Hand/Wrist/Thumb Flashcards
the hand has _____ phalanges, metacarpals, carpals
14 phalanges, 5 metacarpals, 8 carpals
carpals (1-8)
trapezium, trapezoid, capitate, hamate, pisiform, triquetrum, lunate, scaphoid
the phalanges
phalanges consist of 3 bones held together by joints that are enclosed by a joint capsule. the ends of the bones are also covered by cartilage which
contains synovial fluid; this acts as a shock absorber. ligaments join the bones together on both the medial and
lateral sides
extrinsic hand muscles
tendons that run across the wrist into the hand
intrinsic hand muscles
muscles originating in the hand
what are the three main nerves in the hand
radial nerve, median/medial
nerves, ulnar nerve
tendons
tendons that go to the fingers are inside tubes that provide lubrication and protection. Tendons on the back of your
hand glide rather than have
a true sheath.
general diagnosis/treatment of hand injuries
MOI, palpation, test for sensation/ROM, X-Rays (fractures)
immediate treatment of hand injuries
RICE, supportive splint, supportive taping, cast if a fracture has occurred
the wrist is bound by ______
a network of large, strong ligaments known as the palmar and dorsal radiocarpal ligaments
which bone is most commonly dislocated in the wrist
lunate bone is the most commonly dislocated bone of wrist- MOI: forceful hyperextension
MOI for most wrist sprains
falling on an outstretched hand resulting in damage to the palmar radiocarpal ligament
wrist is either hyperextended/hyperflexed
acute injury
symptoms of wrist sprains
- numbness/pain radiating from the wrist to the hands and fingers
- swelling and bruising
1st aid for wrist sprains
RICE, immobilize wrist joint, elevate w/ sling
signs/symptoms of finger sprains
swelling/pain
restrictive movement
black/blue discoloration
