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BI 241 > CH 12: Spinal Cord (Final Exam) > Flashcards

CH 12: Spinal Cord (Final Exam) Flashcards

1
Q

Where is the Spinal Cord Located?

A
  • In Vertebral FORAMEN
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2
Q

Where does the Spinal Cord Begin and End?

A

Begin: FORAMEN Magnum of Occipital bone
End: Conus Medullaris

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3
Q

Where does CSF collect within the Spinal Cord (SC) ?

A

Below L3

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4
Q

The Cauda Equina is only for what roots?

A

Lumbar & Sacral

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5
Q

What structure of the SC is a bundle of spinal nerve roots from the Conus Medullaris?

A

Cauda Equina

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6
Q

The Cauda Equina is considered as ______ tissue?

A
  • Nerve
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7
Q

The Filum Terminale is considered as ____ Tissue?

A

Connective

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8
Q

What structure of the SC has the Pia mater extending to the coccyx & anchors the SC?

A

Filum Terminale

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9
Q

What are the 3 Meninges of the Brain and SC?

A
  • Dura Mater, Arachnoid Mater, & Pia Mater
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10
Q

The Pia Mater is Homologus to ___?

A

Visceral layer

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11
Q

Dura Mater is Homologous to ____?

A

Parietal Layer

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12
Q

What are the structures of the SC?

A
  • Brian & SC meninges, Epidural Space, Cerebral Spinal Fluid
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13
Q

What are the Brain & SC Meninges listed from Outside to inside

A
  • Dura Mater, Arachnoid Mater, Pia Mater
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14
Q

Where can CSF be found in the SC?

A
  • Subarachnoid space
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15
Q

What structure of the SC is between the Vertebrae & Spinal Dura Mater & Considered as a cusion of fat?

A

Epidural Space

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16
Q

What space of the SC is used for Epidural Anesthesia?

A
  • Epidural Space
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17
Q

What penetrates the dura mater & arachnoid mater?

A

CSF

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18
Q

What surrounds the Brain and SC?

A

CSF

19
Q

Grey Matter of the SC is ?

A

On the inside

20
Q

White Matter of the SC is on the ?

A

Outside

21
Q

What matter of the SC resembles a Butterfly or the letter H?

A

Gray Matter

22
Q

What does the Dorsal Horn contain?

A

interneurons

23
Q

What is the function of the Dorsal Horn?

A

Receives sensory input from sensory Neuron

24
Q

What Horn contains Motor Neurons?

A

Ventral Horn

25
Q

What is the function of Motor Neurons ?

A

-to exit the SC

26
Q

Both Dorsal and Ventral horns are within ___?

A

Grey Matter

27
Q

Where are the Dorsal and Ventral Root located?

A

Within Vertebral Foramen

28
Q

What root contain Sensory Fibers/ Neurons?

A

Dorsal Root

29
Q

What Root of the SC contain Somatic & Autonomic Neurons ( Motor Fiber) ?

A

Ventral Roots

30
Q

What is the function of the Dorsal Root?

A

Input to SC

31
Q

What root gives output to the Peripheral Body?

A

Ventral Root

32
Q

Each Spinal Nerve connects to spinal cord Via ______?

A

Ventral & Dorsal Nerve Roots

33
Q

Both Ventral & Dorsal Nerve Roots?

A

Untie; forming spinal nerves and intervertebral foramina

34
Q

What is the function of Gray Commissure?

A
  • Encloses Central Canal by 4th ventricle

- Connects Masses of Gray Matter

35
Q

Can a vegetative patient perform stretch reflex?

A

Yes; only spinal cord is required ( not brain)

36
Q

What reflex requires Grey Matter ONLY?

A

Stretch Reflex

37
Q

What matter innervates skeletal muscles by SOMATIC NERVES

A
  • Gray Matter
38
Q

What matter innervates SMOOTH & CARDIAC muscles by AUTONOMIC NERVEs?

A

Gray Matter

39
Q

What Matter receives sensory information from peripheral ( mainly in trunk region)?

A

Gray Matter

40
Q

What is the the function of White matter ?

A

Communicates to brain by Nerve Tracts allowing communication between Brain and SC

41
Q

What matter is required for Plantar Reflex?

A
  • Grey matter

- Mostly White Matter!!

42
Q

What is the direction of the Ascending sensory Tract & what side of the SC is it on?

A
  • Up; Dorsal Side
43
Q

The Descending Motor Tract goes ____ and is on the _______ side of the SC?

A
  • Down ; Ventral Side

BI 241 (8 decks)

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