Worksheetselbow & radialulnar joint
Total questions: 22
Worksheet time: 15mins
O: coracoid process, supraglenoid tubercle I: radial tuberosity A: flexion & radialulnar supination
biceps brachii
brachialis
brachioradialis
triceps brachii
O: distal half of anterior portion of humerus I: coronoid process of ulna A: flexion
supinator
biceps brachii
pronator quadratus
brachialis
O: lateral or supracondylar ridge of humerus I: radial styloid process A: pronate and supinate radial ulnar joint & flexion
brachioradialis
triceps brachii
biceps brachii
brachialis
O: infraglenoid tubercle of scapula, posterior humerus I: olecranon process of ulna A: extension of elbow
pronator quadratus
triceps brachii
supinator
biceps brachii
O: distal anterior ulna I: distal anterior radius A: pronation of radial ulnar joint
biceps brachii
supinator
pronator quadratus
brachioradialis
O: lateral epicondyle of humerus I: lateral radius just below the head A: supination
brachialis
triceps brachii
pronator quadratus
supinator
what type of diarthrodial joint is the elbow joint
conyloid
ginglymus
sellar
trochoid
When the elbow flex's, the coronoid process of the____articulate with the____
(a)
As the elbow extends, the____process of the ulna articulates with the____of the humerus
(a)
Elbow joint is most stable when fully extended
true
false
As the elbow flexes (a) degrees or more
Collateral ligaments prevent or reduce frontal plane motion
true
false
how much hyperextension does the elbow have?
16 degrees
10 degrees
5 degrees
0 degrees
Annular ligament purpose
decrease friction
keep head of ulnar against radius
Keep head of radius against the ulnar
allow movement
Interosseous membrane is a dynamic or static stabilizer that holds the two bones together?
static stabilizer
dynamic stabilizer
Match the following range of motion for elbow
pronation and supination
70-90 degrees
flexion
145-150 degrees
extension
0 degrees
hyperextension
10 degrees
which is the medial collateral ligament?
RCL (radial collateral ligament)
UCL (ulnar collateral ligament)
the carrying angle puts stress on which collateral ligament?
UCL (ulnar collateral ligament)
RCL (radial collateral ligament)
if the annular ligament is torn it affects which joint?
humeroulnar joint
radiohumeral joint
what ligament is the primary static stabilizer for radial ulnar joint?
annular ligament
radial collateral ligament
ulnar collateral ligament
at a ginglymus joint there are almost always collateral ligaments
true
false
what type of diarthrodial joint is the radioulnar joint ?
trochoid
ginglymus
sellar
enarthrodial
