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