Hardy Ch. 6 Midterm
Tightening a screw with a screwdriver using the right hand depends significantly upon the action of the ____. A. Brachioradialis B. Biceps brachialis C. Supinator D. Triceps brachii
B. Biceps brachialis
The muscles that perform radioulnar supination include all of the following except? A. Anconeus B. Biceps brachii C. Brachioradialis D. Supinator
A. Anconeus
An agonist to the Supinator muscle is the __________. A. Biceps brachialis B. Triceps brachialis C. Brachioradialis D. Brachialis
A. Biceps brachialis
Muscles that primarily extend the elbow and supinate the forearm include all of the following except? A. Brachialis B. Anconeus C. Triceps brachii D. Supinator
A. Brachialis
The ligaments of the elbow include all of the following except? A. Annular B. Interosseus C. Ulnar collateral D. Radial collateral
B. Interosseus
When viewed from the anatomical position, which of the following is located posterior surface of the arm? A. Pronator teres B. Pronator quadratus C. Anconeus D. Biceps brachii.
C. Aconeus
T/F Lateral epicondylitis is a condition that occurs less commonly than medial epicondylitis
False
Actions of the biceps brachii include all of the following except? A. Weak flexion of the shoulder joint B. Pronation of the forearm C. Flexion fo the elbow D. Supination of the forearm
B. Pronation of the forearm
Which of the following muscles does not act in flexion of the elbow? A. Biceps brachii B. Pronator quadratus C. Brachialis D. Brachioradialis
B. Pronator quadrates
The origin of the triceps muscle includes all of the following except? A. Distal 2/3 of the posterior surface of the humerus B. Upper half of the posterior surface of the humerus C. Supraglenoid tubercle above the superior lip of the glenoid fossa of the scapula D. Infraglenoid tubercle below the inferior lip of glenoid fossa of the scapula
C. Supraglenoid tubercle above the superior lip of the glenoid fossa of the scapula
Which of the following muscles is involved in both pronation and supination? A.Brachioradialis B. Biceps brachial C. Supinator D. Brachialis
A. Brachioradialis
Muscles that primarily flex the elbow and pronate the forearm include all of the following except? A. Pronator teres B. Brachioradialis C. Anconeus D. Pronator quadratus
C. Anconeus
Radioulnar supinators include all of the following except? A. Biceps brachii B. Supinator muscle C. Brachialis D. Brachioradialis
C. Brachialis
The muscles that perform radioulnar pronation include all of the following except? A. Brachioradialis B. Pronator teres C. Brachialis D. Pronator quadratus
C. Brachilalis
T/F Bone stability of the elbow in full extension is enhanced by the olecranon process process fitting into the olecranon fossa
True
T/F Medial epicondylitis is also known as golfer's elbow
True
T/F Motion of the elbow primarily involves movement between articular surfaces of the humerus and ulna
True
T/F Normal bony limitation fo elbow flexion is limited by the coracoid process fitting into the coranoid fossa
True
T/F Positioning the forearm in pronation reduces the effectiveness of the biceps brachialis in flexing the elbow
True
T/F The distal attachments of the radioulnar joint muscles are located on the radius
True
T/F The insertion of the biceps brachii muscle is the radial tuberosity
True
T/F The origin of the biceps brachii muscle includes the supraglenoid tubercle above the superior lip of the glenoid fossa
True
T/F The pronator teres is innervated by the median nerve
True
T/F The radial collateral ligament provides lateral stability to the elbow and is rarely injured
True
T/F The ulna is much larger proximally than the radius
True
T/F This insertion of the triceps brachii muscle is the olecranon process of the ulna
True
T/F When performing a pushup the biceps brachii is considered to be an antagonist muscle
True
T/F When the arm is held in the anatomical position the radial tuberosity is in close proximity to lateral side of the ulna
True
The most commonly injured ligament in the elbow due to throwing is the ____.
Ulnar collateral ligament
Actions of the elbow and radioulnar joints occur in all of the following planes except? A. Frontal B. Horizontal C. Sagittal D. Transverse
A. Frontal
All of the following are bony landmarks located on the humerus except A. Lateral condyloid ridge B. Coranoid fossa C. Olecranon fossa D. Coranoid process
A. Lateral condyloid ridge
Which of the following is an action of the pronator teres muscle? A. Weak flexion of the elbow B. Weak supination from a pronated position C. Weak pronation from a supinated position D. Weak extension of the elbow
A. Weak flexion of the elbow
Actions of the brachioradialis muscle include all of the following except? A.Weak flexion of the shoulder B. Pronation from a supinated position to neutral C. Supination from pronated position to neutral D. Flexion of the elbow
A. Weak flexion of the shoulder
Which of the following is the origin of the supinator muscle? A. Lateral epicondyle of the humerus and neighboring posterior part of the radius B. Lateral epicondyle of the humerus and neighboring posterior part of the ulna C. Medial epicondyle of the humerus and the neighboring posterior part of the ulna D. Medial epicondyle of the humerus and neighboring posterior part of the radius
B. Lateral epicondyle of the humerus and neighboring posterior part of the ulna
Which of the following is the insertion of the pronator teres muscle? A. Distal 2/3 of the posterior surface of the humerus B. Middle 1/3 of the lateral surface of the radius C. Upper half of the posterior surface of the humerus D. Infraglenoid tubercle below the inferior lip of the glenoid fossa of the scapula
B. Middle 1/3 of the lateral surface of the radius
The radial nerve innervates all of the following muscles except? A. Triceps brachii B. Pronator teres C. Anconeus D. Brachioradialis
B. Pronator teres
When viewed for the anatomical position which of the following is located anterior surface of the arm? A. Supinator Teres B. Pronator Teres C. Anconeus D. Triceps Brachii
B. Pronator teres
Which of the following is not an action of the brachioradialis muscle? A. Pronation from supinated position B. Flexion of the elbow C. Extension of the elbow D. Supination from a pronated position
C. Extension of the elbow
Which of the following is the sole action of the brachilalis muscle? A. Pronation from supinated position B. Weak flexion of the shoulder C.Flexion of the elbow D. Supination from a pronated position
C. Flexion of the elbow
Flexion of the elbow and supination of the forearm occur about the _____ and ____ axes, respectively. A. Vertical, Sagittal B. Sagittal, frontal C. Sagittal, longitudinal D. Coronal, anteroposterior
C. Sagittal and longitudinal
T/F Movement at the elbow by the forearm away from the shoulder is accurately described by the term "flexion"
False
T/F Supination refers to internal rotary movements of the radius on the ulna
False
T/F The elbow joint is a hinge-type joint that allows for internal and external rotation
False
T/F The insertion of the brachialis muscle is the coracoid process of the ulna
False
T/F The insertion of the brachioradialis muscle is the proximal end of the radius at the styloid process
False
T/F The lateral supracondylar ridge is an anatomical landmark located on the ulna
False
T/F The olecranon process is located on the medial aspect of the ulna
False
T/F The radial head sits inside of the capitulum and is held in place by the annular ligament
False
T/F The scapula and clavicle serve as the proximal attachments for the muscles that flex and extend the elbow.
False
T/F While in the anatomical position the radius is medial with respect to the ulna
False
