hi guys! wanted to give you guys a bone review, so today I’m doing the carpals!! the carpals are the bones of your wrist; there are eight. the easiest way to remember their order is this jingle:
So Long To Pinky, Here Comes The Thumb
Scaphoid, Lunate, Triquetral, Pisiform (bottom row, right to left in anatomical position)
Hamate, Capitate, Trapezoid, Trapezium (top row, left to right)
here are some helpful tips for identifying and siding!
Scaphoid
Articulations: capitate, radius, lunate, trapezium
Looks like a snail
When the concavity is facing toward you, the tubercle rises in the side that it is
Lunate "the moon"
Articulations: capitate, radius, scaphoid, triquetral, hamate
With concavity toward you, articular facet is on the side it's from
Triquetral
Articulations: pisiform, hamate, lunate
Hold the "pinchable" common border.. The pisiform facet rises to the side it's from
Pisiform "the pea"
Articulations: triquetral *almost impossible to side
Trapezium
Articulations: scaphoid, trapezoid, MC I, MC II
Tubercle/crest facing you and distal "(aim the crossbow")
Groove aside the "eyepiece" is on side it's from
Trapezoid "the boot"
Articulations: scaphoid, trapezium, MC II, capitate
With "zipper" facing you.. The toe points to the side it's from
Capitate "darth vader"
Articulations: scaphoid, hamate, MC II, MC III, lunate, trapezoid
Face" is convex, concave "helmet" sets on the side the bone is from
Hamate
Articulations: triquetral, capitate, MC IV, MC V, lunate
When pointy side is facing you, flip up, which way the hook is is the side it’s from