THRC.2 Flashcards

1
Q

Medulla spinalis is latin for…

A

Spinal cord

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2
Q

At which locations does the spinal cord become thicker?

A

Where nerves arise supplying the:

  • Forelimb
  • Hindlimb
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3
Q

Enlargement of the spinal cord where arising nerves support the forelimb

A

Intumescentia cervicalis

  • Enlargement of the spinal cord where arising nerves support the forelimb
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4
Q
A

Intumescentia lumbalis

  • Enlargement of the spinal cord where arising nerves support the hindlimb
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5
Q
A

Conus medullaris

  • Cone-shaped ending of the spinal cord
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6
Q
A

Dorsal median groove

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7
Q
A

Dorsal intermediate groove

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8
Q
A

Dorsal lateral groove

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9
Q
A

Dorsal median septum

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10
Q
A

Dorsal horn

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11
Q
A

Proper nucleus of the dorsal horn

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12
Q
A

Ventral horn

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13
Q
A

Dorsal root

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14
Q
A

Spongious zone

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15
Q
A

Gelatinous zone

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16
Q
A

Thoracic nucleus

17
Q
A

Central canal

18
Q
A

White matter

19
Q
A

Grey matter

20
Q
A

Motor nucleus

21
Q
A

Ventral root

22
Q
A

Ventral median fissure

23
Q

Dorsal and ventral roots join to form…

A

Spinal nerves

24
Q

Spinal ganglia are located…

A

Inside the dorsal root

25
Q

Spinal ganglia contain…

A

Sensory neurones

Except for the first spinal nerve

26
Q

Cauda equina

A
  • Sacral + caudal spinal roots
  • Pass beyond conus medullaris
  • Exit through their intervertebral foramen
27
Q
A

Conus medullaris

28
Q
A

Cauda equina

29
Q

Blood supply of the spinal cord

A

Segmental arteries from:

  • Vertebral artery (C-spine)
  • Cervical arteries
  • Dorsal intercostal arteries
  • Lumbar arteries
30
Q

Where do segmental arteries enter the vertebral channel?

A

Intervertebral foramen

  • Then divide into dorsal and ventral branches
  • Forming a plexus
31
Q

Give the arteries of the spinal cord

A
  • Ventral spinal artery
  • 2 x dorsal spinal arteries
32
Q

Where does the venous plexus drain?

A
  • Vertebral vein
  • Cranial vena cava
  • Azygous vein
33
Q
A

Dorsal root

34
Q
A

Spinal ganglion

35
Q
A

Motor nucleus

36
Q
A

Dendritic axon

37
Q
A

Motor fibre