Chapters 6 & 7 - Review Questions

How many phalanxes are there

14

How many metacarpal bones are there?

5

The number of carpal bones

8

This ligament provides a sling around the radial head for stability.

Annular ligament

Standing in anatomical position, pronate at the radioulnar joint. Is the anconeus located anteriorly or posteriorly?

Anteriorly

The wrist flexor muscles are located anteriorly or posteriorly?

Anteriorly.

The muscles that perform radioulnar pronation include all of the following except: Brachioradialis Brachialis Pronator teres Pronator quadratus

Brachialis

In the anatomical position the radius is medial with respect to the ulna.

False

The movements possible at the elbow joint.

Flexion and extension.

What is the sole action of the brachialis muscle?

Flexion of the elbow.

The flexor pollicus longus performs what action?

Flexion of the thumb

Movements possible at the wrist include:

Flexion, extension, adduction, abduction

The interphalangeal joints are what type of joint?

Ginglymus.

What is another name for hinge joint?

Ginglymus.

Tennis elbow occurs on the medial or lateral epicondyle?

Lateral epicondyle.

Name the movements possible at the radioulnar joint.

Pronation and supination.

Which is larger distally - radius or ulna?

Radius

The three bones forming the elbow joint.

Radius, ulna, humerus

This carpometacarpal joint at the thumb permits ball and socket movement.

Saddle Joint

Name the carpal bones

Scaphoid Trapezium Lunate Trapezoid Triquetrum Capitate Pisiform Hamate

The radioulnar joint is what type of joint?

Trochoid or pivot-type joint.

When performing a push-up, the biceps brachii is considered to be an antagonist muscle.

True

Which is larger proximally - the radius or ulna?

Ulna

This ligament provides medial support to prevent the elbow form abducting when stressed in physical activity.

Ulnar collateral ligament (UCL).