Spinal Cord And Spinal Nerves - Control Flashcards Preview

Anatomy term 2 > Spinal Cord And Spinal Nerves - Control > Flashcards

Flashcards in Spinal Cord And Spinal Nerves - Control Deck (83)
Loading flashcards...
1

How many cervical, thoracic, lumbar, sacral and coccygeal vertebrae are there?

- cervical - 7
- thoracic - 12
- lumbar - 5
- sacral - 5
- coccygeal - 1

2

How many coccygeal spinal nerves are there?

1

3

How many cervical spinal nerves are there?

8

4

What is the nerve root of the phrenic nerve?

C3,4,5 keeps the diaphragm alive.

5

How many spinal cord segments are there?

31

6

How many thoracic spinal nerves are there?

12

7

How many lumbar spinal nerves are there?

5

8

How many sacral spinal nerves are there?

5

9

How many coccygeal spinal nerves are there?

1

10

How many segmental spinal nerves does each segment give rise to?

1 pair

11

How many pairs of spinal nerves are there?

31 pairs

12

Where do spinal nerves lie in the cervical region?

Above the vertebra

13

Where do the spinal nerves lie in relation to the thoracic, lumbar, sacral and coccygeal vertebrae?

Below the vertebra

14

Where does spinal nerve C1 emerge?

Between the skull and C1 vertebra

15

Where do the spinal nerves C2 to C7 emerge?

Superior to pedicles

16

Where does the spinal nerve C8 emerge?

Inferior to Pedicles of C8 vertebra

17

Where do the spinal nerves T1 to Co emerge?

Inferior to the Pedicles of their respective vertebrae

18

How many vertebra does the vertebral column contain?

30

19

What is a laminectomy?

cut through the lamina to look into the vertebral column

20

What is the Cauda equine?

cluster of rootlets

21

what is the conus medullaris?

inferior tip of the spinal cord - L1/2 - termination of spinal cord

22

what is the dorsal rootlet?

a very small series of rootlets that go to a specify segment

23

What does the cervical enlargement contain? (what plexus?

the brachial plexus

24

What types of information does the dorsal rootlet contain?

sensory information

25

What is the filum terminale?

Extensions of Pia mater - 1 fine strand attaches to the coccyx and is a remnant of the developing spinal cord

26

What does the lumbar enlargement accommodate?

sciatic nerve

27

What are dura, arachnoid and pia mater?

meninges that surround the spinal cord

28

What is dura mater?

tough, fibrous sleeve separated from bone by fat filled epidural (extra) space.

29

How many layers of dura mater are there?

1

30

What is arachnoid mater?

Thin, delicate layer pressed against dura by CSF