Neuro numbers (exam 3)

Question 1

How many myosin molecules make up a myosin filament

Answer 1

200

Question 2

2 Hz / 2 seconds

Answer 2

4 twitches / 2 seconds

Question 3

Which nerves does the phrenic nerve originate from?

Answer 3

C3-C5

Question 4

If you broke these vertebra, you need a vent

Answer 4

C1-C4

Question 5

The fourth twitch is gone when ___ % of nAch-R are blocked

Answer 5

75-80%

Question 6

The third twitch is gone when ___ % of nAch-R are blocked

Answer 6

~85

Question 7

The second twitch is gone when ___ % of nAch-R are blocked

Answer 7

~90

Question 8

All twitches are gone when ___ % of nAch-R are blocked

Answer 8

95%

Question 9

What percent of nicotine acetylcholine receptors are blocked when a patient can do a head lift

Answer 9

About 70%

Question 10

Ballpark range to set your nerve stimulator at

Answer 10

50 to 80 mA

Question 11

What percent of spinal cord blood flow is supplied by the anterior spinal artery?

Answer 11

75%

Question 12

What percent of spinal blood flow is provided by the two posterior spinal arteries combined

Answer 12

25%

Question 13

How many feed vessels are going into the front from the neck?

Answer 13

2

Question 14

How many feed vessels are in the thorax?

Answer 14

2-3

Question 15

How many feed vessels are in the lumbar region?

Answer 15

One to two

Question 16

This artery supplies blood to 2/3 of the lower spinal cord

Answer 16

Great radicular artery or the artery of Adamkiewicz

Question 17

If you had to pick one level to associate with the great radicular artery, what would it be?

Answer 17

T10

Question 18

If you had to pick a range for the great radicular artery. What would it be?

Answer 18

T9-T12

Question 19

What percent of people have their GRA in between T9 and T12?

Answer 19

75%

Question 20

Absolute range for the GRA

Answer 20

T5 to L5

Question 21

What percent of your body mass is made up by skeletal muscle?

Answer 21

40%

Question 22

What percent of your body mass is made up of smooth muscle

Answer 22

10%

Question 23

How many intercostal arteries do you have?

Answer 23

12

Question 24

At how many hertz do you reach tetany

Answer 24

40 Hz

Question 25

How much of the calcium in a cardiac muscle comes from the sarcoplasmic reticulum before contraction?

Answer 25

80%

Question 26

How much of the calcium in a cardiac muscle before contraction comes in from the outside?

Answer 26

20%

Question 27

What is voltage?

Answer 27

The force that moves the current

Question 28

What is current?

Answer 28

It is the electrons moving usually in milliamperes

Question 29

What is current?

Answer 29

It is the electrons moving usually in milliamperes

Question 30

This receptor is an autoreceptor that allows Na & Ca in when acetylcholine binds to it and causes vesical pool one to move to vesical pool two and it’s ready release form

Answer 30

Alpha three beta two

Question 31

Three types of ionotropic glutamate receptors

Answer 31

Kainate, NMDA, AMPA

Question 32

What things can block your slower, glutamate receptor (NMDA)?

Answer 32

Lead, alcohol, ketamine, nitrous, and tramadol

Question 33

Name the extra pyramidal tracks

Answer 33

-Rubrospinal
-Reticulospinal
-Vestibulospinal
-Olivospinal

Question 34

Associate PKA with

Answer 34

cAMP

Question 35

Associate PKA with

Answer 35

cAMP

Question 36

Chemicals that can illicit pain

Answer 36

Bradykinin, ischemia, serotonin, histamine, hydrogen, ions, acetylcholine, prostaglandins, potassium

Question 37

Normal perfusion pressure of the spinal cord

Answer 37

50-150

Question 38

Normal perfusion pressure of the spinal cord

Answer 38

50-150