Fingers - Main ligament

Question 1

what is the fibrous digital sheath

Answer 1

cruiciate, anular ligaments
distal extensors of the palmar aponeurosis

Question 2

after exiting the carpal tunnel, the tendons of the

Answer 2

flexor digitorum superficialis and profundus muscles

cross the palm and enter the fibrous sheaths on the palmar aspect of the digits

Question 3

main function of the fibrous digital sheath

Answer 3

holds the tendons to the bony plane and prevent the tendons from bowing when the digits are flexed

Question 4

what muscles pass onto the dorsal aspect of the digits

Answer 4

tendons of the extensor digitorum and extensor pollicis longus muscles

Question 5

these tendons expand over the proximal phalanges to form the extensor hoods

Answer 5

tendons of the extensor digitorum and extensor pollicis longus muscles

Question 6

what other muscles joint the extensor hoods

Answer 6

extensor digiti minimi
extensor indicis
extensor pollicis brevis

Question 7

functions of the extensor hoods

Answer 7

serves as attachments for many of the intrinsic muscles of the hand

Question 8

responsibility of the intrinsic muscles

Answer 8

dedicated movements of the digits that could not be accomplished with the long flexor and extensor alone

Question 9

how does the muscles of the extensor hoods function

Answer 9

because force from the small intrinsic muscles is applied to the extensor hoods
- which is distal to the fulcrum of the metacarpophalangeal joints

Question 10

what movements is entirely due to the intrinsic muscles

Answer 10

ability to flex the metacarpophalangeal joints while extending the interphalangeal joints