Hand Flashcards
Where would you find the carpometacarpal joints
Lie between the distal row of carpal bones and the proximal parts (the base) of the metacarpals
Where would you find the metacarpophalangeal joints
Lie between the distal parts (heads) of the metacarpals and the proximal phalanges
Where would you find the interphalangeal joints
Lie between the phalanges
How many interphalangeal joints does the thumb have
1
How many interphalangeal joints do the fingers have
2
Proximal
Distal
Define power grip
Hold or squeeze objects tightly
Define hook grip
Carrying objects with handles
Define precision grip
Allows us to hold objects between the pads of our thumb and index finger
What is abduction of the fingers
Moving the fingers apart
What is adduction of the fingers
Bringing the fingers together
Where does the flexor carpi radialis insert
2nd metacarpal
Where does the flexor capri ulnaris insert
5th metacarpal
What anterior compartments muscles flex the digits
Flexor digitorum superficialis
Flexor digitorum profundus
Flexor pollicis longus
Travel through carpal tunnel - can do wrist flexion
What happens to the tendon of the flexor digitorum superficialis
Where does it insert
What is its job
Splits into two slips which insert onto either side of the middle phalanx of digits 2-5
Flexes the MCP joints and PIP joints of digits 2-5
What happens to tendon of flexor digitorum profundus
Where does it insert
What is its job
Passes through slit in FDS tendon
Inserts into palmar aspect of the distal phalanx of digits 2-5
Only muscle capable of flexing DIP joint
Flexes PIP joint ad MCP joint of 2-5
