KIN 3304 - Ch. 6
Which of the following is not an action of the brachioradialis muscle?
Extension of the elbow
A movement of the forearm away from the shoulder is best described by the term "flexion."
F
In the anatomical position, the radius is more medial than the ulna.
F
The olecranon process is located on the medial aspect of the ulna.
F
As the elbow reaches full extension, the olecranon process of the ulna is received by the olecranon fossa of the humerus, and this provides increased joint stability.
T
Elbow motions primarily involve movement between the articular surfaces of the humerus and the ulna.
T
Flexion of the forearm with a barbell in the hands, known as "curling," is an excellent exercise to develop the biceps brachii muscle.
T
In the anatomical position, the tuberosity of the radius is in close proximity to the lateral side of the ulna.
T
Medial epicondylitis is frequently referred to as "golfer's elbow."
T
Positioning the forearm in pronation decreases the effectiveness of the biceps brachii muscle. In flexing the elbow.
T
The distal attachments of the radioulnar joint muscles are located on the radius.
T
The insertion of the biceps brachii muscle is on the tuberosity of the radius and bicipital aponeurosis.
T
The pronator teres muscle originates from the distal part of the medial supracondylar ridge of the humerus and the medial side of the proximal ulna.
T
The triceps brachii muscle inserts on the olecranon process of the ulna.
T
The ulna is much larger proximally than the radius.
T
Which of the following muscles is best stretched by using a partner to grasp the wrist and passively take the forearm into extreme supination while maintaining full elbow extension?
The pronator quadratus muscle
Which of the following is the sole action of the brachialis muscle?
True flexion of the elbow
Which of the following is an action of the pronator teres muscle?
Weak flexion of the elbow
Radioulnar supination is performed by all of the following muscles except the:
anconeus muscle
The long head of the triceps brachii muscle originates from the:
infraglenoid tubercle below the inferior lip of the glenoid fossa of the scapula.
The pronator teres muscle inserts on the:
middle third of the lateral surface of the radius.
The _________ muscle does not perform flexion of the elbow.
pronator quadratus
Flexion of the elbow occurs in the _______ plane of motion, and supination of the forearm occurs in the _______ plane of motion.
sagittal; transverse
The tuberosity of the radius is in its most anterior position when the radioulnar joint is in:
supination
Which of the following is a posterior muscle?
the anconeus muscle
The actions of the brachioradialis muscle include all of the following except:
weak flexion of the shoulder joint.
Lateral epicondylitis is a condition that occurs less commonly than medial epicondylitis.
F
Supination refers to an internal rotary movement of the radius on the ulna.
F
The biceps brachii muscle originates from the coracoid process and the supraglenoid tubercle above the superior lip of the glenoid fossa.
F
The elbow joint is a hinge-type joint that allows only internal and external rotation in the sagittal plane.
F
The insertion of the brachialis muscle is on the coracoid process of the ulna.
F
The insertion of the brachioradialis muscle is on the proximal end of the radius at the styloid process.
F
The lateral supracondylar ridge is an anatomical landmark located on the radius.
F
Which of the following is an action of the biceps brachii muscle?
Horizontal adduction of the shoulder joint
Which of the following statements is true about the carrying angle?
It permits the forearms to clear the pelvis in the swinging movements during walking
In the context of radioulnar joint movements, which of the following terms refers to the internal rotary movement of the radius on the ulna that results in the hand moving from the palm-up to the palm-down position?
Supination (wrong)
Which of the following muscles is involved in both pronation and supination?
The brachioradialis muscle
The chief function of the _______ is to pull the synovial membrane of the elbow joint out of the way of the advancing olecranon process during extension of the elbow.
anconeus muscle
Radioulnar pronation is performed by all of the following muscles except the:
brachialis muscle
The supinator muscle originates from the:
lateral epicondyle of the humerus and neighboring posterior part of the ulna.
