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mental health + neurobiology > autonomic nervous system > Flashcards

autonomic nervous system Flashcards

1
Q

autonomic nervous system

A

efferent subdivision of the CNS

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2
Q

visceral sensory receptors

A

feeds into the central nervous system from the information coming out to control an activity

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3
Q

what 2 systems is the autonomic system divided into

A

1.sympathetic nervous system
2.parasympathetic nervous system

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4
Q

location of the sympathetic nervous system

A

thoracolumbar-thoracic spinal sections between t1(thoracic 1) and l2(lumbar 2)

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5
Q

parasympathetic nervous system

A

craniosacral (cranial 3, 7, 9 and 10) and sacral region (s2 -s4

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6
Q

what are the 4 things visceral things arise from

A

1.thermoreceptors
2.mechanoreceptors
3.chemoreceptors
4.pain receptors

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7
Q

what are thermoreceptors and their?

A

-they are in the skin
-give information about the body temperature compared to external temperature

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8
Q

what are mechanoreceptors and their function?

A

-these are in the gut wall, bladder wall and blood vessels
-these are gut stretches in the body for example to let you know to digest the food or when the bladder is full it lets it know when you need to urinate

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9
Q

chemoreceptors

A

-carotid bodies in the heart
-can detect blood changes in the blood to make an individual breathe faster to increase oxygen or slower the breathing
-(t1 to t5)

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10
Q

pain receptors

A

-responding to pain or anoxia
-they are similar to chemo receptors but if you stress something to much it will cause a pain sensation

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11
Q

why is there referred pain?

A

crosstalk between the autonomic inflow and cutaneous flow

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12
Q

which system does pain travel with

A

sympathetic nerves

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13
Q

what happens in t1 to l2 and l3 in the thoracolumbar?

A

-outflow comes out of the spinal cord via the anterior horn
-then travels out to form sympathetic ganglia

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14
Q

what is sympathetic ganglia

A

cluster of cells that form outside the vertebral column

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15
Q

what is the cell that is coming out of the spinal cord called

A

pre ganglionic

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16
Q

what is the cell coming out the ganglion called?

A

post-ganglionic which sends out information to different organs

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17
Q

adrenal gland

A

this is where information arises from spinal cord and travels all the way down to the adrenal gland which is the ganglion
acts to stimulate the cells to release adrenaline and noradrenaline

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18
Q

where does innovations arise in parasympathetic?

A

projects out to their ganglia towards their ganglia

19
Q

what’s the difference in cells situated in sympathetic and parasympathetic ?

A

1.sympathetic:ganglia is close to the spinal cord itself
2.parasympathetic: ganglia nerve travels all the way down to meet the ganglion which is close to the ganglion itself

20
Q

what does the three oscular motor control?

A

eyes

21
Q

what do facial nerves control?

A

1.salvation
2.tear production

22
Q

what does the vagus nerve control?

A

it is the wander -travels around the body innovating:
-lung
-heart
-liver
-digestive system
-reproductive system
-the nerves themselves

23
Q

what do the 2 to 4 come out and innovate?

A

gastrointestinal system which is on the lower end
-also innovates badder
-reproductive organs

24
Q

what does sympathetic system control?

A

fight, flight and fright behaviours

25
Q

what does the parasympathetic system control?

A

rest and digest behaviours

26
Q

what are the ganglia situated in the sympathetic called?

A

paravertebral- run down outside the vertebral column

27
Q

what are the parasympathetic ganglia close to

A

the target organ

28
Q

what do the pre ganglia fibres situated with the central nervous system feed out to?

A

power vertebral, sympathetic ganglion chain where they release acetylcholine on the post ganglionic cell which then travels to the travel organ and releases noradrenaline

29
Q

what do the sympathetic pre ganglion do in the adrenal glands?

A

the fibre exists the spinal cord , travels all the way down to the adrenal gland and travels all the way down and acts directly on the chromatin cells to release noradrenaline which is taken by the vasculature

30
Q

what do the sweat glands controlled in the sympathetic system release?

A

acetylcholine

31
Q

what controls the autonomic nervous system?

A

hypothalamus

32
Q

what region is the hypothalamus in and what does it control.

A

it is in the deicenphalaon where it controls the homeostasis

33
Q

hypothalamic pituitary axis

A
34
Q

hypothalamic pitatuary thyroid

A

controls metabolism

35
Q

hypothalamic pituitary gonadal

A

controls our reproductive organs

36
Q

what do projections coming out the brainstem do?

A

feed into the hypothalamus down to the brain stem
they also feed all the way down to the spinal cord to control

37
Q

what does hypothalamus control

A

-control of body temp
-control of fluid balance
-control of energy
-homeostatis
-control of sexual reproduction and reproduction

38
Q

what does medulla control?

A

1.respiratory centre
2.cardiac centre
3.vasomotar centre

39
Q

what do the hypothalamus and medulla feed into

A

the autonomic nervous system

40
Q

reflexes

A

spinal circuitry -controls function at a certain level

41
Q

what does the tonic activity do in reflexes?- this happens in the autonomic nervous system

A

-information comes from the gut into the sympathetic chain around up to the dorsal root to the spinal cord where it controls the motor flow
-or go out to the gut work and change activity

42
Q

what does tonic activity do to the muscles

A

relax the muscles or seek or increase the secretions

43
Q

what do hypothalamus do to the activates

A

regulate and deregulate normal reflexes

mental health + neurobiology (45 decks)

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