Hand and Wrist Flashcards
Dupuytren’s contracture
when the palmar aponeurosis thickens and becomes fibrous and contracted causing the fingers to be pulled in
a sign of chronic alcoholism
role of the annular fibrous sheath
over the bone in a ring shape
where are fibrous sheaths located
superficial to the synovial sheath
role of the cruciform fibrous sheath
this is near joints and is cross shaped to allow movement
what is important to note about the radial and ulnar nerves
they do not pass through the carpal tunnel so are not effected by inflammation
where does the ulnar artery and nerve pass through
through the Guyon’s canal also known as the ulnar canal
What nerve supply the hypothenar muscles
deep branch of the ulnar nerve (C8,T1)
what nerve supplies the interossei
deep ulnar nerve (C8,T1)
interossei muscles of the hand
4 dorsal abduct and a re bipennate
3 palmar adduct and are unipennate
What is froments sign
squeeze paper between thumb and they try to flex their thumb up to keep it in place
tests ulnar nerve
phalens test
squeeze wrists together with hands down
tests median nerve and can diagnose carpal tunnel
hand of benediction
THINK BENEDICT DR STRAGE
median nerve compression at forearm or elbow
Ape hand
lack of opposition of the thumb
median nerve compression at elbow or wrist
