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NBS REVIEW > Spinal Anatomy Tracts (PNS) > Flashcards

Spinal Anatomy Tracts (PNS) Flashcards

0
Q

In between the myelin there are nodes called what

A

Nodes of Ranvier

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1
Q

The Pns is myelinated by what types of cells

A

Schwann cells

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2
Q

The PNS consists of what

A

CN and Spinal Nerves (including their ganglia)

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3
Q

PNS ganglia are groups of what

A

Of neuron cell bodies

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4
Q

Peripheral nerves or just (“Nerve”) are mostly what type of axons

A

myelinated axons

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5
Q

what is a nerve fiber of the Pns

A

single axon is a peripheral nerve

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6
Q

where are unipolar cells found in the pns

A

posterior rood ganglion

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7
Q

where are bipolar cells found in the pns

A

in retina and sensory ganglion of cochlear and vestibular nerves

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8
Q

are spinal roods the same as dermatomes

A

the are similar but they are NOT the same

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9
Q

What are the cutaneous (superficial) branches of the cervical plexus and their nerve root(s)

A 
Lesser Occipital (C2,3)
Greater Auricular (C2,3)
Transverse cervical (c2,3)
Supraclavicular (ant, mid and post) (C2,3)
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10
Q

What is the function of the Lesser occipital nerve

A

Sensory along the posterolateral neck

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11
Q

what is the function of the greater auricular nerve

A

sensory of the ear and parotid glad

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12
Q

what is the function of the transverse cervical nerve

A

sensory of the anterior and lateral neck

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13
Q

what is the function of the anterior, middle and cervical nerve

A

sensory of the shoulder and anterior chest

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14
Q

what are the motor (deep) branches of the cervical plexus and their roots

A 
Ansa cervicalis (sup and inferior roots) (C1-4)
Segmental branches (C1-5)
phrenic (C3,4,5)
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15
Q

What is the function of the ansa cervicalis

A

Motor to the geniohyoid and infrahyoid muscles of the neck

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16
Q

what is the function of the segmental branches of the cervical plexus

A

motor to the neck and scalenes, levator, trapezium and SCM

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17
Q

what is the motor function of the phrenic nerve

A

C3, 4 and 5 keel the diaphragm alive

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18
Q

what are the nerves of the lumbar plexus

A 
Femoral (L2-4)
Obturator (L2-4)
Lateral femoral cutaneous (Lat fem cut) (L2,3)
iliohypogastic (L1)
ilioinguinal (L1)
genitofemoral (L1-2)
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19
Q

what is the function of the femoral nerve

A

Sensory to thigh, leg, foot, hip, knee joints

Motor to anterior thigh, psoas, pectineus and iliacus

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20
Q

what is the function of the obturator nerve

A

sensory to medial thigh and hip joint

motor to adductors, gracilis and obturator externus

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21
Q

what is the function of the Lateral femoral cutaneous nerve of the lumbar plexus

A

Sensory to the lateral thigh, branches to the peritoneum

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22
Q

what is the function of the iliohypogastic nerve

A

Sensory to the lower abdomen, lower back and hip, anterolateral abdominal wall and pubic region

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23
Q

what is the function of the ilioinguinal nerve

A

sensory to the external genitalia thigh and abdominals

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24
Q

what is the function of the genitofemoral nerve

A

sensory to the the scrotum, labia, thigh and cremasterics

25
Q

What are the branches of the sacral plexus and their roots

A 
Sciatic nerve (L4,5 & S1-2)
Tibial (L4-S3)
Common Peroneal (Fibular) (L4-S2)
Superficial peroneal (fibular) (L4-S2)
Deep peroneal (L4-S2) 
Superior Gluteal (L4, L5, S1)
Inferior Gluteal (L5-S2)
Pudendal (S2-S4)
26
Q

