Anterior Forearm Muscles

Question 1

Superficial Arm Muscles

Answer 1

Pronator Teres
Flexor Carpi Ulnaris
Palmaris Longus
Flexor Carpi Ulnaris

Question 2

Common Flexor origin

Answer 2

Medial epicondyle of the humerus

• crosses the elbow, involved with flexion of the arm

Question 3

Pronator teres origin

Answer 3

CFO

ulna - coronoid process

Question 4

Pronator teres insertion

Answer 4

Radius - middle of lateral surface

Question 5

Pronator teres innervation

Answer 5

median nerve

Question 6

Pronator teres action

Answer 6

Pronation of arm

weak flexion at the elbow

Question 7

Flexor Carpi Radialis origin

Answer 7

CFO

Question 8

Flexor Carpi Radialis insertion

Answer 8

base of 2nd metacarpal

Question 9

Flexor Carpi Radialis innervation

Answer 9

median nerve

Question 10

Flexor Carpi Radialis action

Answer 10

flexion at the wrist

abduction of hand

Question 11

Palmaris Longus origin

Answer 11

CFO

Question 12

Palmaris Longus insertion

Answer 12

Palmer apneurosis

Question 13

Palmaris Longus innervation

Answer 13

median nerve

Question 14

Palmaris Longus action

Answer 14

flexion at the wrist

weak flexion at the elbow

Question 15

Flexor Carpi Ulanris origin

Answer 15

CFO
Olecranon Process
Ulna: posterior border

Question 16

Flexor Carpi Ulanris insertion

Answer 16

Pisiform Bone
Hook of hamate
base of 5th metacarpal

Question 17

Flexor Carpi Ulanris innervation

Answer 17

** Ulnar Nerve

found deep to this muscle

Question 18

Flexor Carpi Ulanris action

Answer 18

flexion of the wrist

adduction of the hand

Question 19

Intermediate group of anterior forearm muscles

Answer 19

Flexor digitorum superficialis

Question 20

Flexor digitorum superficialis origin

Answer 20

CFO
** Ulna Coronoid Process
Radius anterior oblique line

Question 21

Flexor digitorum superficialis insertion

Answer 21

shafts of middle phalanges of medial 4 digits

Question 22

Flexor digitorum superficialis innervation

Answer 22

median nerve

Question 23

Flexor digitorum superficialis action

Answer 23

flexion of wrist
flexion of metacarpophalangeal and proximal interphalageal joints of medial 4 digits
weak flexion of elbow

Question 24

Deep anterior forearm muscles

Answer 24

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

Question 25

flexor digitorum profundus origin

Answer 25

Ulna upper portion anterior and medial surfaces | adjoining interosseus membrane

Question 26

flexor digitorum profundus insertion

Answer 26

base of distal phalanges of medial 4 digits

Question 27

flexor digitorum profundus innervation**

Answer 27

Medial half: ulnar nerve Lateral half: anterior interosseus nerve (branch of the median nerve)

Question 28

flexor digitorum profundus action

Answer 28

``` Flexion of: wrist metacarpopholangeal joints proximal interphalangeal joints distal interphalangeal joints ```

Question 29

Flexor pollicis longus origin

Answer 29

radius middle of anterior surface | adjoining interosseus membrane

Question 30

Flexor pollicis longus insertion

Answer 30

base of distal phalanx of thumb

Question 31

Flexor pollicis longus innervation

Answer 31

Anterior interosseus nerve | Branch of median nerve

Question 32

Flexor pollicis longus action

Answer 32

``` abduction of wrist flexion of: carpometacarpal joint metacarpophalangeal joint interphalangeal joint ```

Question 33

Pronator Quadratus origin

Answer 33

Ulna distal 1/4 of anterior surface

Question 34

Pronator Quadratus insertion

Answer 34

radius distal 1/4 of anterior surface

Question 35

Pronator Quadratus innervation

Answer 35

anterior interosseus nerve (branch of median nerve)

Question 36

Pronator Quadratus action

Answer 36

pronate forearm

Question 37

Muscles innervated by the ulan nerve

Answer 37

Flexor Carpi Ulnaris Lateral half of flexor digitorum profundus

Question 38

Location of median nerve

Answer 38

Deep to flexor carpi ulnaris

Question 39

Innervated by anterior interosseus nerve

Answer 39

Deep group of muscles of the forearm: Lateral 1/2 Flexor digitorum profundus Flexor Pollicis Longus Pronator Quadratus

Question 40

Cubital Fossa superior border

Answer 40

Imaginary line connecting 'epicondyles' of the humerus

Question 41

Cubital Fossa medial border

Answer 41

pronator teres

Question 42

Cubital Fossa lateral border

Answer 42

brachioradialis

Question 43

Cubital Fossa roof

Answer 43

deep fascia | bicipital apneurosis

Question 44

Cubital Fossa floor

Answer 44

brachialis (inserts on ulna) | supinator

Question 45

Radial nerve location

Answer 45

deep to brachioradialis

Question 46

Deep branch of the radial nerve pierces supinator, becomes

Answer 46

posterior interosseus nerve

Question 47

Nerve deep to biceps brachii in the cubicle fossa

Answer 47

musculocutaneous nerve

Question 48

Artery in cubital fossa

Answer 48

Brachial artery - bifurcates here Radial and ulnar artery

Question 49

Median and Ulnar nerve relative to humerus

Answer 49

median: in front ulnar: behind

Question 50

Median and Ulnar nerve relative to flexor retinaculum

Answer 50

median: below ulnar: above

Question 51

Ending of superficial branch of radial nerve

Answer 51

cutaneously

Question 52

Deep branch of radial nerve pierces

Answer 52

supinator | - becomes Posterior Interosseus

Question 53

Posterior interoseus nerve found? travelling with?

Answer 53

Deep to extensor digitorum (reveals supinator Posterior interosseus artery (branch of the ulnar artery)