Cubital Fossa & Anterior Forearm

Question 1

Superficial layer of the Anterior compartment of the forearm

Answer 1

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

Question 2

Pronator teres attachments

Answer 2

from… the medial epicondyle & ulnar coronoid process
to… lateral aspect of the radius

Question 3

Pronator teres actions

Answer 3

pronates & flexes forearm

Question 4

Pronator teres innervation

Answer 4

PNS: median nerve
CNS C6-7

Question 5

Flexor carpi radialis attachments

Answer 5

from… the medial epicondyle (common flexor origin)
to… the palmar aspect of the base of the 2nd metacarpal

Question 6

Flexor carpi radialis actions

Answer 6

flexes & abducts hand at wrist (radial deviation) & may assist in pronation of forearm & flexion of the elbow

Question 7

Flexor carpi radialis innervation

Answer 7

PNS: median nerve
CNS: C6-8

Question 8

Palmaris longus attachments

Answer 8

from… the medial epicondyle of the humerus (common flexor origin)
to… the palmar aponerousis

Question 9

Palmaris longus actions

Answer 9

flexes hand at wrist & tenses palmar fascia

Question 10

Palmaris longus innervations

Answer 10

PNS: median nerve
CNS: C7-8

Question 11

Flexor carpi ulnaris attachments

Answer 11

from… the medial epicondyle (common flexor origin) of the humerus & proximal ulnar shaft
to… the pisiform

Question 12

Flexor carpi ulnaris actions

Answer 12

flexes & adducts hand at wrist (ulnar deviation) & assists in flexion of the elbow

Question 13

Flexor carpi ulnaris innervations

Answer 13

PNS: ulnar nerve
CNS: C7-T1

Question 14

Intermediate layer of the Anterior compartment of the forearm

Answer 14

Flexor digitorum superficialis

Question 15

Flexor digitorum superficialis attachments

Answer 15

from… the medial epicondyle (common flexor origin) of the humerus
to… the sides of the middle phalanges of digits 2-5

Question 16

Flexor digitorum superficialis actions

Answer 16

flexion of digits (metacarpophalangeal & proximal interphalangeal), & hand at wrist

Question 17

Flexor digitorum superficialis innervations

Answer 17

PNS: median nerve
CNS: C7-T1

Question 18

Deep layer of the Anterior compartment of the forearm

Answer 18

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

Question 19

Flexor digitorum profundus attachments

Answer 19

from… the anterior proximal two thirds of the ulna & interosseous membrane
to… the base of the distal phalanges of digits 2-5

Question 20

Flexor digitorum profundus actions

Answer 20

flexion of digits 2-5 (metacarpophalangeal & distal interphalangeal & proximal interphalangeal), & flexion of hand at wrist

Question 21

Flexor digitorum profundus innervations

Answer 21

PNS: median (anterior interosseous nerve; 2nd & 3rd digits) & ulnar (4th & 5th digits) nerves
CNS: C7-T1

Question 22

Flexor pollicis longus attachments

Answer 22

from… the anterior surface off the radius & interosseous membrane
to… the base of the distal phalanx of the thumb

Question 23

Flexor pollicis longus actions

Answer 23

flexes thumb (metacarpophalangeal & interphalangeal)

Question 24

Flexor pollicis longus innervations

Answer 24

PNS: median nerve (anterior interosseous nerve)
CNS: C7-T1

Question 25

Pronator quadratus attachments

Answer 25

from... the anterior surface of the distal ulna to... the anterior surface of the distal radius

Question 26

Pronator quadratus actions

Answer 26

pronates the forearm

Question 27

Pronator quadratus innervations

Answer 27

PNS: median nerve (anterior interosseous nerve CNS: C8-T1

Question 28

Median nerve muscular branches

Answer 28

Flexor carpi radialis Palmaris longus Flexor digitorum superficialis Pronator teres Flexor pollicis longus Flexor digitorum profundus (lateral/radial portion) Pronator quadratus Lateral/radial two lumbricals

Question 29

Ulnar nerve muscular branches

Answer 29

Flexor carpi ulnaris Flexor digitorum profundus (ulnar portion)

Question 30

Ulnar nerve deep muscular branches

Answer 30

Abductor digiti minimi Flexor digiti minimi Flexor pollicis brevis Opponens digiti minimi Palmar interossei Dorsal interossei Medial/ulnar two lumbricals Adductor pollicis muscles

Question 31

Joints of the elbow

Answer 31

Humeroulnar, Humeroradial, Proximal Radio-ulnar

Question 32

Humeroulnar joint classification

Answer 32

Hinge

Question 33

Humeroradial joint classification

Answer 33

Gliding

Question 34

Proximal Radio-ulnar joint classification

Answer 34

Pivot

Question 35

Ulnar collateral ligament function

Answer 35

resists excessive cubital valgus

Question 36

Ulnar collateral ligament attachments

Answer 36

from medial epicondyle to medial margin of coronoid process & olecranon process

Question 37

Radial collateral ligament function

Answer 37

resists excessive cubital varus

Question 38

Radial collateral ligament attachments

Answer 38

from lateral epicondyle to anular ligament

Question 39

Anular ligament function

Answer 39

stabilizes proximal radioulnar joint

Question 40

Anular ligament attachments

Answer 40

from the anterior margin of the radial notch to posterior margin of radial notch surrounding head of radius

Question 41

Interosseous membrane ligament attachments

Answer 41

from interosseous border of radius to interosseous border of ulna