Sheaths and bursa Flashcards
What are the tendons and sheaths of the palmar hand?
ulnar bursa
radial bursa
long flexor digital sheaths
What is the ulnar bursa?
tendon sheath surrounding long tendons of flexor digitorum superficialis and profundus tendon
the digital flexor synovial sheath
What is the radial bursa?
tendon sheath surrounding the flexor pollicis long tendon
a continual synovial sheath
What is the long flexor digital sheaths?
from area of MP joints sheath surrounding tendon and synovial sheath of long digital flexors and attached to the phalangeal bones with cross bands in the vicinity of the joints
What is the purpose of the long flexor digital sheaths?
keeps tendons in place during flexion
How does the flexor digitorum superficialis tendon start to split on the phalanx?
splits down the middle over the while over the proximal phalanx. its parts insert on the base of the middle phalanx
Where does the FD profundus tendon pass?
down the middle of the split of the FD duperficialis tendon and inserts on the base of the distal phalanx
How are the FD profundus and the FD digitorum superficialis tendon connected?
by a vinacula to the underlying bone
vasculature and innervation flow the vinacula itself