- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
32 Cards in this Set
- Front
- Back
|
dorsal carpal branch of ulnar artery:
|
transitions from palm to dorsum to contribute to the dorsal carpal rete
which supplies the carpal bones |
|
palmar carpal branch
of ua |
supplies the wrist
|
|
deep branch
of ua |
completes the deep palmar arch
|
|
superficial palmar arch:
|
**main supply for fingers**
|
|
3 common digital arteries from ulnar artery ==>
|
6 proper, + 1 proper that goes to the pinky
=> 7 proper digital arteries total |
|
superficial palmar branch
of ra completes |
the superficial palmar arch
|
|
radialis indices goes to radial side of
|
index finger
|
|
instead of common digital arteries, the branches of the radial rete are called
|
dorsal metacarpals,
which split into dorsal digitals |
|
radial artery emerges on the palmar side after passing between
|
two heads of the 1st dorsal IO muscle
|
|
perferating branches of the palmar metacarpal arteries supply:
(ra) |
the dorsal metacarpal arteries on **the dorsal side**
|
|
deep palmar arch supplies:
|
palm and wrist,
where palm = IO muscles |
|
palmar metacarpal arteries feed into the common digital arteries, but also supply the
|
**dorsal metacarpal arteries**
via perforating branches |
|
***ulnar artery supplies: ***
|
1. hypothenar muscles
(ABDM, FDM, ODM) 2. fingers (via superficial palmar arch) |
|
***radial artery supplies:***
|
1. thenar muscles (ABPB, FPB, OP) via superficial palmar branch
2. thumb via princeps pollicus 3. palm (IO's) and wrist (via deep palmar arch) |
|
***radiocarpal joint = ***
|
condyloid
=> flex/ext, AB/add of wrist |
|
articulating surfaces of wrist =
|
TFCC,
scaphoid, lunate, triquetrum |
|
***palmar carpal ligament***
|
most important ligament of the hand
the dorsal carpal lig. and both collateral ligaments are weak |
|
intercarpal, midcarpal, carpometacarpal, and intermetacarpal ligaments are all
|
plane joints,
***except for the CMC of the thumb, which is a saddle joint (only one)*** |
|
blood supply to wrist and hand:
|
dorsal carpal rete,
both palmar carpal branches, of ulnar and radial and deep palmar arch |
|
nerve supply to wrist/hand:
|
URM
|
|
MCP joint:
|
connects head of metacarpals to base of PP's
**condyloid** |
|
4 kinds of ligaments support the MCP joints:
|
1. palmar plates/ligaments
2. collateral ligaments 3. fibrous digital sheaths, 4. and the deep transverse metacarpal ligament |
|
collateral ligaments of the fingers are tightest during:
|
flexion
|
|
3 kinds of ligaments support the interphalangeal joints:
|
palmar plates
collateral ligaments fibrous digital sheaths |
|
Interphalangeal joints are _______ joints
|
hinge
|
|
blood supply to fingers =
|
digital arteries
|
|
nerve supply to fingers =
|
digital nerves
**know where they come from** |
|
palmar plates/ligaments:
|
fibrocartilagenous flaps that are attached to the more-distal IP,
**only cover** the more proximal bone -protect joints, are sites of ligament attachment |
|
the deep transverse metacarpal ligament attaches to
|
the palmar plates
|
|
opposition/reposition of thumb is basically flexion/extension;
weak opposition ~ strong opposition ~ |
only opponens pollicus
opponens pollicus + thumb flexors |
|
power grip = fist,
|
wrist in neutral position
|
|
precision grip ~ detail; muscles used =
|
intrinsics,
and wrist is extended |
