March 10th

Question 1

what is the mnemonic for the brachial pouches, arches and clefts? What are they derived fro?

Answer 1

CAP–> outside to inside

1. Clefts–> ectoderm
2. Arches–> mesoderm and neural crest cells
3. Pouches–> endoderm

Question 2

What do the brachial arches give rise to?

Answer 2

mesoderm–> gives rise to the muscle and arteries

Neural crest cells–> give rise to the neurons

Question 3

What does the 6th brachial arch give rise to?

Answer 3

All intrinsic muscles of the larynx except for the cricothyroid

Question 4

What innervates all the intrinsic muscles of the larynx?

Answer 4

Recurrent laryngeal

Question 5

What is more common bones mets or primary bone cancer? What are the primary bone cancers?

Answer 5

Mets

- Multiple myeloma and Lytic

Question 6

Pt has bone mets from what location cause lytic lesions?

Answer 6

Thryoid

Kidney

Question 7

What bone mets cause mixed lytic and blastic lesions?

Answer 7

Breast

Lung

Question 8

Male who is 85 years old. What is the class blastic bone mets original cancer location?

Answer 8

Prostate

- the most common bone mets cancer

Question 9

what are the most common causes of bone mets?

Answer 9

Prostate
Breast
Lung
RCC

Question 10

elderly pt presents a Posterior hip dislocation. What nerve is commonly involved and what actions should the pt have trouble with?

Answer 10

Inferior gluteal nerve

• problems standing from sitting
• Trouble climbing stairs
• trouble jumping

Question 11

Why does a pt with problems of the inferior gluteal have troubles standing from sitting, climbing stairs or jumping?

Answer 11

Glut max is a powerful hip extensor

- hip extension is required for all of these actions

Question 12

What activates CDK’s?

Answer 12

Cyclins

hense cdk= cyclin DEPENDENT kisases

Question 13

what is the most common no-hematopoietic cancer?

Answer 13

Osteosarcoma

Question 14

How can one differetiate between photosensitivity and stevens-johnson syndrome?

Answer 14

SJS has 2 or more mucous membranes involved

Question 15

What drugs are more common to cause SJS or TENs?

Answer 15

Allopurinol
Lamotrigine
Sulfonamides
Navirapine

Question 16

What other diseases resemble SJS?

Answer 16

HSV

Mycoplasma in children

Question 17

Pts has very bad acne vulgaris. What is the common RX?

Answer 17

Tetracyclines

Question 18

What else do tetracyclines act against?

Answer 18

Rickesial 
Cholera
Lyme dz
Mycoplasma
Chlamydia

Question 19

What muscles does the radial nerve innervate?

Answer 19

BEST

• Brachioradialis
• Extensors + aBductor pollicis longus
• supinator
• Triceps

Question 20

What increases your chances of tendon rupture from flouroquinolones?

Answer 20

>60 years old 
Renal transplant
Renal failure
Hemodialysis
Long term glucocoritcoids

Question 21

Pts comes to office with tender muscular and soft mass at the proximal calf. He is having extreme pain of the right ankle and difficulty walking and plantarflexion. Likely DX if hes on abx’s?

Answer 21

Achilles tendon rupture

Question 22

What metabolizes 6-Mercaptopurine?

Answer 22

Xanthine oxidase

Question 23

Thus what increases the toxic motabolite of azathioprine?

Answer 23

Xanthine oxidase inhibitors

• Allopurinol
• Febuxostat

Question 24

If one were to take both allopurinol and Azathioprine , what would be the unfavorable SE?

Answer 24

Aplastic anemia

Question 25

What nerve innervates the adductor pollicis?

Answer 25

Ulnar nerve

Question 26

What is Froment sign?

Answer 26

Pt has a palsy in the ulnar nerve. They recruit their flexor pollicis to try old a piece of paper with their thumb and index rather than adduction of the thumb

Question 27

Young pt comes to office with short stature and large head. He has a mutation in FGFR3. What is the disease and what is it associated with?

Answer 27

Achondroplasia

ass. with advanced paternal age