Ch.6 Flashcards
T/F Elbow joint movements ≠ radioulnar joints movements ≠ wrist movements
True
What type of joint is elbow joint?
Ginglymus or hinge-type joint
Bony landmarks in elbow (Msr,Op,Cp,Rt)
• Medial supracondylar ridge
• Olecranon process
• Coronoid process
• Radial tuberosity
Only movements from elbow joint
Only flexion and extension
2 interrelated joints in elbow joint and which is primary?
• Humeroulnar joint -Primary elbow movements
• Radiohumeral joint
T/F Radial head has a relatively small amount of contact with
humerus
True
What is considered full extension in elbow joint?
olecranon process is received by olecranon fossa
T/F Joint stability increases as elbow flexes
False
• ↑ joint stability in full extension
• ↓ joint stability as elbow flexes
What is considered full flexion?
coronoid process fits into
coronoid fossa
T/F Stability in elbow flexion is primarily independent on the radial collateral ligament (RCL) and the ulnar collateral ligament (UCL)
False, dependent
T/F Females commonly have ↑ carrying angle than men
True
Type of joint of radioulnar joint
Trochoid or pivot-type joint
• Radial head rotates at _____ulna
• Distal radius rotates around
____ ulna
Proximal; distal
What ligament maintains radial head in its joints?
Annular
Movements of elbow joint
Flexion and extension
