Forearm And Hand

Question 1

Where is the head of the ulna

Answer 1

Distal end of the forearm

Question 2

Where is the head of the radius

Answer 2

Proximal end of the forearm

Question 3

What joins the ulna and radius

Answer 3

Interosseous membrane

Question 4

What is the deep fascia of the forearm

Answer 4

Antebrachial fascia

Question 5

The antebrachial fascia thickens posteriorly to form the what

Answer 5

Extensor retinaculum

Question 6

The anterior thickening of the antebrachial fascia is identified by some as …

Answer 6

Palmar carpal ligament

Question 7

Antebrachial fascia is also continued as the what when immediately distal and at a deeper level to the palmar carpal ligament

Answer 7

Flexor retinaculum or transverse carpal ligament

Question 8

What do you call the tendon where all the superficial muscles are attached proximally to the medial epicondyle of the humerus

Answer 8

Common flexor tendon

Question 9

What muscles are part of the superficial layer of the anterior forearm and attached to the common flexor tendon

Answer 9

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

Question 10

The intermediate layer of the anterior forearm muscle is made up of only one muscle. What is it

Answer 10

Flexor digitorum superficialis

Question 11

Flexor digitorum superficialis is made up of what type of muscle fiber? Fast or slow twitch fibers?

Answer 11

Fast twitch fibers

Predominantly composed of large white fibers

Question 12

3 muscles composing the deep layer of the anterior forearm muscle

Answer 12

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

Question 13

What is the deepest muscle in the forearm

Answer 13

Pronator quadratus

Question 14

Principal extensor of the medial four digits

Answer 14

Extensor digitorum

Question 15

What muscle is in the posterior compartment but flexes the arm

Answer 15

Brachioradialis

Question 16

Muscle that supinates the arm

Answer 16

Supinator

Question 17

Boundaries of the cubital fossa

Answer 17

Superiorly - imaginary line connecting the medial and lateral epicondyles
Medially - pronator teres
Laterally - brachioradialis

Question 18

Contents of the cubital fossa

Answer 18

Median nerve
Radial nerve
Terminal part of the brachial artery
Tendon of biceps brachii

Question 19

Arterial supply of the forearm

Answer 19

Ulnar and radial artery

Question 20

The ulnar artery ends by forming the what arch

Answer 20

Superficial palmar arch

Question 21

The radial artery mainly forms the what arch

Answer 21

Deep palmar arch

Question 22

The course of the radial artery

Answer 22

It winds around the lateral aspect of the wrist and courses through the anatomical snuffbox

Question 23

What bones lie on the floor or the snuff box

Answer 23

Scaphoid and trapezium

Question 24

What vein communicates with the median cubital vein

Answer 24

Cephalic vein

Question 25

What vein eventually drains to the axillary vein

Answer 25

Cephalic vein

Question 26

What vein joins the venae comitantes to form the axillary vein

Answer 26

Basilic vein

Question 27

Venous network found on the dorsal aspect of the hand

Answer 27

Dorsal venous network

Question 28

What vein arises from the lateral aspect of the forearm at the cubital region and ascends further into the arm where it will enter the deltopectoral groove

Answer 28

Cephalic vein

Question 29

What vein arises from the medial aspect of the dorsal venous network and ascends the forearm and enters the brachial fascia in the arm

Answer 29

Basilic vein

Question 30

What canal will the ulnar artery pass through with the ulnar nerve

Answer 30

Guyon’s canal

Question 31

What are the two eminences of the hand

Answer 31

Thenar (larger) and hypothenar (smaller)

Question 32

What fascia is thin on the thenar and hypothenar eminences but thick centrally

Answer 32

Palmar fascia

Question 33

What is the expanded tendon of the palmaris longus

Answer 33

Palmar aponeurosis

Question 34

What septum extends deeply from the medial border of the palmar aponeurosis to the 5th metacarpal

Answer 34

Medial fibrous septum

Question 35

What septum extends deeply from the lateral border of the palmar aponeurosis to the 3rd metacarpal

Answer 35

Lateral fibrous septum

Question 36

What space is prone to infection in the hand

Answer 36

Thenar space and midpalmar space

Question 37

What muscles are part of the thenar muscles

Answer 37

Abductor pollicis brevis Flexor pollicis brevis Opponens pollicis

Question 38

What muscles comprise the hypothenar compartment

Answer 38

Abductor digiti minimi Flexor digiti minimi brevis Opponens digiti minimi Palmaris brevis

Question 39

What are the short muscles of the hand

Answer 39

Lumbricals nad interossei

Question 40

Where do the lumbricals arise from

Answer 40

Tendons of the flexor digitorum profundus

Question 41

What is the main action of the four dorsal interosseous muscles

Answer 41

Abduction of the fingers

Question 42

What is the main action of the 3 palmar interosseous muscles

Answer 42

Adduction of the fingers

Question 43

What are the arteries and veins of the hand

Answer 43

Radial and ulnar arteries | Cephalic (latetal) and basilic (medial) veins

Question 44

What innervates the hypothenar muscles and 3rd and 4th lumbricals and the rest of the hand muscles

Answer 44

Ulnar nerve

Question 45

What innervates the thenar muscles and first two lumbricals

Answer 45

Median nerve

Question 46

Palsy that results to inability to oppose thumb, difficulty in gripping things

Answer 46

Median nerve palsy or carpal tunnel syndrome

Question 47

Partial or complete surgical division of the flexor retinaculum

Answer 47

Carpal tunnel release

Question 48

Palsy characterized by wrist drop

Answer 48

Radial nerve palsy or saturday nights palsy

Question 49

Compression of the ulnar nerve results to this

Answer 49

Ulnar nerve palsy or ulnar canal syndrome