Upper limb anatomy Flashcards
How many bones make up the phalanges?
14
How many bones make up metacarpals?
5
How many bones make up the carpal (wrist) region?
8
How many total number of bones are in the hand and wrist?
27
The two portions of the thumb:
proximal and distal phalange
The three portions of each finger:
proximal
middle
distal
What is the name of the joint between the proximal and distal phalanges of the first digit?
interphalangeal (IP) joint
What are the joints between the metacarpals and the phalanges?
MCP joint
What is the largest of the carpal bones?
capitate
Which carpal contains a hooklike process?
scaphoid
trapezium
hamate
pisiform
hamate
What is the name of the hooklike process that extends anteriorly from the hamate?
hamulus/hamular process
What is the most commonly fractured carpal bone?
scaphoid
Which carpal articulates with the base of the thumb?
scaphoid
lunate
trapezoid
trapezium
trapezium
Which two carpal bones are located most anteriorly as seen on a lateral wrist radiograph?
hamate and pisiform
trapezium and trapezoid
capitate and lunate
scaphoid and trapezium
scaphoid and trapezium
The third carpal bone on the proximal row (from the lateral aspect of wrist) is the:
A. hamate
B. triquetrum
C. trapezoid
D. scaphoid
triquetrum
Which of the bones of the forearm is located on the lateral (thumb) side?
radius
Which of the bones of the forearm is located on the pinky side?
ulna
Which joint permits the forearm to rotate during pronation?
proximal radioulnar joint
What is the articular portion of the medial aspect of the distal humerus?
trochlea
What is the similar structure found on the lateral aspect of the distal humerus?
capitulum
The deep depression located on the posterior aspect of the distal humerus is the ____________________
olecranon fossa
First and smallest of the concentric arcs of the elbow:
trochlear sulcus
The smaller intermediate arc of elbow:
capitulum
The larger intermediate arc of elbow:
trochlea
The third arc (part of ulna)
trochlear notch
The following five additional ligaments are also important in stabilizing the wrist joint:
dorsal radiocarpal
palmar radiocarpal
triangular fibrocartilage complex (TFCC)
scapulolunate
lunotriquetral
true
Which ligament of the wrist extends from the styloid process of the radius to the lateral aspect of the scaphoid and trapezium bones?
radial collateral
Which bone of the upper limb contains the coronoid process?
ulna
What’s the name of the two special turning/bending positions of the hand and wrist that demonstrate medial and lateral aspects of the carpal region?
ulnar and radial deviation
Which deviation is most commonly performed to detect a fracture of the scaphoid bone?
ulnar deviation
Why is a PA projection not ideal for a radiograph of the forearm?
the radius crosses over the ulna
two important fat stripes or band around the wrist joint:
scaphoid
pronator
What is a mnemonic for remembering the carpals?
Steve
Left
The
Party
To
Take
Carol
Home
The large concave depression, or notch, that articulates with the distal humerus.
trochlear notch
The small, shallow depression located on the lateral aspect of the proximal ulna.
radial notch
The ulnar notch is located at the:
A. distal end of the ulna
B. medial aspect of the distal radius
C. proximal end of the ulna
D. proximal end of the radius
medial aspect of the distal radius
IP joints have what type of joint movement?
ginglymus (hinge)
second-fifth MCP joints have what type of joint movement?
ellipsoidal (4 directions)
the first MCP joint has what type of joint movement?
ellipsoidal, with limited abduction and adduction
the first CMC joint of the thumb has what type of joint movement?
saddle
second-fifth CMC joints have what type of joint movement?
plane
the intercarpal joints have what type of joint movement?
plane
the wrist joint has what type of joint movement?
ellipsoidal
the elbow joint has what type of joint movement?
ginglymus (hinge)
ulnar deviation
“opens” and best demonstrates carpals on radial/lateral side of wrist
radial deviation
opens and best demonstrates carpals on the ulnar/medial side of wrist
fat pads/stripes
certain accumulations of fat at joint regions
Where are the coronoid process and radial fossae located?
anterior aspect of distal humerus
Where is the coronoid tubercle located?
medial aspect of coronoid process
arthrography is a radiographic study of:
soft-tissue structures within certain synovial joints
Which of the following structures is located on the distal humerus?
A. styloid process
B. olecranon process
C. coronoid process
D. capitulum
The distal radius will cross over the ulna when the hand is pronated.
true
