S.A. PNS & ANS Flashcards Preview

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Flashcards in S.A. PNS & ANS Deck (63)
1

what makes up the PNS?

cranial & spinal nerves (and their ganglia)

2

what are ganglia?

groups of neuron cell bodies

3

are peripheral nerves mostly ,myelinated or unmyelinated?

myelinated

4

what is a nerve fiber?

a single axon in a peripheral nerve

5

where are unipolar cells found?

posterior root ganglion

6

where are bipolar cells found?

retina & sensory ganglia of cochlear & vestibular nerves

7

what do schwann cells make?

myelin (nodes of ranvier)

8

Lesser occiput of cervical plexus?

C2, C3- sensory, posterolateral neck

9

Greater auricular cervical plexus?

C2, C3- sensory: ear & parotid gland

10

Transverse cervical of cervical plexus?

C2, C3- sensory: ant. & lat neck

11

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

C3,C4- sensory: shoulder & ant chest

12

Ansa cervaclis (deep) cervical plexus?

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

13

Segmental branches of cervial plexus?

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

14

Phrenic of cervical plexus?

C3-C5; motor: diaphragm
C3, C4, C5 keep the diaphragm alive

15

Femoral N of lumbar plexus?

L2-L4; sensory: thigh, leg, foot, hip, knee joint
Motor: ant thigh, psoas, pectineus, iliacus

16

Obturator N. of lumbar plexus?

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

17

Lat. femoral cut. of lumbar plexus?

L2, L3
sensory: lat thigh, branches to peritoneum

18

Iliohypogastric N of lumbar plexus?

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

19

Ilioinguinal N. of lumbar plexus?

L1; Sensory: external genitalia, thigh & abdominals

20

Genitofemoral N. of lumbar plexus?

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

21

Sciatic N of sacral plexus?

L4-S3; Motor: tibial & common peroneal

22

Tibial N. of sacral plexus

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

23

Common peroneal (fibular) N. of sacral plexus?

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

24

Superficial peroneal (fibular) N. of sacral plexus?

L4-S2; Motor: lateral comp. of leg

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