Lecture 12 - Peripheral And Autonomic Nervous Systems

Front 1

How many cranial Nerves?

Back 1

12

Front 2

Name the __ cranial nerves

Back 2

12
Olfactory 1
optic 2
Oculomotor 3
Trochlear 4
Trigminal 5
Abducens 6
Facial 7
Vestibulocochlear 8
Glossopharyngeal 9
Vagus 10
Accessory 11
Hypoglossal 12

Front 3

Which cranial nerves have Only sensory function

Back 3

Olfactory 1
Optic 2
Vestibulocochlear 8

small ships make money but my brother says big boats make more

Front 4

which cranial nerves only have motor function

Back 4

Oculomotor 3
Trochlear 4
abducens 6
accessory 11
Hypoglossal 12

Front 5

does olfactory nerve 1 have sensor, motor function or both? what is its function

Back 5

sensory
Smell

Front 6

does optic nerve 2 have sensory, motor function or both? what is its function

Back 6

sensory
sight

Front 7

does oculomotor nerve 3 have sensory, motor function of both? what is its function

Back 7

motor
Ciliary muscle, pupil constriction, extrinsic eye muscles (not superior oblique or lateral rectus)

Front 8

does trochlear nerve 4 have sensory, motor function or both? what is it function

Back 8

motor
superior oblique

Front 9

does trigeminal nerve 5 have sensory, motor function or both? what is it's function?

Back 9

both
sensory - face teeth and tongue
motor - mastication

Front 10

does abducens nerve 6 have sensory, motor function or both? what is it's funciton

Back 10

motor
lateral rectus

Front 11

does facial nerve 7 have sensory, motor function or both? what is its function

Back 11

both
sensory - taste anterior 2/3 of tongue
motor - facial muscles, saliva and tears

Front 12

does vestibulocochlear nerve 8 have sensory, motor function both? what is its function

Back 12

sensory
hearing and balance

Front 13

does glossopharyngeal nerve 9 have sensory, motor function or both? what is its function

Back 13

both
sensory - taste( post 1/3 of tongue)
motor - swallowing and saliva

Front 14

does vagus nerve 10 have sensory, motor function or both? what is it;s function

Back 14

both
sensory - visceral sensation ( thoracic and abdominal cavities
motor - swallowing and 70% of parasympathetic

Front 15

does accessory nerve 11 have sensory, motor function or both? what is its function

Back 15

motor
sternocleodomastoid, trapezius

Front 16

does hypoglossal nerve 12 have sensory, motor function or both? what is it function

Back 16

motor
tongue muscles

Front 17

how many pairs of spinal nerves?

Back 17

31

Front 18

where are the sensory neuron cell bodies and axons found?

Back 18

cell bodies are in posterior root ganglion
axons are are from ganglion into posterior horn

Front 19

where are motor neuron cell bodies and axons found>

Back 19

cell bodies are in the anterior horn
axons are within the anterior root

Front 20

where are the somatic and visceral sensory nuclei found

Back 20

Front 21

where are the autonomic and somatic motor nuclei found

Back 21

Front 22

what is a dermatome

Back 22

specific segment of skin supplied by a single pair of spinal nerves

Front 23

what is shingles

Back 23

-During initial infection, the chickenpox virus sometimes leaves the skin and invades the posterior root ganglia
-Virus remains latent until adulthood
-Rash of scaly, painful blisters
--Usually confined to one or a few adjacent dermatomes

Front 24

what is a nerve plexus?

Back 24

-A network of interweaving spinal nerves
-Split into multiple “named” nerves that innervate various body structures

Front 25

what are the ___ principal plexuses

Back 25

4
Cervical
Brachial
Lumbar
Sacral

Front 26

the cervical plexus stems from spinal nerves ___-_____

Back 26

c1-c5

Front 27

what does the cervical plexus innervate?

