Quiz 6 (Spinal Anatomy)

Question 1

view slide 2

Answer 1

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Question 2

view slide 6-7

Answer 2

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Question 3

Supraspinous process Connects _______ of spinous processes

Answer 3

apices

Question 4

strongest ligament

Answer 4

ligamentum flavum

Question 5

Epidural Space: Where is it?

Answer 5

Lies between ligamentum flavum and dura mater

Question 6

Epidural Space: Where does it originate and end?

Answer 6

Contiguous from base of cranium to sacral sulcus

Question 7

Epidural Space: Distance from skin?

Answer 7

• Varies with level and loosely correlated with weight

- Midline Lumbar approach 2.5-8 cm, average 5 cm

Question 8

Depth (Potential Space) of epidural
Largest midlumbar – 5-6 mm
Thoracic – 3-5 mm
Cervical – 1.5-2 mm

Answer 8

Largest midlumbar – 5-6 mm
Thoracic – 3-5 mm
Cervical – 1.5-2 mm

Question 9

Spinal cord Extends from medulla oblongata to: adults/peds

Answer 9

Adults
L2

Pediatric
L3

Question 10

3 layers – meninges

Which layer holds the CSF?

Answer 10

Dura mater
Arachnoid mater
Pia mater

Arachnoid

Question 11

31 pairs of spinal nerves

Answer 11

8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal

Question 12

Thoracic nerves run along the inferior margin of the rib

Where would you do a chest tube?

Answer 12

The Superior aspect of the rib

Question 13

Level does not always correlate with vertebrae
1st exits between base of skull and atlas
C-8 between C7-T1
Cervical correlate with vertebrae below, after T1 correlates with vertebrae above.

Answer 13

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Question 14

S2-4 “keep your wood off the floor”

Answer 14

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Question 15

Spinal cord Divided into Dorsal, Lateral, and Ventral regions

Answer 15

Dorsal – entering sensory root

Ventral – outgoing motor root

Question 16

Grey Matter: Subdivided in to 12 Laminae of Rexed
I-VI
VII-IX

Answer 16

I-VI – afferent tracts
Receive sensory information from the periphery

VII-IX – ventral tracts

Question 17

Laminae II is very important to anesthesia

What is it called?

Answer 17

Substancia Gelatinosa

Question 18

2 classifications of receptors (many types)

• Extroceptors
• —-near surface of skin and oral mucosa
• Proprioceptors
• —-Deeper skin layers, joint capsules, ligaments, tendons, muscles, and periostium

Answer 18

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Question 19

look at 28-31

Answer 19

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Question 20

IV and Neuraxial opioids work here.

Answer 20

substantia gelatinosa

Question 21

Preganglionic neurons (What types of nerve fibers?)

Originate in the intermediolateral gray horn between?

Answer 21

B fibers, small

T1-L2/L3

Question 22

Damage to the superior cervical ganglia, central SNS damage, or injury to other cervical paravertebral ganglia cause:

What is this known as?

Answer 22

Miosis (small pupil)
Ptosis (drooping eyelid)
Anhydrosis (lack of sweating)

Horner’s Syndrome

Question 23

What order of pain transmission

Answer 23

• Transduction
• Transmission
• Modulation
• Perception

Question 24

view slide 46-48

Answer 24

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