what is the function of the sciatic nerve

A

motor to the Tibial and common peroneal nerve

27
Q

What is the function of the tibial nerve

A

Sensory to the posterior leg and foot

motor to all muscles back of the thigh, leg and foot

28
Q

what is the function of the common peroneal nerve

A

sensory to anterior leg and dorsum of foot

motor to peroneals, tibialis anterior, extension of toes

29
Q

what is the function of the superficial peroneal nerve

A

motor to the lateral compartment of the leg

30
Q

what is the function of the deep peroneal nerve

A

motor to the anterior compartment of the leg

31
Q

what is the function of the superior gluteal nerve

A

motor to the gluteus minimus, medius and the Tensor Fascia Lata

32
Q

what is the function of the inferior gluteal nerve

A

motor to the gluteus maximus

33
Q

what is the function of the Pudendal nerve

A

Sensory to the perineum

motor to the external anal sphincter

34
Q

What is the brachial plexus named according to

A

its position to the axillary artery *****

35
Q

What are the divisions of the brachial plexus starting at the nerve roots

A

Roots, Trunks, Divisions, cords and branches

36
Q

what are the roots of the brachial plexus

A

C5,6,7,8 and T1

37
Q

what are the trunks of the BP

A

upper middle lower

38
Q

what are the chords of the brachial plexus

A

Lateral, posterior and medial

39
Q

what are the branches of the BP

A 
Musculocutaneous
axillary
radial
median
ulnar
40
Q

If you have a patient that is having tingling and numbness in their fourth and fifth digits which branch is involved

41
Q

you have a patient that is having difficulty with extension in the distal upper extremety, which cord is involved

42
Q

How do you remember the function of the CN

A

Some Say Marry Money But My Big Brother Says Big Boobs Matter More
(Start with S it is sensory, M is for Motor, B is for Both)

43
Q

How do you remember the Foramina that the CN exit

A 
Come On SOFia SOFia SOFia ROll OVer SOFia I AM in A Mood (for) JUGs JUGs JUGs Hello
Cribriform plate (I), Optic canal (II), Superior Orbital Fissure (III), Superior Orbital Fissure (IV), Superior Orbital Fissure (V1), Foramen Rotundum (V2), foramen Ovale (V3), Superior orbital fissure (VI), Internal Auditory Meatus ((VII), Internal Auditory Meatus (VIII), Jugular foramen (IX), Jugular foramen (X), Jugular Foramen (XI), Hypoglossal canal (XII)
44
Q

Which CN does not synapse in the Thalamus

45
Q

what is the Nuclei for CN III

A

Edinger-Westphal

46
Q

which CN is the smallest

47
Q

which CN is the largest

A

Trigeminal (CNV)

48
Q

what is the nuclei and or ganglion of CN V

A

Gasserian semilunar or trigeminal ganglion

49
Q

what is a condition that can occur to CN V

A

Trigeminal neuralgia

50
Q

What is the nuclei to the Facial Nerve

A

Superior Salvatory

51
Q

what is a condition that can happen to CN VII

A

Bell’s palsy

52
Q

what is the ganglia for the vestibularcochlear nerve

A

Vestibular ganglion (of scarpa)

53
Q

what is the Nuclei for CN IX & CN XI

A

Nucleus ambiguous

54
Q

what is the nuclei of the vagus nerve

A

Parasympathetic dorsal motor nuclei

55
Q

what is the Nuclei for the Hypoglossal nerve

A

hypoglossal nuclei

56
Q

what CN controls taste

A

CN VII anterior 2/3

CN IX Posterior 1/3

57
Q

Parasympathetics travel through which CN’s

A

III, VII, IX, and X (90% of body)

58
Q

the Middle Meningeal Artery Exits through what foramen

A

Foramen Spinosum

59
Q

what exits the Foramen Lacerum

A

Internal Carotid Artery (Temportal and Sphenoid)

60
Q

Injury to the PTERION (Junction of sphenoid, temporal, frontal and parietal bones) can cause what

A

damage to the middle meningeal artery and possible death

61
Q

What else could you call the foramen lacerum

A

a cartilaginous hole not a boney hole

NBS REVIEW (8 decks)

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