Forearm I-Script Diogo Flashcards
How many fingers and digits do humans generally have?
4 fingers and 5 digits
thumb is not considered a finger
Name the carpals in the distal row from lateral to medial using the anatomical position.
trapezium, trapezoid, capitate, hammate
Name the carpals in the proximal row from lateral to medial using the anatomical position.
scaphoid, lunate, triquetrium, pisiform
What forms the proximal and distal ends of a metacarpal?
base- proximal
head- distal
all in reference to the anatomical position
What type of joint joins the radius, ulna, and carpals together?
synovial joint in the hand AKA
synovial cavity of the distal radioulnar joint
The synovial cavity of the wrist joint articulates what structures?
the scaphoid, lunate, and triquetrium articulation with the distal end of the radius and the articular disc of the distal radioulnar joint
Which carpal does not contribute an articular surface to the wrist joint?
pisiform
it lies anterior to the triquetrium
How many and what movements are provided by the wrist and midcarpal joints?
4 movements:
- flexion
- extension
- abduction
- adduction
During flexion of the hand, most movement occurs at what joint?
midcarpal joint
During extension of the hand, most movement occurs at what joint?
wrist joint
What joint provides almost all the carpal movements responsible for abduction of the hand?
midcarpal joint
What joint provides almost all the carpal movements responsible for adduction of the hand?
wrist joint
The metacarpophalangeal joint joins what two structures?
the head of a metacarpal with the base of the corresponding proximal phalanx
In the anatomical position all the fingers are undergoing what movement?
adduction
each finger is in contact with its adjacent finger or fingers
The carpometacarpal joint of the thunb is what type of joint the articulates the trapezium with the base of the 1st metacarpal.
synovial joint
