Lecture 15- Forearm and Wrist

Question 0

Interosseous membrane
Unites ….. and …….
Attachment for muscles.
Fibres pass predominantly …….. from radius to ulna.
Transfers force from radius ulna ->humerus -»shoulder ->clavicle -> sternum

Answer 0

Radius and ulna

inferiorly

Question 1

Joints

• Elbow joint = ……. …….

Answer 1

synovial hinge

Question 2

Joints
• Proximal radioulnar joint =……. joint => Radius …… about the ulna during pronation (held in place by …….. ……..)

Answer 2

pivot

annular ligament

Question 3

Joints

Distal radioulnar joint = …….. ……..

Answer 3

synovial pivot

Question 4

Pronation
Rotation of radius on …….. of humerus and enclosed by
…….. ………

Answer 4

capitulum

annular ligament

Question 5

Pronation
Produced by the pronator ……… and pronator ……..
Innervated by the ……. Nerve

Answer 5

quadratus
teres
Median

Question 6

Supination
Produced by the …….. and ……. ……
Innervation by ………….. and ……. nerves.

Answer 6

supinator
biceps brachii
musculocutaneous
radial

Question 7

Elbow joint
Synovial hinge joint
Articular surfaces covered with …… …….

Answer 7

hyaline cartilage

Question 8

Elbow joint
Hinge joint
Movements = …….., ……..

Answer 8

flexion, extension

Question 9

Medial (ulnar) collateral ligament
• ……… …….. of humerus to ……. process and …….. of ulna.
Triangular ligament with ………, ………. and …….. bands.

Answer 9

Medial epicondyle
coronoid
olecranon
Anterior,posterior and oblique

Question 10

Lateral (radial) collateral ligament
• ……… ……… of humerus to …….. …….. of ulna and ………. …………; capitulum of humerus to head of radius.
• Is …….. than ulnar collateral ligament but provides posterolateral stability.

Answer 10

Lateral epicondyle
radial notch
annular ligament
weaker

Question 11

Anterior forearm muscles 
• Superficial layer:   
Common ...... origin = ......... ......... of humerus 
 • Flexors, pronators 
 • Mainly innervated by ....... nerve

Answer 11

flexor
medial epicondyle
median

Question 12

Posterior forearm muscles 
• Superficial layer: 
Common extensor origin = ......... ........ of humerus 
• Extensors, supinators 
• All innervated by ...... nerve

Answer 12

lateral epicondyles

radial

Question 13

Blood supply
•……. artery
•…….. artery
•…….. artery

Answer 13

Brachial
Ulnar
Radial

Question 14

Venous drainage 
• SUPERFICIAL: 
• ........... vein – lateral 
• ............ vein – middle 
•........... vein - medial 
 • DEEP: 
• Radial veins 
• Ulnar veins

Answer 14

Cephalic
Median
Basilic

Question 15

Lymphatics
• Superficial lymphatic vessels follow ……… veins
• Deep lymphatic vessels follow …… veins
• All drains into ………. LYMPH NODES

Answer 15

superficial
deep
AXILLARY

Question 16

structures lying in front of 
the wrist 
• Lateral ->medial 
• Radial artery 
• Tendon of flexor carpi radialis 
• Tendon of palmaris longus (if present) 
• Tendons of flexor digitorum superficialis 
• Tendon of flexor carpi ulnaris 
• Ulnar artery 
• Ulnar nerve

Answer 16

.