Quiz 5

Question 1

What is the action of the brachioradialis?

Answer 1

Flexed elbow & assist to pronate and supinate

Question 2

The brachialis muscle is ___to the biceps brachii muscle.

Answer 2

Deep

Question 3

What is unique about the palmaris longus muscle?

Answer 3

Is absent in about 11% of the population, there may be 2, long and proximal tendon

Question 4

The tendon of _____ divides and inserts onto the middle phalanges of the digits

Answer 4

Flexor digitorum Superficials

Question 5

What muscle inserts into the styloid process of the radius?

Answer 5

Brachioradialis

Question 6

What structure clearly divides the wrist flexors from the extensors?

Answer 6

Brachioradialis and shaft of ulna

Question 7

Tendons that make-up the anatomical snuffbox?

Answer 7

Extensor pollicis longus, extensor pollicis brevis , abductor pollicis

Question 8

What is the origin of the abductor pollicis longus?

Answer 8

Posterior surfaces of ulna, radius, and interosseous

Question 9

Insertion of the flexor pollicis longus?

Answer 9

Base of distal phalanx of thumb

Question 10

What are the four Long muscles of the thumb?

Answer 10

Abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis flexor pollicis longus

Question 11

What is the origin of the supinator?

Answer 11

Lateral epicondyle of humerus

Question 12

What muscle assist the pronator teres with pronation of the forearm?

Answer 12

Pronator quadratus

Question 13

Triangular shaped muscle, that is a weak elbow is extensor and lateral to the olecranon process?

Answer 13

Anconeus

Question 14

What muscles are used when you bring your thumb and pinky finger together?

Answer 14

Opponents digiti minimi & opponens pollicis

Question 15

What is the action of the lubricals?

Answer 15

Extend 2nd-5th fingers at interphalangeal joints & Flex 2nd-5th fingers at the metacarpophalangeal joints

Question 16

The head of the radius is surrounded by what ligament?

Answer 16

Annular ligament

Question 17

What keeps the flexor tendons in place at the wrist?

Answer 17

Flexor retinaculum

Question 18

The hypothemar eminence is on what side of the palm?

Answer 18

Ulnar side of the palm

Question 19

What pulse can be felt at the thumb side of the wrist?

Answer 19

Radial artery

Question 20

Where can you palpate the ulnar nerve?

Answer 20

Medial side of the flexor surface

Question 21

Function of the radial and ulnar collateral ligaments?

Answer 21

Stabilize head of radius & ulna

Question 22

What muscles assist the pronator teres with pronation?

Answer 22

Pronator Quadratus

Question 23

Finger and wrist extension would lengthen what muscle?

Question 24

What are the superficial muscles of the forearm?

Answer 24

Flexor carpi radialis, pronator teres, palamaris longus, flexor carpi ulnaris

Question 25

Bringing the thumb and pinky together uses mainly these two muscles?

Answer 25

Opponens pollicis & Opponens digiti minimi

Question 26

What structure pads the space between the olecranon process and the skin of the elbow?

Answer 26

Olecranon bursa

Question 27

In the wrist the ulnar nerve and artery pass through a channel called the tunnel of guyon, formed by which two carpal bones?

Answer 27

Pisiform & hook of hamate

Question 28

Which are more powerful, pronators or supinators?

Answer 28

Supinator