MSK/SKIN/CT Final Details Flashcards
Layers of the epidermis
Corneum
Lucidum
Granulosum
Spinosum
Basal
Californians like girls in string bikinis
Cell-to-cell junctions that rely upon Ca2+
Cadhereins
(Calcium adereins)
Loss of which promotes metastasis (invasive ductal carcinoma is common example)
Carpal bones
Most commonly fractured?
Most commonly dislocated?
So Long To Pinky, Here Comes The Thumb
Scaphoid, lunate, triquetrium, pisiform, hammate, capitate, trapezoid, trapezium
Most commonly fractured: scaphoid
Most commonly dislocated: lunate
Function of the musculocutaneous nerve
flexion at the elbow
fracture of the surgucal neck of the humerous will damage what nerve and artery
Axillary nerve and posteriorcircumflex humeral artery
compression of the radial artery by a crust will cause what symptoms?
Wrist drop
Compression of the median nerve results in what musclular defect?
Dysfunction in wrist flexors and thumb opposition (hand of benediction)
Raidal nerve innervates what four sets of muscles?
Brachioradialis
Extensors of the wrist
Supinator
Triceps
cervical rib compression of lower brachial plexus can result in what presentation?
C8-T1 compression causing klumpke palsy with a reduced distal pulse
cause of ulnar claw?
Inability to extend 4th and 5th digits at the DIP and PIP
Lumbrical parlysis
Knee trauma like a PCL tear can cause damage to what structure?
Tibial Artery which is fixed on either side of the popliteal fossa
Soap bubble appearence of bone with multinucleated giant cells?
Giant cell tumor
Osteoclastoma (because osteoclasts are multinucleatd giant cells)
Periosteal elevation on the distal femur
Osteosarcoma
Onion skin appearnce in the bone is associated with what translocation
t(11;22)
Ewing sarcoma
Tx with dactinomycin
Malignant, shiny, cartilagenous tumor
Chondrosarcoma
Can’t see, can’t spit, can’t climb shit
Sjogrens
Anti-Ro and Anti-La (SS-A and SS-B)
What kind of crystals in pseudogout?
Calcium pyrophosphate
Rhomboid and + birefringence
Elevated ACE with bilateral hilar lymphadenopathy
Sarcoidosis
temoral arteritis with joint pain and stiffness in the shoulders and hips
Polymyalgia rhematica
Tx: low dose corticosteroids
Discrete tenderpoints in a yound woman with widespread MSK pain?
Fibromyalgia
progressive symmetric proximal muscle weakness characterized by endomesial inflammation with CD8+ t cells
Polymyositis
Polymyositis with a malar rash and grottens papules on knuckles
Dermatomyositis
Ab present in both dermato- and polymyositis
Anti-jo-1
deposits of IgA at the tips of dermal papilla
Dermatitis herpetiformis–> Celiac Dz
Inital patch followed by a rash that follows eipdermal lines
Pityriasis rosea
Yellow crusting skin ifection caused by what bug
S. aureus and S. pyogenese
Yellow crusting with blisters
Bullous impetigo caused by S. aureus
Leukotriene which is a strong chemotacitc agent
LTB4
