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Neurobiology I > Unit 2- Spinal Cord Part 1 > Flashcards

Unit 2- Spinal Cord Part 1 Flashcards

1
Q

Which lamina of the spinal cord gray matter contains the parasympathetic motor neurons?

A

Lamina IX in Lamina VII

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2
Q

The spinal cord starts where?

A

Foramen magnum, end of medulla oblongata

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3
Q

With the spinal cord there is a mis-match of the spinal cord and _______ _______ regions

A

vertebral column

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4
Q

The spinal cord ends at ____-______

A

T12-L2

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5
Q

The Conus Medullaris:

______ ends at the _______ _________

A

L1
cauda equina

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6
Q

The _______ ________ is known as the “horse tail” and invloves the central processes, CNS and is located ____-_______

Sends and receives messages between the ______ limbs and ______ organs

A

cauda equina
L1,L5
lower
pelvis

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7
Q

The cervical enlargement involves the ______ and _________ plexus

A

cervical
brachial

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8
Q

Cervical Plexus: ?
Brachial Plexus: ?

A

anterior neck

upper limb

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9
Q

The lumbosacral enlargement involves the _______ and __________ plexus

A

lumbar
sacral

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10
Q

Lumbar Plexus? (sensory)

Sacral Plexus: ?

A

Ant/med thigh, leg, and foot

other parts of lower limb (includes gluteal region)

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11
Q

The vertebral foramen houses our ?

A

spinal cord

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12
Q

The intervertebral foramen houses our ?

A

spinal nerves

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13
Q

Spinal canal is made up of many _______ ________ and the ______ canal

A

vertebral foramina
sacral

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14
Q

Meninges

_______ mater is the tough outer layer

A

Dura

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15
Q

Meninges
Dura Mater

________ ________ __________
composed of both pia and dura mater

A

Filum Terminale Externum

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16
Q

Meninges
________ mater is web-like, middle layer, avascular

A

Arachnoid

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17
Q

Meninges

_______ mater: inner layer and vascular

A

pia

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18
Q

Meninges
Pia Mater

________ ligament: triangle-shaped extensions of the pia mater and attach to the spinal cord and dura mater

A

Denticulate

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19
Q

Meninges
_________ ________ _______: anchor the spinal cord to the coccyx, prevents excessive movement and provides stability

A

Filum terminale internum

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20
Q

_________ space: contains fat/blood vessels, between the dura mater and bony framework of the spinal column

A

Epidural

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21
Q

__________ space: location of CSF, between the pia mater and arachnoid mater

A

Subarachnoid

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22
Q

___________ space: potential space between the dura mater and arachnoid mater

A

Subdural space

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23
Q

The verterbral artery runs through which foramen?

A

C6

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24
Q

Blood Supply of Spinal Cord?
1 _______ ______ artery
2 _______ ________ artery

A

anterior spinal
posterior spinal

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25
Q

Both arteries of the spinal cord get ________ support

A

segmental

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26
Q

The Anterior Spinal Artery: supplies ______ of the spinal cord

Central branches formed by the _______ arteries

__________ segment: pass to the R and L to serve central regions of the spinal cord

A

2/3
vertebral
Alternating

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27
Q

Label this

A
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28
Q

The _____ matter: conducts, processes, and sends nerve signals up and down the spinal cord (myelinated axons)

A

White

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29
Q

_______ _______ _______: ascending tracts cross through here, transmits info. from or to the contralateral side

A

Anterior White Commisure

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30
Q

The _____/________ horn: for sensory information

A

dorsal
posterior

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31
Q

The ______/______ horn: innervates skeletal mm. to cause movement

A

ventral
anterior

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32
Q

The ______ matter: controls movement, emotion, and memory (cell bodies/dendrites)

A

gray

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33
Q

Which 3 funiculi are a part of the spinal cord: white matter?

A

Posterior/dorsal funiculus
Lateral faniculus
Anterior/ventral funiculus

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34
Q

The posterior/dorsal funiculus transmits sensory info related to _______ touch, ________, and _________ from the periphery to the brain (ascending pathway)

A

fine
vibration
proprioception

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35
Q

The lateral funiculus is involved with ______ _______ activity, controlling ________, and relaying _________ info

A

spinal cord
movement
sensory

36
Q

The anterior/ventral faniculus carries sensory (ascending) info about ______, _______, and some ______ info (descending)

A

pain
temperature
motor

37
Q

Label this

A
38
Q

Proximal: more ______ matter

Distal: more ______ matter

A

white
gray

39
Q

White matter involved with fasciculus _______, fasciculus _______ and _______ tract

A

cuneatus
gracilis
Lissauer’s

40
Q

Fasciculus cuneatus: ______ T6 and more ______
(1st order neurons)

A

above
lateral

41
Q

Faciculus gracilis:
_______ T6 and more ________

A

below
medial

42
Q

FG is part of the DCML and involved with?

A

fine touch
proprioception
vibration
2-point discrimination

43
Q

With Lissauer’s tract, it involves ______, _______, and ____touch (sensory) and can either ascend or descend a few ______ levels

A

pain
temperature
light
vertebral

44
Q

Gray matter involved with _________ _______ nucleus and ________ horn

A

Substansia Gelatonisa
Interomediolateral

45
Q

The SG processes _____, ______, and ________

A

pain
temperature
touch

46
Q

The SG is located in Lamina ____

A

II

47
Q

Which nucleus is important for controlling our pain in the gate cotrol theory?

