Chp 6 Test

Muscles that primarily flex the elbow and probate the forearm include all of the following except?

Anconeus

The muscles that perform radioulnar supination include all of the following except?

Anconeus

An agonist to the supinator muscles is the

Biceps brachialis

Flexion of the elbow and supination of the forearm occur about the _______ and the ______ axes.

Sagittal, Longitudinal

The origin of the biceps brachii muscle

Supraglenoid tubercle above the superior lip of the gleniod fossa

Insertion of the triceps brachii muscle

The olecranon process of the ulna

Which of the following is the sole action of the Brachialis muscle ?

Flexion of the elbow

Actions of the elbow and radioulnar joints occur in all of the following planes except?

Frontal

Actions of the brachioradialis muscle include all of the following except?

Weak Flexion of the shoulder

When viewed from the anatomical position which of the following is located posterior surface of the arm?

Anconeus

Distal attachments of the radioulnar joint muscles

Are located on the radius.

Tightening a screw with a screwdriver using the right hand depends significantly upon the action of the

Biceps Brachialis

What muscle is the agonist when performing a pushup ?

Biceps brachii

Muscles that primarily extend the elbow and supinate the forearm include all of the following except?

Brachialis

Radioulnar supinators include all of the following except?

Brachialis

The muscles that perform radioulnar pronation include all of the following except?

Brachialis

Which of the following muscles is involved in both pronation and supination?

Brachioradialis

Radial tuberosity

Insertion of the biceps brachii muscle.

Pronator teres

Interacted by the median nerve

The ligament of the elbow include all of the following except ?

Interosseus

Bony stability of the elbow in full extension

Is enhanced by the olecranon process fitting into the olecranon

Normal bony limitation of the elbow Flexion

Is limited by the coranoid process fitting into the coranoid fossa

Which of the following is the origin of the supinator muscle?

Lateral epicondyle of the humerus and neighboring posterior part of the ulna.

Golfer's elbow

Medial Epicondylitis

Which of the following is the insertion of the pronator teres muscles ?

Middle 1/3 of the lateral surface of the radius

Ulna

Much larger proximally than the radius

All of the following are bony landmarks located on the humerus expect?

Olecranon fossa

Which of the following is not an action of the brachioradialis muscle ?

Extension of the elbow

Motion of the elbow

Primarily involves movement between articular surfaces of the humerus and ulna.

Actions of the biceps brachii include all of the following except ?

Pronation of the forearm

Which of the following muscles does not act in Flexion of the elbow ?

Pronation quadratus

The radial nerve innervates all of the following muscles expect ?

Pronator teres

When viewed from the anatomical position which of the following is located anterior surface of the arm?

Pronator teres

Radial collateral ligament

Provides lateral stability to the elbow and is rarely injured.

Positioning the elbow pronation

Reduces the effectiveness of the biceps Brachialis in flexing the elbow.

The origin of the triceps muscle includes all of the following except?

Supraglenoid tubercle above the superior lip of the glenoid fossa of the scapula.

The most commonly injured ligament in the elbow due to throwing is the

Ulnar collateral ligament