Download Chapter 9: Elbow

Chapter 9: Elbow
Clinical Kinesiology for Physical Therapist Assistants, 3rd ed.
Name
For each question, choose the BEST answer.
1.
2.
Which nerve innervates most of the elbow flexors?
A.
Axillary
B.
Musculocutaneous
C.
Radial
D.
Median
What are the origins for the long head and the short head of the biceps
brachii?
A.
Infraglenoid tubercle; coranoid process
B.
Supraglenoid tubercle; coracoid process
C.
Supraglenoid tubercle; coranoid process
D.
Supraglenoid tubercle; infraglenoid tubercle
3.
What
A.
B.
C.
D.
nerve innervates the triceps?
Axillary N, C5-7
Radial N, C6-8
Radial N, C4-6
Suprascapular N, C5-6
4.
, the lateral head from
,
The triceps long head originates on the
and the medial head from the
of the
humerus.
A.
Infraglenoid tubercle; inferior to lesser tubercle on posterior
humerus; posterior surface
B.
Supraglenoid tubercle; posterior surface of humerus; posterior
surface
C.
Coracoid process; inferior to greater tubercle on posterior humerus;
inferior surface
D.
Infraglenoid tubercle; inferior to greater tubercle on posterior
humerus; posterior surface
5.
What
A.
B.
C.
D.
type of joint is the humeroradial joint?
Ball and socket
Pivot
Gliding
Hinge
6.
What
A.
B.
C.
D.
muscle attaches at the supraglenoid tubercle?
Long head of triceps
Long head of biceps
Brachioradialis
Anconeus
7.
What
A.
B.
C.
D.
articulates with the head of the radius?
Coracoid process
Trochlea
Capitulum
Olecranon fossa
8.
What
A.
B.
C.
D.
is the distal attachment for the brachioradialis?
Radial styloid process
Ulnar styloid process
Ulnar tuberosity
Radial tuberosity
9.
What
A.
B.
C.
D.
is the purpose of the medial collateral ligament?
Protect against valgus stresses
Protect against varus stresses
Prevent posterior dislocations
Keep the radius in proper alignment
10.
Which structure holds the radial head against the ulna?
A.
Medial collateral ligament
B.
Lateral collateral ligament
C.
Annular ligament
D.
Interosseous membrane
11.
Which is NOT a function of the interosseous membrane?
A.
Prevents radius and ulna from separating
B.
Surface area for muscle attachment
C.
Increases range of pronation and supination
D.
None of the above
12.
Which muscle attaches from the distal half of humerus, anterior surface to
the coronoid process and ulnar tuberosity?
A.
Biceps short head
B.
Brachialis
C.
Brachioradialis
D.
Coracobrachialis
13.
When the biceps perform supination without elbow flexion, what muscle
counteracts the elbow flexion?
A.
Triceps
B.
Supinator
C.
Pronator teres
D.
Anconeus
14.
Which one-joint elbow flexor attaches most distally?
A.
Biceps
B.
Brachialis
C.
Brachioradialis
D.
Wrist flexors
15.
Which muscle may prevent the annular ligament from being pinched in
the olecranon fossa during elbow extension?
A.
Triceps
B.
Anconeus
C.
Supinator
D.
Pronator teres
16.
What muscle arises from the medial epicondyle of the humerus and
coronoid process of the ulna and inserts on the lateral aspect of the radius
at its midpoint?
A.
Pronator teres
B.
Pronator quadratus
C.
Flexor carpi ulnaris
D.
Anconeus
17.
Which muscle is deep and wraps around the elbow joint laterally from the
posterior surface to the anterior surface?
A.
Pronator teres
B.
Pronator quadratus
C.
Anconeus
D.
Supinator
18.
What
A.
B.
C.
D.
nerve innervates the pronator quadratus?
Musculocutaneous
Radial
Median
Radial
19.
The carrying angle of the elbow is greater in females.
A.
True
B.
False
20.
The superior radioulnar joint is a uniaxial joint that allows for rotation.
A.
True
B.
False
21.
Wrist extensors are assistant movers for elbow flexion.
A.
True
B.
False
22.
There is a greater amount of pronation than supination in the forearm.
A.
True
B.
False