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Anatomy > The Back > Flashcards

The Back Flashcards

1
Q

What are the two main structures of the intervertebral disc?

A

Annulus polposus

Nuculus fibrosis

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2
Q

What are the four main ligaments of the vertebral column?

A

Anterior longitudinal ligament
Posterior longitudinal ligament
Ligament flavum

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3
Q

What are the three layers of back muscles?

A

Superficial
Intermediate
Deep

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4
Q

What are the superficial muscles of the back?

A

Trapezius

Latissimus Dorsi

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5
Q

What are the intermediate muscles of the back?

A

Serratus posterior superior

Serratus posterior inferior

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6
Q

What are the deep muscles of the back?

A

Erector spinae

Transversospinalis

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7
Q

Where are the transversospinalis located?

A

Deep to erector spinae

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8
Q

What are the structures that a palpable on the surface of the back?

A

1) vertebra prominens
2) thoracic spinous processes
3) sacral triangle
- bass between right and left PSIS
- apex = S3

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9
Q

Is it normal to have variation in the spinal chord?

A

Yes

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10
Q

Where does the spinal chord begin and end?

A

Begins at foramen magnum at medulla oblongata
Conus medullaris of the spinal chord often terminated at L1 or L2
And then cards equina begins

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11
Q

What are the parts of a spinal nerve?

A

Roots X 2
Body
Rami X 2

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12
Q

What structures supply blood to the spinal chord?

A

Anterior spinal artery

Posterior spinal arteries X 2

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13
Q

What are the meninges of spinal chord?

A

Pia mater
Arachnoid
Dura mater

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14
Q

What is the cauda equina formed by?

A

Numerous roots of the lumbar, sacral, and coccygeal spinal nerves

  • each root covered by Pia mater
  • film terminale
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15
Q

What forms the caudal sac?

A

Formed by arachnoid and dura mater (terminates at s2)

- lumbar cistern

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16
Q

Why are the contents of the vertebral canal superior to L1/L2?

A

Spinal chord

- meninges, posterior longitudinal ligament, internal vertebral venous plexus, epidural fat

17
Q

What are the contents of the vertebral canal inferior to L1/L2?

A

Cauda equina

Meninges, posterior longitudinal ligament, internal vertebral venous plexus, epidural fat

18
Q

What is the location, function and appearance of the anterior longitudinal ligament?

A

Attached to anterior surface of intervertebral discs, Single broad flat strong ligament

19
Q

What is the location, function, and appearance of the posterior longitudinal ligament?

A

Narrow band-like ligament

Attaches to the anterior wall of vertebral canal

20
Q

What is the periadicular recess and what are its contents?

A

I) very narrow portion of subarachnoid space that contains the dorsal root canal
ii) Csf

21
Q

What is the difference between the Dural sac and the caudal sac?

A

The Dural sac surrounds entire spinal chord

Anatomy (7 decks)

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