BWright's Important Stuff to Know

Question 1

superior gluteal artery suplies

Answer 1

ALL glutela muscles and tensor fasciae latae

Question 2

inferior gluteal arteries supplies

Answer 2

gluteus maximus
small lateral rotators
proximal (superior) hamstrings

Question 3

deep femoral artery is primary supply for

Answer 3

hip joint and whole thigh

Question 4

femoral artery primarily supplies

Answer 4

the leg with some muscular branches

Question 5

leg is highly compartmentalized and are

Answer 5

innervated via compartment (future lectures)

Question 6

Femoral Nerve

Answer 6

L2-4

Question 7

Obturator Nerve

Answer 7

L2-4

Question 8

Sciatic Nerve

Answer 8

L4-S3

Question 9

Tibial Nerve

Answer 9

L4-S3

Question 10

Common Fibular Nerve

Answer 10

L4-S2

Question 11

Lateral Femoral Cutaneous Nerve

Answer 11

L2-L3

Question 12

Posterior Femoral Cutaneous Nerve

Answer 12

S1-S3

Question 13

Pudendal Nerve

Answer 13

S2, 3, 4 Keep you Peenies off the Floor

Question 14

Patellar Reflex

Answer 14

patellar tendon redlex tests L2-4

Absence: Westphal’s sign

Question 15

Calcaneal Tendon Reflex

Answer 15

S1-2

If nerve roots are cut or compressed at ankle, reflex is absence

Question 16

Which is easier to diagnose, a terminal branch lesion or a mixed spinal nerve lesion?

Answer 16

A terminal branch easier is TYPICALLY more easy to diagnose because when it is damaged, there is loss to everything innervated by it

When the nerve root is lost, other nerve roots are probably taking over some of the deficit, so you have to go through multiple tests to dermine the lesion site

Question 17

AP view magnifies

Answer 17

heart

Question 18

PA view does

Answer 18

not magnify the heart

Question 19

Whatever is closer to the plate will

Answer 19

be the right size (facing the plate)

Question 20

Hounsfield scale refers to teh

Answer 20

width of window in imaging

Question 21

A wide window is better for

Answer 21

bone images

Question 22

A narrow window is better for

Answer 22

soft tissue

Question 23

lung window (wide)

Answer 23

Level -550

width 1600

Question 24

soft tissue mediastinal window (narrow)

Answer 24

level 70

width 450, contrast

Question 25

bone window (wide)

Answer 25

level 570

width 3077

Question 26

Bone window (mid-width window)

Answer 26

level 455

width 958

Question 27

Advantages of CT scan

Answer 27

Quick 
Motion not as big of an issue 
Gray scale manipulatable 
resolution excellent
cheaper, more available

Question 28

Disadvantages of CT

Answer 28

uses ionizing radiation
renal function and allergies must be ascertained prior to
(iodine allergies)

Question 29

T1 MR

Answer 29

Longitudinal Relaxation Time

Fluid is dark in T1 weighted

Question 30

T2 MR

Answer 30

Tranverse Relaxation Time

Fliud is light in T2 weighted images

Question 31

Advantages of MR

Answer 31

No ionizing radiation
better soft tissue contrast
versatile

Question 32

Disadvantages of MR

Answer 32

long time to do 
more expensive
not post-hoc image manipulation
claustrophobic
no metal in body
gadolinum can't be used in pregnant pt 
risky for renal dysfunction ppl 
noisy

Question 33

US: high frequency

Answer 33

7-15MHz used for superficial strcutures (thyroid, breast testes)

Question 34

US: low frequency

Answer 34

1-3.5MHz used for deeper structures (abdome and pelvis)

Question 35

only two things enter and exit adductro canal

Answer 35

Femoral Artery and VEin

Question 36

Saphenous N enters Adductor canal but

Answer 36

does not leave it,

exits through anteromedial setum instead

Question 37

In the canal, these things branch off and exit through other places

Answer 37

descending genicular A

Saphenous branch of the descending genicular A which exits via anteromedial septum

articular branch of the descending geniucal artery to anastomosis