация на тему Functions of autonomic nervous system

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2. The autonomic nervous systemThe autonomic nervous system
3. SOMATIC FUNCTIONS the perception of external irritations
4. A comparison of the arrangement of the
5. FEATURES OF NERVOUS FIBERSSOMATIC:Myelinated fibers, diameter -
6. STRUCTURE OF ANSTHE CENTRAL DEPARTMENTThe segmentary centers
7. Medullary, Pontine, and Mesencephalic Control of the
8. Autonomic control areas in the brainstem and hypothalamus
9. The organization of the autonomic nervous system
10. Sympathtic and Pparasympathetic innervations
11. “Alarm” or “Stress” Response of the Sympathetic
12. “Alarm” or “Stress” Response of the Sympathetic
13. Autonomic Effects on Various Organs of the Body
15. PROPERTIES OF THE VEGETATIVE GANGLIASDivergention ConvergenceSpatial and
16. VEGETATIVE REFLEXESThe central reflexes Peripheral reflexes Intraorganic Interorganic Axon-reflex
17. VEGETATIVE REFLEXESViscero-visceral Viscero-somatic Somato-visceral Viscero-dermal Dermo-visceral Viscero-sensitive
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The autonomic nervous systemThe autonomic nervous system helps to regulate the activities of cardiac muscle, smooth muscles, and glands. These effectors are part of the visceral organs (organs within the body cavities) and of blood vessels.

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A comparison of the arrangement of the autonomic neurons with the organization

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“Alarm” or “Stress” Response of the Sympathetic Nervous System1. Increased arterial pressure2.

“Alarm” or “Stress” Response of the Sympathetic Nervous System4. Increased blood glucose

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PROPERTIES OF THE VEGETATIVE GANGLIASDivergention ConvergenceSpatial and temporal summation Lability Synaptical a

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VEGETATIVE REFLEXESViscero-visceral Viscero-somatic Somato-visceral Viscero-dermal Dermo-visceral Viscero-sensitive

The role of cholinergic and adrenergic innervation in the autonomic nervous system

Слайды презентации

Слайд 2 The autonomic nervous system
The autonomic nervous system helps

The autonomic nervous systemThe autonomic nervous system helps to regulate the

to regulate the activities of cardiac muscle, smooth muscles,

and glands. These effectors are part of the visceral organs (organs within the body cavities) and of blood vessels.
Autonomic motor nerves innervate organs whose functions are not usually under voluntary control.
The involuntary effects of autonomic innervation contrast with the voluntary control of skeletal muscles by way of somatic motor neurons.

Слайд 3 SOMATIC FUNCTIONS
the perception of external irritations
impellent

SOMATIC FUNCTIONS the perception of external irritations impellent reactions of skeletal

reactions of skeletal muscles
are under the control of consciousness

VEGETATIVE

FUNCTIONS
Metabolism, growth and reproduction
work of the visceral system
are independent from consciousness

Слайд 4 A comparison of the arrangement of the autonomic

A comparison of the arrangement of the autonomic neurons with the

neurons with the organization of the somatic motor nerves

Слайд 5 FEATURES OF NERVOUS FIBERS
SOMATIC:
Myelinated fibers, diameter - 20

mcm, А-type, speed - 120 m/sec, AP - 1

msec, Lability - 200 imp/sec

VEGETATIVE:
Preganglionar fibers - myelinated, В-type, diameter - 5 mcm, 3-18 m/sec, postganlionic fibers – unmyelinated, С-type, diameter - 2 mkm, 0,5-3 m/sec
AP - 300 msec
Lability - 10 - 15 imp/sec

Слайд 6 STRUCTURE OF ANS
THE CENTRAL DEPARTMENT
The segmentary centers –

STRUCTURE OF ANSTHE CENTRAL DEPARTMENTThe segmentary centers – spinal cord, bulbar

spinal cord, bulbar and midbrain
Supersegmentary centers –
hypothalamus, cerebellum, basal

ganglias, cortex and limbic system

PERIPHERAL DEPARTMENT
microganglias of the metasympathetic nervous system para- and prevertebral ganglia preganglionic and postgangli- onic fibres

Слайд 7 Medullary, Pontine, and Mesencephalic Control of the Autonomic

Medullary, Pontine, and Mesencephalic Control of the Autonomic Nervous SystemMany neuronal

Nervous System
Many neuronal areas in the brain stem reticular

substance and along the course of the tractus solitarius of the medulla, pons, and mesencephalon, as well as in many special nuclei, control different autonomic functions such as arterial pressure, heart rate, glandular secretion in the gastrointestinal tract, gastrointestinal peristalsis, and degree of contraction of the urinary bladder

Слайд 8 Autonomic control areas in the brainstem and hypothalamus

Слайд 9 The organization of the autonomic nervous system

Слайд 10 Sympathtic and Pparasympathetic innervations

Слайд 11 “Alarm” or “Stress” Response of the Sympathetic Nervous System
1.

“Alarm” or “Stress” Response of the Sympathetic Nervous System1. Increased arterial

Increased arterial pressure
2. Increased blood flow to active muscles

concurrent
with decreased blood flow to organs such as the gastro-intestinal tract and the kidneys that are not needed for rapid motor activity
3. Increased rates of cellular metabolism throughout the body