Metacarpals
How many degrees of freedom do the metacarpophalangeal joints have?
What are 2?
True/false? All of the digits have a proximal, middle and distal phalanx.
What is false?
What direction of force does the UCL of the thumb resist?
What is valgus?
Which two muscles fall into the first extensor compartment?
What are the EPB and the APL?
What is the action of the adductor pollicis?
Adduct and assist the thumb in flexion
What is the shape of the metacarpal head?
What is convex?
What two types of joints exist between phalanges (name them)?
What are proximal interphalangeal joints and distal interphalangeal joints?
How many annular ligaments exist in a finger?
What is 5?
What is the origin of the extensor digitorum?
What is the common extensor tendon from the lateral epicondyle of the humerus?
What is the intrinsic plus position of the hand?
What is MCP flexion, PIP and DIP extension?
In which MCP joint can you find sesamoid bones?
What is the 5th digit (thumb)?
What type of joint are interphalangeal joints considered to be?
What is a hinge joint?
Which ligaments other than the annular ligaments help create the pulley system of ligaments in each finger?
What are cruciate ligaments?
Which flexor muscle tendon is surrounded by the radial bursa?
What is the flexor pollicis longus?
How many dorsal interossei are in the hand?
What is 4?
Which carpals articulate with the metacarpals?
What are the hamate, capitate, trapezium, and trapezoid?
What is the purpose of a volar plate?
What is stabilization of the PIP joint/increasing concavity of the middle phalanx?
Which joints does the oblique retinacular ligament link in motion?
What are the DIP and the PIP joints?
What is the insertion of the flexor digitorum profundus?
What are the bases of the distal phalanges, and the palmar surface of fingers 2-5?
What joint is hyperextended in the intrinsic minus position of the hand?
What is the MCP joint?
Which metacarpal lacks a palmar interossei?
What is the third? (also acceptable - thumb)
How many interphalangeal joints exist TOTAL in both hands?
What is 18?
Name two muscles that attach to the extensor hood.
What are the extensor digitorum, palmar interossei, dorsal interossei, lumbricals?
What muscle’s tendons are splitting to form the camper’s chiasm?
What is the flexor digitorum superficialis?
What three muscles make up the hypothenar eminence?
What are flexor pollicis brevis, abductor pollicis brevis, and opponens pollicis?