Back 27

Innervates anterior neck and parts of head and shoulders

Front 28

which spinal nerves does the phrenic nerve stem from

Back 28

C3-5
C345 keep diaphragm alive

Front 29

the brachial plexus stems from spinal nerves _-____

Back 29

c5-t1

Front 30

what does the brachial plexus innervate

Back 30

pectoral girdle and upper limbs

Front 31

the brachial plexus ends up being which __ nerves

Back 31

5
Musculocutaneous - anterior arm
radial - both post compartments
median - ant forearm and thumb
ulnar- median forearm
axillary - deltoid and teres minor

Front 32

the lumbar plexus stems from spinal nerves ___-___

Back 32

l1-l5

Front 33

the lumbar plexus innervates the ...

Back 33

lower limb

Front 34

L2-L4 the lumbar plexus ends up being is the ______ which innervates_____

Back 34

femoral nerve
anterior thigh muscles

Front 35

the sacral plexus stems from spinal nerves __-___

Back 35

L4-S4

Front 36

the sacral plexus innervates the .....

Back 36

lower limb

Front 37

the main nerve of the sacral plexus ....

Back 37

sciatic

Front 38

sciatic nerve divides into .....

Back 38

common fibular and tibial nerves

Front 39

where is the most common spinal nerve injury

Back 39

L4-L5

Front 40

dorsiflexion and inversion are innervated by which spinal nerves

Back 40

L4-L5

Front 41

what are the steps of the reflex arc

Back 41

1 Receptor
2 Sensory (afferent) neuron
3 Interneurons
4 Motor (efferent) neuron
5 Effector

Front 42

what are the characteristics of a monosynaptic reflex

Back 42

The simplest of all reflexes
No interneurons
The stretch reflex is an example (patellar or knee-jerk reflex)

Front 43

what are the characteristics of a polysynaptic reflex

Back 43

More complex neural pathway
More than one synapse involving interneurons within the reflex arc
The withdrawal reflex is an example

Front 44

which system has two motor neurons somatic or autonomic

Back 44

autonomic (synapse)in

Front 45

which system has one sensory neuron somatic or autonomic

Back 45

both

Front 46

in the sympathetic division of the autonomic nervous system is the pre-ganglionic neuron short or long

Back 46

short

Front 47

in the sympathetic division of the autonomic nervous system is the post0ganglionic neuron short or long

Back 47

long

Front 48

in the sympathetic division of the autonomic nervous system is the pre-ganglionic neuron myelinated>

Back 48

yes

Front 49

in the sympathetic division of the autonomic nervous system is the post-ganglionic neuron myelinated?

Back 49

no

Front 50

are there a lot of branches of preganglionic axons in the sympathetic division of autonomic system

Back 50

yes

Front 51

are there a lot of branches or postganglionic axons in the sympathetic division of the autonomic system

Back 51

no

Front 52

sympathetic division chart

Back 52

Front 53

where does the sympathetic division originate from

Back 53

T1-L2

Front 54

what are the functions of the sympathetic division of the autonomic system

Back 54

-Fight or Flight”
-Activated in emergency situations and when excited or stressed.

Front 55

t/f in the parasympathetic division the preganglionic neuron is myelinated and the post-ganglionic neuron is not

Back 55

t

Front 56

t/f in the parasympathetic division the pre-ganglionic neuron is short and the post-ganglionic neuron is long

Back 56

f
opposite

Front 57

t/f in the parasympathetic division there are a extensive branches of both the pre and pos-ganglionic neuron

Back 57

f
both have few

Front 58

parasympathetic chart

Back 58

Front 59

where does the parasympathetic division originate

Back 59

Brainstem (CN III, VII, IX and X)
Sacral spinal cord

Front 60

what are the functions of the parasympathetic division

Back 60

Rest and Digest”
Conserves energy and replenishes energy stores

Front 61

what are the affects of the parasympathetic and sympathetic divisions on the pupils

Back 61

sympathetic - pupil dilation
parasympatheitic - pupil constriction

Front 62

what are the affects of the parasympathetic and sympathetic divisions on the digestive system

Back 62

sympathetic - reduced activity
parasympathetic - increased activity

Front 63

what are the affects of the parasympathetic and sympathetic division on the heart

Back 63

sympathetic - increased heart rate
parasympathetic - decreased heart rate

Front 64

t/f some blood vessels are affected by the sympathetic division but not the parasympathetic

Back 64

t