Elbow & Radioulnar joints
Which of the following is the origin of the supinator muscle?
Lateral epicondyle of the humerus and neighboring posterior part of the ulna
Which of the following is the insertion of the pronator teres muscle?
Middle 1/3 of the lateral surface of the radius
When viewed from the anatomical position which of the following is located posterior surface of the arm?
anconeous
An agonist to the supinator muscle is the ________.
biceps brachialis
The _____________ muscle has the following insertion: lateral surface of the distal end of the radius at the styloid process.
brachioradialis
The supinator has the following origin: lateral _________ of the humerus and neighboring posterior part of the ulna.
epicondyle
Movement of the forearm to the shoulder by bending the elbow to decrease its angle is termed _____________
flexion
Which of the following is the sole action of the brachialis muscle?
flexion of the elbow
The triceps brachii ___________ head has the following origin: distal two-thirds of the posterior surface of the humerus.
medial
All heads of the triceps brachii have the following insertion: _____________ process of the ulna.
olecranon
The pronator quadratus primary movement is _________ of the forearm.
pronation
Which of the following muscles does not act in flexion of the elbow?
pronator quadratus
External rotary movement of the radius on the ulna that results in the hand moving from the palm-down to the palm-up position is termed_______
supination
The biceps brachii long head has the following origin:________ tubercle above the superior lip of the glenoid fossa.
supraglenoid
Which of the following is an action of the pronator teres muscle?
weak flexion of the elbow
All of the following are bony landmarks located on the humerus except?
coranoid process
The brachialis has the following insertion: ___________ process of the ulna.
coronoid
The primary movement of all heads of the triceps brachii at the elbow joint is ___________
extension
Which of the following is not an action of the brachioradialis muscle?
extension of the elbow
Movement at the elbow by the forearm away from the shoulder is accurately described by the term "flexion".
false
The elbow joint is a hinge-type joint that allows for internal and external rotation.
false
The insertion of the brachialis muscle is the coracoid process of the ulna
false
The insertion of the brachialis muscle is the coracoid process of the ulna.
false
The lateral supracondylar ridge is an anatomical landmark located on the ulna.
false
While in the anatomical position the radius is medial with respect to the ulna.
false
Motion of the elbow primarily involves movement between articular surfaces of the humerus and ulna.
true
The distal attachments of the radioulnar joint muscles are located on the radius.
true
The origin of the biceps brachii muscle includes the supraglenoid tubercle above the superior lip of the glenoid fossa.
true
The pronator quadratus has the following origin: distal one-fourth of the anterior side of the _______
ulna
The pronator teres has the following origin: distal part of the medial condyloid ridge of the humerus and medial side of the proximal _______
ulna
Actions of the brachioradialis muscle include all of the following except?
weak flexion of the shoulder
