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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
Both arteries of the spinal cord get ________ support
segmental
26
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
2/3 vertebral Alternating
27
Label this
28
The _____ matter: conducts, processes, and sends nerve signals up and down the spinal cord (myelinated axons)
White
29
_______ _______ _______: ascending tracts cross through here, transmits info. from or to the contralateral side
Anterior White Commisure
30
The _____/________ horn: for sensory information
dorsal posterior
31
The ______/______ horn: innervates skeletal mm. to cause movement
ventral anterior
32
The ______ matter: controls movement, emotion, and memory (cell bodies/dendrites)
gray
33
Which 3 funiculi are a part of the spinal cord: white matter?
Posterior/dorsal funiculus Lateral faniculus Anterior/ventral funiculus
34
The posterior/dorsal funiculus transmits sensory info related to _______ touch, ________, and _________ from the periphery to the brain (ascending pathway)
fine vibration proprioception
35
The lateral funiculus is involved with ______ _______ activity, controlling ________, and relaying _________ info
spinal cord movement sensory
36
The anterior/ventral faniculus carries sensory (ascending) info about ______, _______, and some ______ info (descending)
pain temperature motor
37
Label this
38
Proximal: more ______ matter Distal: more ______ matter
white gray
39
White matter involved with fasciculus _______, fasciculus _______ and _______ tract
cuneatus gracilis Lissauer's
40
Fasciculus cuneatus: ______ T6 and more ______ (1st order neurons)
above lateral
41
Faciculus gracilis: _______ T6 and more ________
below medial
42
FG is part of the DCML and involved with?
fine touch proprioception vibration 2-point discrimination
43
With Lissauer's tract, it involves ______, _______, and ____touch (sensory) and can either ascend or descend a few ______ levels
pain temperature light vertebral
44
Gray matter involved with _________ _______ nucleus and ________ horn
Substansia Gelatonisa Interomediolateral
45
The SG processes _____, ______, and ________
pain temperature touch
46
The SG is located in Lamina ____
II
47
Which nucleus is important for controlling our pain in the gate cotrol theory?
SG
48
The IL has _________ innervation ____-_____ levels between _____ and ______ horns
sympathetic T1-L2 dorsal, ventral
49
Identify all parts
50
Label
51
Label
52
Gray Matter: 10 Rexed Laminae I-IX: _______ to _______ exception of Lamina X
dorsal ventral
53
Why is there an exception for lamina X being dorsal to ventral?
bc it is located around the central canal
54
What are the 2 main somatic motor nuclei?
Accesory Nucleus Phrenic Nucleus
55
Accesory Nucleus Level: ? Lamina: ? Function: ?
C1-C5 IX motor neurons--> SCM and trapezius
56
Phrenic Nucleus Level: ? Lamina: ? Function: ?
C3-C5 IX Motor neurons--> diaphragm
57
What are 2 main visceral motor nuclei?
Intermediolateral column Sacral parasympathetic nucleus
58
Intermediolateral column Level: ? Lamina: ? Function: ?
T1-L2 VII preganglionic sympathetic neurons
59
Sacral parasympathetic nucleus Level: ? Lamina: ? Function: ?
S2-S4 VII preganglionic parasympathetic neurons --> pelvic viscera
60
What are the 4 main Sensory nuclei?
Marginal Zone Substantia Gelatinosa Body of Posterior Horn Clarke's Nucleus
61
Marginal Zone Level: ? Lamina: ? Function: ?
ALL I some spinothalamic tract cells
62
Substantia Gelatinosa Level: ? Lamina: ? Function: ?
ALL II modulate transmission of point temperature information
63
Body of Posterior Horn Level: ? Lamina: ? Function: ?
ALL III-VI sensory processing
64
Clarke's Nucleus (2nd neuron located) Level: ? Lamina: ? Function: ?
T1-L2 VII posterior spinocerebellar tract cells
65
From the spinal cord to medulla When the Lissauer's Tract asccends it chanes to the _______ _________ tract
spinal trigeminal
66
From the spinal cord to medulla The Lissauer's tract is part of the ______ _______ horn
posterior dorsal
67
From the spinal cord to medulla The spinal trigeminal nucleus descends to the _____ level
C2
68
From the spinal cord to medulla Transformation of laminae ___-____ to spinal trigeminal nucleus and provides sensation to the ____ and _____
II-IV head, face
69
Which structures from the ligaments to improve the stability of the spinal cord in the spinal canal?
Pia mater- DL/FTI Dura mater- FTE
70
Functional Components of the Spinal Cord All spinal levels: ?
somatic motor/efferent (Sm, SE) somatic sensory/afferent (Ss, SA) except C1
71
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 ___-_____
IX in VIII I-VI
72
Functional Components of the Spinal Cord Specific spinal levels: ?
Visceral motor/ efferent(Vm, VE) Visceral sensory/ afferent (Vs, VA)
73
Functional Components of the Spinal Cord Visceral motor/ efferent(Vm, VE) _____-________: sympathetic _____-______ : parasympathetic Lamina ____ in ________
T1-L2 S2-S4 IX, VII
74
Functional Components of the Spinal Cord Visceral sensory/ afferent (Vs, VA) Lamina ___-_____
I-VI
75
There is no big difference between which functional components of the spinal cord?
Ss, Vs
76
Somatic Motor ________, _________ _________ sensation, _________ motor control
body wall, extremity conscious, voluntary
77
Visceral Motor ________ ________ (some in skin) ________ sensation and _______ motor control Ex. heart beating
Internal organs subconscious, invioluntary
78
Sympathetic Motor ____-_____: spinal cord region but all spinal nerves Sympathetic trunk: _________ ganglia
T1-L2 paravertebral
79
Sympathetic Motor ___________ nerves: __________/________ ganglia CN V involves: ______ glands, _______ pili, _______ vessels, ______ organs
Sphlanchnic Prevertebral, preaortic Sweat, arrestor, blood, visceral
80
Sympathetic Motor _______ ________ ________; a sympathetic ganglion (2nd neuron of sympathetic nervous system)
Adrenal gland medulla
81
Which 4 cranial nerves are parasympathetic in the brainstem?
CN III IX X X
82
Parasympathetic Motor Spinal parasympathetic: ______ spinal cord ________ splanchnic nerve: ____-______
sacral pelvic, S2-S4
83
Parasympathetic Motor Not supply the ______ ______
somatic walll
84
Which Rexed Laminae contains 1st cell ofthe visceral motor?
Lamina VII T1-L2: sympathetic S2-S4: parasympathetic
85
How does the sympathetic motor functions distribute to all spinal nerves ?
Sympathetic trunk: paravertebral ganglia

Neurobiology I (13 decks)

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