MSK/derm A&P: random memorization Flashcards
Which layer of the epidermis is hypertrophied in callouses?
Stratum corneum
Which layer of the epidermis has desmosomes?
Stratum spinosum
What are the 2 site of attachment of the ACL?
Anterior tibial plateau
Lateral condyle of femur
What are the 2 sites of attachment of the PCL?
Posterior tibial plateau
Medial condyle of femur
Abnormal passive aBduction of the knee: what’s injured, and what’s the special name for this type of stress?
MCL; valgus stress
Abnormal passive aDduction of the knee: what’s injured, and what’s the special name for this type of stress?
LCL; varus stress
Pain on external rotation of the knee: injury?
Medial meniscus
Pain on internal rotation of the knee: injury?
Lateral meniscus
Fancy name for housemaid’s knee?
Prepatellar bursitis
Pain on hip extension: what’s the name for this finding?
Psoas sign
Dislocation of what wrist bone can cause acute carpal tunnel syndrome?
Lunate
Why is the scaphoid so prone to AVN?
Retrograde blood supply
What nerve is injured in Guyton canal syndrome?
Ulnar
Anterior and posterior bounds of carpal tunnel?
Ant: flexor retinaculum
Post: carpal bones
Tennis elbow is slang for what injury?
Lateral epicondylitis
Golf elbow is slang for what injury?
Medial epicondylitis
A torn annular ligament causes what injury?
Radial head subluxation
I slashed the shit out of my wrists. What nerve did I sever?
Ulnar
What is contained in the axillary sheath?
Axillary a/v, all 3 cords of the BP
What structure(s) are especially vulnerable to compression by an axillary aneurysm?
BP cords, since they’re all trapped in the axillary sheath
Why is elbow flexion still possible after a biceps tendon rupture?
Brachialis and brachioradialis are both still functional
MC injured ligament in an ankle sprain?
Anterior talofibular
What vessel empties into the femoral vein inferolateral to the pubic tubercle?
Great saphenous vein
Injection into superomedial quadrant of someone’s butt. What nerve(s) could be injured?
Gluteal nn
Injection into inferomedial quadrant of someone’s butt. What nerve(s) could be injured?
Sciatic n
Where is the safe zone for butt injections?
Superolateral quadrant
Within skeletal muscle, the voltage-gated dihydropyridine receptor is mechanically coupled to what other receptor?
Ryanodine receptor
Bones of axial and appendicular skeleton and of the base of the skull are formed by which type of ossification?
Endochondral ossification
Membranous ossification forms which bones?
Facial bones and calavarium
What cells do osteoblasts differentiate from? Name the cell type and where they’re found
Mesenchymal stem cells in the periosteum
Cleidocranial dysostosis affects bones formed by which type of ossification?
Intramembranous
