Week 3--SPINAL CORD (A&P) --(MR. LIEB)

Question 1

NAME THE 5 REGIONS OF THE VERTEBRAL COLUMN

(# OF vertebrae in each region)

Answer 1

Cervical c1-c7 (7 vertebrae)

Thoracic T1 - T12 (12 Vertebrae)

Lumbar L1-L5 (5 Vertebrae)

Sacrum (1 vertebrae)—(5 fused)

Coccygeal (1 vertebrae)—(4 fused)

26 TOTAL VERTEBRAE

Question 2

what is the purpose of the Vertebrae in the spinal column?

(2)

Answer 2

1. Provide stability/support for the upper body allowing the ribs to attach to them-giving us support and structure for our chest wall. They allow for movement of our upper body through flexion and extension and rotation
2. They provide a structure of support for the spinal cord (which runs right down through the center of the vertebral column.. and is able to protect the cord from injury

Question 3

Answer 3

• Spinal cord
• Vertebrae
• Epidural Space
• Spinal Disc
• Spinal Nerves
• Spinal Fluid

Question 4

___________provides cushioning for the spinal cord

Answer 4

Spinal Fluid

Question 5

Spinal Cord is an elongated mass of _______ tissue

Answer 5

nerve

Question 6

Spinal cord is _______ superior (top) to __________ at the inferior (bottom) end

Answer 6

Thickest

thinnest

Question 7

Where does the spinal cord terminate

Answer 7

Right around L1-L2

Question 8

The core of the spinal cord is shaped like a _________. The center contains _________ matter and the outer part contains the _______ matter

Answer 8

butterfly

grey

white

Question 9

Grey matter (in the center) contains __________, _________ and ___________

Answer 9

• neurons
• glia
• blood vessels

Question 10

Initiation and creation of nerve signals that need to be sent are started where?

Answer 10

in the grey matter

Question 11

Two pathways in the white matter

Answer 11

• Ascending pathways ^{(going up to brain)}
  
  • Spinothalmic-Sensory
• Descending Pathways ^{(coming down from brain)}
  
  • Corticospinal-Motor

Question 12

of spinal Nerves

___ Cervical

___Thoracic

___Lumbar

___Sacral

___Coccygeal

Answer 12

31 pairs total

8 cervical

12 thoracic

5 lumbar

5 sacral

1 coccygeal

Question 13

(posterior) DORSAL root carries_________ neurons

Answer 13

sensory

Question 14

(anterior) ventral root carries ________ neurons

Answer 14

motor

Question 15

If the anterior part of the spinal cord was injured we tend to see _______ deficits

Answer 15

motor

Question 16

if a patient has lost sensory right around the umbilicus, then we can approximate that the injury to the spinal cord occurred somewhere around ________

Answer 16

T10

Question 17

Percentage of spinal cord injuries that are

—-Cervical

—–Thoracic

—-Lumbar

Answer 17

55% —Cervical

30—Thoracic

15%—Lumbar

Question 18

Spinal cord injury patients will suffer their signs/symptoms based upon two (2) factors:

Answer 18

1. LEVEL OF THE INJURY
   
   1. how high or low it is on the spinal cord
2. PORTION OF THE SPINAL CORD IS INJURED
   
   1. anterior portion
   2. posterior
   3. lateral