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yr2 Control + Movement > 7 (C) SNS ANS > Flashcards

7 (C) SNS ANS Flashcards

1
Q

ANS is influenced by the hypothalamus how (position)

A

Rostrally

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2
Q

Visceral organs receive both what

A

CNS / PNS

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3
Q

PNS visceral motor division have what fibres to what structures

A

Efferent motor fibres to smooth muscle

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4
Q

ANS is only carried via …..

segments

A

T1 - L2

S2 - S4

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5
Q

What part of the spinal cord does the PNS travel down

A

Lateral grey horn

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6
Q

Preganglionic neurone is found in what?

A

CNS

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7
Q

Pastganglionic neurone + autonomic ganglion is found in what?

A

PNS

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8
Q

SNS flows from what segments

A

T1 - L2

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9
Q

What type of effect does the SNS have

A

Widespread

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10
Q

What type of outflow is the PNS

A

Craniosacral outflow

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11
Q

What CN are involved in the PNS

A

CN 3
CN 7
CN 9
CN 10

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12
Q

is the organ plexuses post / pre ganglionic

A

Post

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13
Q

What type of effect is the PNS

A

Localized

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14
Q

The pelvic splanchnic nerves are ….

segments

A

S2 - S4

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15
Q

The pelvic splanchnic nerves do what to the bladder / rectum / penis?

A

Open bladder

Empties rectum

Erections

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16
Q

SNS transmitter pre ganglionic

SNS transmitter post ganglionic

A

AcH

NE // epinephrine

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17
Q

How does the SNS affect the adrenal medulla

A

Preganglionic go straight to the adrenal medulla and directly release NE into BS

NO post ganglionic fibres used

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18
Q

the Cardiopulmonary system synapse at what ganglia

what level is this at

A

Paravertebral ganglia at entry

*first barrier of nuclei

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19
Q

the digestive system synapse at what ganglia

what level is this at

A

DOES NOT SYNAPSE AT SYMPATHETIC TRUNK

Goes to prevertebral ganglia for synapse // adrenal medulla

(*2nd barrier of nuclei)

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20
Q

how does the fibres for face / gland / eyes travel in the SNS

A

Ascend / descend to another ganglion in trunk

21
Q

The White Ramus Communicans have what type of fibres

What levels do they come from?

A

Myelinated preganglionic SNS fibres

T1 - L2

22
Q

Grey Ramus Communicans have what type of fibre?

What levels do they come from?

A

Unmyelinated postganglionic fibres

All levels of cord

23
Q

Voiding

A

Drain away // discharge

24
Q

Heart + respiratory is affected by what levels of the SNS

25
What does the SNS have on bronchioles
Bronchodilation
26
What level of SNS affects micturition (pee)
T11 - L2
27
What does the SNS have on the bladder
Prevents voiding = No wee
28
What level of PNS affects the bladder? What does it do?
S2 - S4 Induces voiding = pee
29
What nerve is responsible for somatic voluntary contraction of the external urethral sphincter
Pudendal nerve
30
What nerve is not acquired in infants that is responsible for micturition
Pudendal nerve
31
What muscle has stretch receptors in the bladder
Detrusor muscle
32
What level of the SNS affects rectum emptying? What does it do to the rectum
L1 - L2 Prevents rectum emptying
33
Somatic voluntary contraction of the rectum is done via what nerve?
Pudendal nerve
34
as a summary, cerebrum is responsible for the ANS of ...
Emotional responses
35
as a summary, the hypothalamus is responsible for the ANS of ....
Overall control + regulation
36
as a summary, the brainstem centres is responsible for the ANS of ...
Cardiovascular + respiratory + swallowing
37
as a summary, the spinal cord centres is responsible for the ANS of ...
Urination / defecation / erection / ejaculation
38
What structure connects the hypothalmus / mamilliary bodies --> hippocampus
Fornix
39
Function of the mamilliary bodies
Recollective memory
40
What are major components of the basal nuclei / ganglia (3) What are the other 2 components
Caudate Nucleus // Putamen // Globus Pallidus Substantia Nigra // Subthalamic Nucleus
41
Major commisure of the brain
Corpus Callosum
42
Which component of the ventricular system is found a the diencephalon?
3rd ventricle
43
Which component of the ventricular system is found a the Midbrain
Cerebral Aquaduct
44
Which component of the ventricular system is found a the Pons
4th ventricle
45
At which points do the ventricular system communicate with the subarachnoid space? (2 foramen)
foramen of Magendie // foramina of Luschka
46
Foramina of Monro connects what
Lateral ventricles -> 3rd ventricle | *Interventricular foramina
47
Foramina of Luschka connect what?
4th ventricle to subarachnoid space
48
Cerebral aquaduct connect what?
3rd to 4th ventricle

yr2 Control + Movement (24 decks)

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