MSK/derm A&P: random memorization

Question 1

Which layer of the epidermis is hypertrophied in callouses?

Answer 1

Stratum corneum

Question 2

Which layer of the epidermis has desmosomes?

Answer 2

Stratum spinosum

Question 3

What are the 2 site of attachment of the ACL?

Answer 3

Anterior tibial plateau

Lateral condyle of femur

Question 4

What are the 2 sites of attachment of the PCL?

Answer 4

Posterior tibial plateau

Medial condyle of femur

Question 5

Abnormal passive aBduction of the knee: what’s injured, and what’s the special name for this type of stress?

Answer 5

MCL; valgus stress

Question 6

Abnormal passive aDduction of the knee: what’s injured, and what’s the special name for this type of stress?

Answer 6

LCL; varus stress

Question 7

Pain on external rotation of the knee: injury?

Answer 7

Medial meniscus

Question 8

Pain on internal rotation of the knee: injury?

Answer 8

Lateral meniscus

Question 9

Fancy name for housemaid’s knee?

Answer 9

Prepatellar bursitis

Question 10

Pain on hip extension: what’s the name for this finding?

Answer 10

Psoas sign

Question 11

Dislocation of what wrist bone can cause acute carpal tunnel syndrome?

Answer 11

Lunate

Question 12

Why is the scaphoid so prone to AVN?

Answer 12

Retrograde blood supply

Question 13

What nerve is injured in Guyton canal syndrome?

Answer 13

Ulnar

Question 14

Anterior and posterior bounds of carpal tunnel?

Answer 14

Ant: flexor retinaculum
Post: carpal bones

Question 15

Tennis elbow is slang for what injury?

Answer 15

Lateral epicondylitis

Question 16

Golf elbow is slang for what injury?

Answer 16

Medial epicondylitis

Question 17

A torn annular ligament causes what injury?

Answer 17

Radial head subluxation

Question 18

I slashed the shit out of my wrists. What nerve did I sever?

Answer 18

Ulnar

Question 19

What is contained in the axillary sheath?

Answer 19

Axillary a/v, all 3 cords of the BP

Question 20

What structure(s) are especially vulnerable to compression by an axillary aneurysm?

Answer 20

BP cords, since they’re all trapped in the axillary sheath

Question 21

Why is elbow flexion still possible after a biceps tendon rupture?

Answer 21

Brachialis and brachioradialis are both still functional

Question 22

MC injured ligament in an ankle sprain?

Answer 22

Anterior talofibular

Question 23

What vessel empties into the femoral vein inferolateral to the pubic tubercle?

Answer 23

Great saphenous vein

Question 24

Injection into superomedial quadrant of someone’s butt. What nerve(s) could be injured?

Answer 24

Gluteal nn

Question 25

Injection into inferomedial quadrant of someone’s butt. What nerve(s) could be injured?

Answer 25

Sciatic n

Question 26

Where is the safe zone for butt injections?

Answer 26

Superolateral quadrant

Question 27

Within skeletal muscle, the voltage-gated dihydropyridine receptor is mechanically coupled to what other receptor?

Answer 27

Ryanodine receptor

Question 28

Bones of axial and appendicular skeleton and of the base of the skull are formed by which type of ossification?

Answer 28

Endochondral ossification

Question 29

Membranous ossification forms which bones?

Answer 29

Facial bones and calavarium

Question 30

What cells do osteoblasts differentiate from? Name the cell type and where they’re found

Answer 30

Mesenchymal stem cells in the periosteum

Question 31

Cleidocranial dysostosis affects bones formed by which type of ossification?

Answer 31

Intramembranous