A

SG

48
Q

The IL has _________ innervation

____-_____ levels

between _____ and ______ horns

A

sympathetic
T1-L2
dorsal, ventral

49
Q

Identify all parts

A
50
Q

Label

A
51
Q

Label

A
52
Q

Gray Matter: 10 Rexed Laminae
I-IX: _______ to _______ exception of Lamina X

A

dorsal
ventral

53
Q

Why is there an exception for lamina X being dorsal to ventral?

A

bc it is located around the central canal

54
Q

What are the 2 main somatic motor nuclei?

A

Accesory Nucleus
Phrenic Nucleus

55
Q

Accesory Nucleus
Level: ?
Lamina: ?
Function: ?

A

C1-C5
IX
motor neurons–> SCM and trapezius

56
Q

Phrenic Nucleus
Level: ?
Lamina: ?
Function: ?

A

C3-C5
IX
Motor neurons–> diaphragm

57
Q

What are 2 main visceral motor nuclei?

A

Intermediolateral column
Sacral parasympathetic nucleus

58
Q

Intermediolateral column
Level: ?
Lamina: ?
Function: ?

A

T1-L2
VII
preganglionic sympathetic neurons

59
Q

Sacral parasympathetic nucleus
Level: ?
Lamina: ?
Function: ?

A

S2-S4
VII
preganglionic parasympathetic neurons –> pelvic viscera

60
Q

What are the 4 main Sensory nuclei?

A

Marginal Zone
Substantia Gelatinosa
Body of Posterior Horn
Clarke’s Nucleus

61
Q

Marginal Zone
Level: ?
Lamina: ?
Function: ?

A

ALL
I
some spinothalamic tract cells

62
Q

Substantia Gelatinosa
Level: ?
Lamina: ?
Function: ?

A

ALL
II
modulate transmission of point temperature information

63
Q

Body of Posterior Horn
Level: ?
Lamina: ?
Function: ?

A

ALL
III-VI
sensory processing

64
Q

Clarke’s Nucleus (2nd neuron located)
Level: ?
Lamina: ?
Function: ?

A

T1-L2
VII
posterior spinocerebellar tract cells

65
Q

From the spinal cord to medulla

When the Lissauer’s Tract asccends it chanes to the _______ _________ tract

A

spinal trigeminal

66
Q

From the spinal cord to medulla

The Lissauer’s tract is part of the ______ _______ horn

A

posterior dorsal

67
Q

From the spinal cord to medulla

The spinal trigeminal nucleus descends to the _____ level

A

C2

68
Q

From the spinal cord to medulla

Transformation of laminae ___-____ to spinal trigeminal nucleus and provides sensation to the ____ and _____

A

II-IV

head, face

69
Q

Which structures from the ligaments to improve the stability of the spinal cord in the spinal canal?

A

Pia mater- DL/FTI
Dura mater- FTE

70
Q

Functional Components of the Spinal Cord

All spinal levels: ?

A

somatic motor/efferent (Sm, SE)
somatic sensory/afferent (Ss, SA) except C1

71
Q

Functional Components of the Spinal Cord

All spinal levels:
Somatic motor/efferent (Sm, SE)

Lamina ____ in Lamina _______

Somatic sensory/afferent (Ss, SA) except C1

Lamina ___-_____

A

IX in VIII

I-VI

72
Q

Functional Components of the Spinal Cord

Specific spinal levels: ?

A

Visceral motor/ efferent(Vm, VE)
Visceral sensory/ afferent (Vs, VA)

73
Q

Functional Components of the Spinal Cord
Visceral motor/ efferent(Vm, VE)

_____-________: sympathetic
_____-______ : parasympathetic
Lamina ____ in ________

A

T1-L2
S2-S4

IX, VII

74
Q

Functional Components of the Spinal Cord

Visceral sensory/ afferent (Vs, VA)
Lamina ___-_____

A

I-VI

75
Q

There is no big difference between which functional components of the spinal cord?

A

Ss, Vs

76
Q

Somatic Motor
________, _________
_________ sensation, _________ motor control

A

body wall, extremity
conscious, voluntary

77
Q

Visceral Motor
________ ________ (some in skin)
________ sensation and _______ motor control

Ex. heart beating

A

Internal organs
subconscious, invioluntary

78
Q

Sympathetic Motor

____-_____: spinal cord region but all spinal nerves

Sympathetic trunk: _________ ganglia

A

T1-L2
paravertebral

79
Q

Sympathetic Motor

___________ nerves: __________/________ ganglia

CN V involves: ______ glands, _______ pili, _______ vessels, ______ organs

A

Sphlanchnic
Prevertebral, preaortic
Sweat, arrestor, blood, visceral

80
Q

Sympathetic Motor

_______ ________ ________; a sympathetic ganglion (2nd neuron of sympathetic nervous system)

A

Adrenal gland medulla

81
Q

Which 4 cranial nerves are parasympathetic in the brainstem?

A

CN III
IX
X
X

82
Q

Parasympathetic Motor

Spinal parasympathetic: ______ spinal cord

________ splanchnic nerve: ____-______

A

sacral
pelvic, S2-S4

83
Q

Parasympathetic Motor

Not supply the ______ ______

A

somatic walll

84
Q

Which Rexed Laminae contains 1st cell ofthe visceral motor?

A

Lamina VII
T1-L2: sympathetic
S2-S4: parasympathetic

85
Q

How does the sympathetic motor functions distribute to all spinal nerves ?

A

Sympathetic trunk: paravertebral ganglia

Neurobiology I (13 decks)

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