Hand Flashcards
How many Phalanges are there? on one hand
14
What are the 3 types of phalanges?
distal, mid/intermediate and proximal
How many metacarpals are there in one hand?
5
How many carpal bones are there?
8
What are special bones located in metacarpals?
sesamoid bones
What are sesamoid bones?
- bones which develop in a tendon, usually adjacent to a joint
What are the function of sesamoid bones?
- protect the tendon from wear and tear as it moves across the bony surfaces of the joint
Where are two sesamoid bones commonly found?
at the distal end of the 1st metacarpal
What are the names of all the carpal bones in order?
scaphoid, lunate, triquetral, pisiform, hamate, capitate, trapezoid, trapezium
What is the mnemonic to help remember carpal bones?
some lovers try positions that they can’t handle
what is special about the mnemonic way of remembering carpal bones?
left x2! on right hand btw and opposite for left hand
What should you remember about the hamate?
there is a hook of hamate too!
What are all the joints of the hand?
interphalangeal joint
metacarpophalangeal joint
carpometacarpal joint
inter carpal joint
radiocarpal joint
ulnocarpal joint
What are all the synovial joints?
hinge, ellipsoid, saddle, plane
Where do you find synovial hinge joints? What do they help with?
interphalangeal joints
flexion
extension
Where do you find synovial ellipsoid joints? What do they help with?
metacarpophalangeal joint
radiocarpal joint
circumdiction
flexion
extension
abduction
adduction
Where do you find synovial saddle joints? What do they help with?
1st carpometacarpal joint
flexion
extension
abduction
adduction
rotation
allows the thumb to oppose fingers
Where do you find synovial plane joints? What do they help with?
2nd to 5th carpometacarpal joint
& inter-carpal articulations
help with Gliding only
What is circumdiction?
sequence of all flexion, extension, abduction and adduction
Where are the aspects on the hand?
dorsi - (back)
palmer - bottom (palm)
Where are the positions on the hand? p and d
proximal, closer to body
distal, furthest from body
Why do we need more than one projection?
Two projections help give a complete view and understanding and location of anatomy
what 2 carpal bones are special? why?
triquetrum + pisiform
always together in the same row
What are 3 common projections? Explain them
DP - straight
DP OBLIQUE - angled
LATERAL - sideways
DP means (back to palm)
