Lecture 13- Hand Flashcards
What does the Palmar Cutaneous Branch of the Median Nerve supply?
Supplies central palm
What does the palmar cutaneous branch of the ulnar nerve supply?
Supplies medial side of palm
What is the articulation of the carpometacarpal joints of digits 2-5?
Metacarpus Trapezium
What is the vascularization of Carpometacarpal joints of digits 2-5?
Deep Digital Arteries from superficial palmar arches
How is the dorsum of the hand vascularized?
Via the dorsal arterial arch - From the Ulnar and Radial Arteries
How is the palmar surface of the hand vascularized?
Via the superficial and deep palmar arch
Where does the Ulnar Nerve enter the hand?
Superficial to the flexor retinaculum
Where does the Median Nerve enter the palm?
Deep to the flexor retinaculum
What is the most commonly fractured carpal bone?
Scaphoid
What is lost with a median nerve injury?
Loss of thumb opposition
What is lost with a ulnar nerve injury?
Loss of thumb adduction
Flexor Digitorum Superficialis Flexor Digitorum Profundus Flexor Pollicis Longus Median Nerve
What are the contents of the carpal tunnel?
Small vascular bundles, connecting palmar surface of phalanges with long flexor tendons
What are Vinculae?
Avulsion by long extensor tendon
What is Mallet Finger?
Results in hyperflexion of DIP
What does Mallet Finger cause?
