Gross Anatomy 2 > Final Exam: Spinal Cord > Flashcards

Final Exam: Spinal Cord Flashcards

(44 cards)

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1
Q

The major pathway of communication b/t the brain and periphery

A

Spinal cord

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2
Q

What are the 3 functions of the Spinal cord?

A
  1. Relay somatic sensory input and somatic motor output
  2. Relay visceral sensory input and visceral motor output
  3. reflexive control of somatic and visceral tissues
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3
Q

Signs of Atrophy of m. and lack of reflex could be cause by damage to the ______, not the SC.

A

Neuromuscular junction

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4
Q

What is the space running dorsal to the spinal cord cord?

A

Dorsal median sulcus

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5
Q

What is the space ventral to the spinal cord called

A

ventral median fissure

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6
Q

What are the 3 br. of the spinal n.?

A
  1. ventral Br.
  2. Dorsal Br.
  3. meningeal br.
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7
Q

Where does the first pair of cervical spinal nerves emerge?

A

lateral vertebral foramina of the atlas

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8
Q

After the first pair, the remaining CSNs emerge cranial/caudal to their corresponding cervical vertbrae

A

Cranial

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9
Q

Where would CSN 8 emerge?

A

caudal to C7

Cranial to C8

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10
Q

Which br. of the Sc has the ramus communicans?

A

ventral

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11
Q

The thoracic spinal nerves and lumbar spinal nerves will emerge cranial/caudal to their corresponding vertebrae

A

Caudal

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12
Q

The first two sacral spinal nerves emerghe through the _______.

A

sacral foramina

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13
Q

Where does the third sacral spinal nerve in the dog emerge?

A

b/t the sacrum and first caudal vert/

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14
Q

Terminal tapering of the SC

A

conus medullaris

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15
Q

Where should you aim your needle when doing an epidural?

A

caudal to the conus medullaris to avoid SC

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16
Q

Lumbosacral Stenosis causing impingement on the cauda equine in this area

A

Cauda equina syndrome

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17
Q

What are the 2 subdivisions of spinal cord grey matter>

A
  1. afferent region

2. efferent regions

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18
Q

What are the 2 parts of the afferent region of the SC gray matter?

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A
  1. somatic afferent

2. Visceral afferent

19
Q

What are the 2 parts of the efferent region of the SC grey matter?

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A
  1. visceral efferent

2. somatic efferent

20
Q

regions of white matter within the SC are referenced as

21
Q

What are the 3 funiculi?

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A
  1. dorsal
  2. lateral
  3. ventral
22
Q

What are the 2 tracts of the dorsal funiculus?

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A
  1. fasciculus gracilis

2. fasiciculus cuneatus

23
Q

Tracts that transport sensory info. from SC to brain

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A

Ascending tracts

24
Q

Tracts that transport commands from brain to SC

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A

Descending tracts

25
How do you name ascending spinal tracts?
spino- as prefix
26
How do you name descending Tracts?
-spinal as suffix
27
Which tracts are generally located in the ventral and lateral funiculi?
descending tracts
28
Which tracts are generally located in the dorsal and lateral funiculi?
ascending tracts
29
point for point correspondence of a specific body part to a specific region of the CNS
Somatotopy
30
The ability to sense stimuli in relation to position, motion, and equilibrium
Proprioception
31
What are the 6 general regions of the SC
1. Cranial cervical 2. Cervicothoracic 3. thoracolumbar 4. Lumbosacral 5. Sacral 6. Caudal
32
Region of SC that innervates axial m. and skin of Cranial cervical region
Cranial cervical region
33
Region of SC that supplies Brachial plexus
Cervicothroacic region
34
Region of Sc innervates thoracic limb m. and skin
Cervicothoracic
35
region of SC that gives sympathetic innervation to the head/eye
cervicothoracic
36
Region of SC that innervates regional m. and sking
Thoracolumbar
37
Region of SC that contains preganglionic sympathetic neurons
Thoracolumbar
38
Region of SC where lumbar intumescence occurs
lumbosacral
39
Region of SC that contains lumbosacral plexus
lumbosacral
40
Region of SC that supplies bladder and perineum
Lumbosacral
41
Region of SC that innervates the perineum and external anal sphincter
Sacral region
42
Region of Sc that is PSNS innervation to viscera of pelvis and bladder
Sacral region
43
Axons from __ to __ contribute to sciatic n.
S1-S2
44
Region of SC that innervates m and skin of the tail
caudal region
Gross Anatomy 2
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