Spinal Cord Segments, Roots and Nerves Flashcards Preview

SCT2 Neurology Topic 3 > Spinal Cord Segments, Roots and Nerves > Flashcards

Flashcards in Spinal Cord Segments, Roots and Nerves Deck (15)
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1

A SC ___________ is the area of the spinal cord from which a pair of dorsal and ventral roots arise.

SEGMENT

2

Are there distinct boundaries between SC segments?

NO

3

What is the name of the bony channel, where the anterior and posterior roots join together to form a spinal nerve?

INTERVERTEBRAL FORAMEN

4

Where is the spinal nerve particularly vulnerable to injury?

INTERVERTEBRAL FORAMEN

5

The dorsal (posterior) root carries ___________ information.

AFFERENT

6

The ventral (anterior) root carries ___________ signals from the spinal cord to muscles and viscera.

EFFERENT

7

Each vertebra has 2 ___________ that project posteriorly to form the spinous process.

LAMINAE

8

Moving inferiorly down the SC, the length of the nerve roots ______________ progressively.

INCREASES

9

Which roots (below the conus medullaris) form the cauda equina?

LUMBAR SPINAL NERVE ROOTS
+
SACRAL SPINAL NERVE ROOTS

10

How many pairs of spinal nerves and segments does the SC have?

31 and 31

11

Name the 31 SC segments?

8 CERVICAL
+
12 THORACIC
+
5 LUMBAR
+
5 SACRAL
+
1 COCCYGEAL

12

The names of the spinal nerves correspond to the names of the SC ____________ from which the emerge.

SEGMENT

13

Each of the first cervical nerves leaves the vertebral column ___________ the corresponding vertebrae.

ABOVE

14

The eighth cervical nerve leaves between the ___________ cervical, and the __________ thoracic vertebrae.

7TH CERVICAL
+
1ST THORACIC

15

From the T-spine down, the nerves leave __________ the corresponding vertebra.

BELOW