Quiz #5

Question 1

Origin of Extensor Carpi Ulnaris

Answer 1

Lateral epicondyle

Question 2

Insertion of Extensor Carpi Ulnaris

Answer 2

Metacarpal 5

Question 3

Action of Extensor Carpi Ulnaris

Answer 3

Wrist extension
Ulnar deviation
Weak elbow extension

Question 4

Origin of Extensor Carpi Radialis Longus

Answer 4

Lateral epicondyle

Question 5

Insertion of Extensor Carpi Radialis Longus

Answer 5

Base of metacarpal 2

Question 6

Action of Extensor Carpi Radialis Longus

Answer 6

Wrist extension
Radial deviation
Weak elbow extension

Question 7

Origin of Extensor Carpi Radialis Brevis

Answer 7

Lateral epicondyle

Question 8

Insertion of Extensor Carpi Radialis Brevis

Answer 8

Base of metacarpal 3

Question 9

Action of Extensor Carpi Radialis Brevis

Answer 9

Wrist extension
Radial deviation
Weak elbow extension

Question 10

Origin of Extensor Digitorum

Answer 10

Lateral epicondyle

Question 11

Insertion of Extensor Digitorum

Answer 11

Posterior base of middle and distal phalanges

Question 12

Action of Extensor Digitorum

Answer 12

Extension of digits 2-5 (MCP, DIP, PIP)
Wrist extension
Weak elbow extension

Question 13

Origin of Extensor Indicis

Answer 13

Distal posterior ulna

Question 14

Insertion of Extensor Indicis

Answer 14

Middle and distal phalanx 2

Question 15

Action of Extensor Indicis

Answer 15

Extension of index finger

Weak wrist extension

Question 16

Origin of Extensor Digiti Minimi

Answer 16

Lateral epicondyle

Question 17

Insertion of Extensor Digiti Minimi

Answer 17

Middle and distal phalanx 5

Question 18

Action of Extensor Digiti Minimi

Answer 18

Extension of little finger
Weak wrist extension
Weak elbow extension

Question 19

Origin of Extensor Pollicis Longus

Answer 19

Posterior mid ulna

Question 20

Insertion of Extensor Pollicis Longus

Answer 20

Proximal phalanx 1

Question 21

Action of Extensor Pollicis Longus

Answer 21

Thumb extension (CMC, MCP)
Wrist extension
Radial deviation

Question 22

Origin of Extensor Pollicis Brevis

Answer 22

Posterior mid radius

Question 23

Insertion of Extensor Pollicis Brevis

Answer 23

Proximal phalanx 1

Question 24

Action of Extensor Pollicis Brevis

Answer 24

Thumb extension (CMC, MCP)
Radial deviation
Weak wrist extension

Question 25

Origin of Abductor Pollicis Longus

Answer 25

Posterior mid radius and ulna

Question 26

Insertion of Abductor Pollicis Longus

Answer 26

Base of metacarpal 1

Question 27

Action of Abductor Pollicis Longus

Answer 27

Abduction and Extension of thumb at CMC
Radial deviation
Weak wrist extension