S.A. PNS & ANS Flashcards

(63 cards)

1
Q

what makes up the PNS?

A

cranial & spinal nerves (and their ganglia)

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2
Q

what are ganglia?

A

groups of neuron cell bodies

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3
Q

are peripheral nerves mostly ,myelinated or unmyelinated?

A

myelinated

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4
Q

what is a nerve fiber?

A

a single axon in a peripheral nerve

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5
Q

where are unipolar cells found?

A

posterior root ganglion

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6
Q

where are bipolar cells found?

A

retina & sensory ganglia of cochlear & vestibular nerves

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7
Q

what do schwann cells make?

A

myelin (nodes of ranvier)

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8
Q

Lesser occiput of cervical plexus?

A

C2, C3- sensory, posterolateral neck

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9
Q

Greater auricular cervical plexus?

A

C2, C3- sensory: ear & parotid gland

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10
Q

Transverse cervical of cervical plexus?

A

C2, C3- sensory: ant. & lat neck

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11
Q

Supraclavicular (ant. middle, post.) of cervical plexus?

A

C3,C4- sensory: shoulder & ant chest

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12
Q

Ansa cervaclis (deep) cervical plexus?

A

C1-C4; Motor: geniohyoid & infrAHYOID MUSCLES OF NECK

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13
Q

Segmental branches of cervial plexus?

A

C1-C5; motor: neck & scalenes, levator, trapezius, SCM

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14
Q

Phrenic of cervical plexus?

A

C3-C5; motor: diaphragm

C3, C4, C5 keep the diaphragm alive

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15
Q

Femoral N of lumbar plexus?

A

L2-L4; sensory: thigh, leg, foot, hip, knee joint

Motor: ant thigh, psoas, pectineus, iliacus

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16
Q

Obturator N. of lumbar plexus?

A

L2-L4
Sensory: medial thigh & hip joint
Motor: adductors, gracilis & obturator externus

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17
Q

Lat. femoral cut. of lumbar plexus?

A

L2, L3

sensory: lat thigh, branches to peritoneum

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18
Q

Iliohypogastric N of lumbar plexus?

A

L1; sensory: lower abdomen, lower back & hip, anterolateral abdominal wall & pubic region

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19
Q

Ilioinguinal N. of lumbar plexus?

A

L1; Sensory: external genitalia, thigh & abdominals

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20
Q

Genitofemoral N. of lumbar plexus?

A

L1,L2; Sensory: scrotum, labia, thigh & cremsater

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21
Q

Sciatic N of sacral plexus?

A

L4-S3; Motor: tibial & common peroneal

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22
Q

Tibial N. of sacral plexus

A

L4-S3
sensory: post leg & foot
Motor: all muscles back of thigh, leg & foot

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23
Q

Common peroneal (fibular) N. of sacral plexus?

A

L4-S2
sensory: ant leg & dorsum of foot
Motor: peroneals, tibialis ant., extension of toe

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24
Q

Superficial peroneal (fibular) N. of sacral plexus?

A

L4-S2; Motor: lateral comp. of leg

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25
Deep peroneal N. of sacral plexus?
L4-S2; motor: ant. comp.of leg
26
Superior gluteal N. of sacral plexus?
L4,L5,S1; motor: gluteus minimus & medius, & TFL
27
Inferior Gluteal N. of sacral plexus?
L5-S2; Motor: gluteus maximus
28
Pudendal N. of sacral plexus?
S2-S4 Sensory: muscles of perineum Motor: external anal sphincter
29
how are the cords of the brachial plexus named?
according to the axillary artery
30
whats the order of the brachial plexus?
``` roots trunks divisions cords branches "rugby teams drink cold beer" ```
31
what levels make up the roots of brachial plexus?
C5-T1
32
Rhomboids are supplied by?
Dorsal scapular nerve-C5
33
Suprascapular N.?
C5,C6- shoulder joint; infraspinatus, supraspinatus
34
Long thoracic nerve
C5,C6,C7; supplies serratus anterior
35
subclavius supplied by?
n. to the subclavius- C5
36
lateral cord is made up of?
C5-C7
37
lateral pectoral N?
C5-C7 sometimes C8; supplies pec. major
38
musculocutaneous N.?
C5,C6; supplies: coracobrachialis, bicep brachii, brachialis
39
Median N.?
C6-C8,T1- sometimes C5
40
medial brachail cut. N.?
T1- sensory to prox 1/2 of arm
41
medial antebrachial cut. N.?
C8, T1- sensory to elbow and medial aspect of forearm
42
Ulnar N.?
C8, T1, sometimes C7
43
Medial cord made up of?
C8, T1
44
Posterior cord made up of?
C5-T1
45
superior subscapular?
C5,C6; supplies subscapularis
46
inferior subscapularis n.?
C5,C6- supplies subscapularis & teres minor
47
Axillary N.?
C5,C6- supplies deltoid, teres minor; shoulder joint
48
Radial N.?
c6-T1, sometimes C5
49
CN I name? path? fxn? nuclei & ganglion?
Olfactory cribriform plate smell does NOT synapse- thalamus
50
CN II name? path? fxn?
optic optic canal vision
51
CN III name? path? fxn? nuclei?
oculomotor superior orbital fissure (SOF) Motor- eye muscles except lat. rectus & sup. oblique edinger-westphal
52
CN IV name? path? fxn?
trochlear superior orbital fissure (SOF) motor- superior oblique smallest CN
53
CN V name? path? fxn? nuclei/ganglion?
Trigeminal V1- opthalmic; V2- maxillary; V3- mandibular V1-SOF; V2- foramen rotundum; V3- Foramen ovale Sensory- face & tongue Motor- mastication (tic douloureux) trigeminal ganglion "trigeminal neuralgia" Largest CN
54
CN VI name? path? fxn?
Abducens SOF motor- lateral rectus
55
CN VII name? path? fxn? nuclei/ganglion?
``` facial internal auditory meatus, exits thru the styloid mastoid sensory-ant 2/3 taste motor- facial expression superior salvatory "bells palsy" ```
56
CN VIII name? path? fxn? nuclei/ganglion?
vestibular- cochlear internal auditory meatus sensory- balance & hearing vestibular ganglion (of scarpa)
57
CN IX name? path? fxn? nuclei?
``` glossopharyngeal jugular foramen sensory- post 1/3 taste motor- stylopharyngeus- secretion of parotid gland nucleus ambiguus (inf. salvatory) ```
58
CN X name? path? fxn? nuclei?
``` Vagus jugular foramen motor pharynx, larynx sensory- bitter taste epiglottis, ext. auditory meatus parasym. dorsal motor nucleus ```
59
CN XI name? path? fxn? nuclei?
accessory jugular foramen motor SCM & trapezius Nucleus ambiguus
60
CN XII name? path? fxn? nuclei?
hypoglossal hypoglossal canal motor- tongue hypoglssal nuclei
61
ANS innervates?
involuntary structures such as heart, smooth muscle, glands
62
Sympathetic Axons include? Short? Long?
T1-L1/L2 Short: PREganglionic; NT-ACH Long: POSTganglionic; NT-EPI/NE
63
Parasympathetic axons include? Short? Long?
CN III,VII, IX,X; sacral S2-S4 Long: PREganglionic; NT-ACH Short: POSTganglionic; NT-ACH