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Med310A > AUTONOMIC NS > Flashcards

AUTONOMIC NS Flashcards

1
Q

Involuntary body functions =____
Voluntary body functions = _____

A

Autonomous
Somatic

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2
Q

What are the 2 divisions of the autonomic nervous system ?

A

Sympathetic
Parasympathetic

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3
Q

_______ is a dynamic balance between the autonomic branches

A

Homeostasis

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4
Q

Rest and digest : _______

A

Parasympathetic

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5
Q

Fight or flight = ____

A

Sympathetic

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6
Q

The basic structure of an autonomic pathway consists of the CNS to _______ before reaching the target tissue

A

Autonomic ganglion

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7
Q

What Autonomic control centre in the brain :
-Water balance
-Temperature
- hunger

A

Hypothalamus

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8
Q

What Autonomic control centre in the brain :
- pupillary reflex

A

Midbrain

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9
Q

What Autonomic control centre in the brain :
-Respiration
-urinary bladder

A

Pons

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10
Q

What Autonomic control centre in the brain :
-respiration
- cardiac
-vomiting
-swallowing

A

Medulla

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11
Q

What Autonomic control centre in the brain :
-visceral reflex

A

Spinal cord

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12
Q

Autonomic pathways consist of 2 neurons that synapse in an autonomic ganglion, what are these called ?

A

Preganglionic
Post ganglionic

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13
Q

At the target organ, the sympathetic nerves use _____ and the parasympathetic nerves use ____ to induce actions

A

norepinephrine
Acetylcholine

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14
Q

Sympathetic pathways originate in the ___ and ____ region of spinal cord this system provides sympathetic innervation of the entire body

A

Thoracic
Lumbar

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15
Q

_____ neurons are in spina cord segments T1-L2

A

Preganglionic

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16
Q

______fibres (white ramus) enter the ganglionic chain
______ fibres (grey ramus) join the corresponding spinal nerves to target

A

Presynaptic
Post ganglionic

17
Q

The _____ serves as postsynaptic sympathetic neurons. These neurons do not have axons to reach their targets, they release, instead, transmitters into blood which circulates entire body: the transmitters are ____(20%) and _____(80%)

A

Norepinephrine
Epinephrine

18
Q

Salivary gland and eye smooth muscles are innervated by lll, Vll and lX _____ nerves

A

Cranial

19
Q

The ______ nerve (CN X) descends and wanders through the thoracic and abdominal cavities innervating all viscera there

A

Vagus

20
Q

The ____ cord (S2-4) gives rise to parasympathetic fibres that innervate the pelvic organs

A

Sacral

21
Q

Peripheral arterioles and sweat glands are innervated by _____ nerves only

A

Sympathetic

22
Q

The _______ contains about 75% of all parasympathetic fibres.
-provides parasympathetic innervation to all coverage organs except for the pelvic organs

A

Vagus nerve

23
Q

The _____(S2-4) provides parasympathetic innervation to pelvic region

A

Sacral

24
Q

parasympathetic _____ are located either in or near target organs
Consist of __________ axons and ________ axons

A

Ganglia
Long Pre ganglionic
Short post ganglionic

25
Q

_______ division :
Origin of fibres: thoracolumbar region
Length of fibres: short pre ganglionic, long post ganglionic
Location of ganglia: close to spinal cord

A

Sympathetic

26
Q

______ division :
Origin of fibres: cranial/sacral
Length of fibres: long Preganglionic, short post ganglionic
Location of ganglia: visceral effector organs

A

Parasympathetic

27
Q

What region is the origin of fibres in sympathetic division ?

A

Thoracolumbar region

28
Q

What region is the origin of fibres in parasympathetic division ?

A

Cranial/sacral

29
Q

Describe length of fibres in sympathetic division
______ preganglionic
_____post ganglionic

A

Short
Long

30
Q

Describe length of fibres in parasympathetic division
______ preganglionic
_____post ganglionic

A

Long
Short

31
Q

What is the Location of ganglia in sympathetic division ?

A

Close to spinal cord

32
Q

What is the Location of ganglia in parasympathetic division ?

A

Visceral effector organs

33
Q

The ___ organs are under antagonistic control of the sympathetic and parasympathetic nerves

A

Visceral

34
Q

_______ receptors bind to norepinephrine and epinephrine

A

Adrenergic receptors

35
Q

______ receptors
- all effector cells stimulated by post ganglionic cholinergic fibres (parasympathetic fibres to target organs)

A

Muscarinic

36
Q

The effect of ____ at muscarinic receptors can be inhibitory or excitatory and depends on receptor subtypes of target organ

A

Acetylcholine

37
Q

Effects of _____ depends on which subclass of receptor predominates on the target organ

A

Norepinephrine

38
Q

Autonomic effectors :
___ and ___ muscles
some _____ and ____ glands
Some ______ tissue

A

Smooth and cardiac
Endocrine and exocrine
Adipose

Med310A (29 decks)

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