Forearm

Question 1

Forearm anterior compartment has how many muscles?

Answer 1

8

Question 2

All the forearm anterior muscles are innervated by what nerve? All except?

Answer 2

median

1.5 muscles

Question 3

Forearm posterior compartment has how many muscles?

Answer 3

11

Question 4

All the posterior compartment muscles are innervated by the …nerve.

Answer 4

radial

Question 5

Anterior and posterior compartments of the forearm are separated by the …

Answer 5

interosseous membrane

Question 6

Two major groups of the anterior forearm muscles

Answer 6

superficial

deep

Question 7

Superficial group forearm muscles

Answer 7

pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
flexor digitorum superficialis

Question 8

Deep group of forearm muscles

Answer 8

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

Question 9

The superficial group of forearm muscles attach via the medial epicondyle through a common …. and they all cross at the …joint.

Answer 9

flexor tendon

elbow

Question 10

What muscle is a strong pronator?

Answer 10

pronator teres

Question 11

What muscle flexes and radially deviates the wrist simultaneously?

Answer 11

flexor carpi radialis

Question 12

What muscle is absent in 17% caucasians?

Answer 12

palmaris longus

Question 13

What muscle inserts on the pisiform and hook of hamate?

Answer 13

flexor carpi ulnaris

Question 14

What is the function of flexor carpi ulnaris?

Answer 14

flex and adduct the hand/wrist

Question 15

What nerve innervates the flexor carpi ulnaris?

Answer 15

ulnar nerve

Question 16

What does the flexor digitorum superficialis do and what nerve innervates it?

Answer 16

flexes the proximal interphalangeal joint and median nerve

Question 17

Where does the flexor digitorum profundus originate?

Answer 17

ulna and anterior interosseous membrane

Question 18

What does the digitorum profundus do?

Answer 18

flexes the distal interphalangeal joint

Question 19

The lateral part of the digitorum profundus that serves the 2nd and 3rd digits, is innervated by .. nerve. The medial part that serves the 4th and 5th digits is innervated by the …nerve.

Answer 19

median

ulnar

Question 20

Flexor pollicis longus originates from..

Answer 20

radius and anterior interosseous membrane

Question 21

What is the only muscle that flexes the distal interphalangeal joint of the thumb?

Answer 21

flexor pollicis longus

Question 22

What nerve innervates the flexor pollicis longus?

Answer 22

median

Question 23

What does the pronator quadratus do?

Answer 23

pronates the forearm

Question 24

The ulnar nerve innervates the … muscle of the ….

Answer 24

flexor carpi ulnaris

flexor digitorum profundus

Question 25

Muscular branch of the median nerve innervates all the … muscles except the flexor carpi ulnaris and the medial half of FDP.

Answer 25

flexor forearm

Question 26

Branches of the median nerve

Answer 26

anterior interosseous nerve
palmar cutaneous branch of median nerve
recurrent branch of median nerve

Question 27

What is anterior interosseous syndrome?

Answer 27

inability to form an okay sign. There is an impairment of the innervation of flexor digitorium profundus and flexor pollicis longus muscle

Question 28

The recurrent branch of the median nerve loops around the distal border of the ligament and supplies the 3… muscles.

Answer 28

thenar

Question 29

The palmar carpal ligament is the continuation of the…

Answer 29

extensor reticulum

Question 30

Median nerve injury sign

Answer 30

hand of benediction when asked to form a fist

Question 31

Ulnar nerve continues in between the … and …

Answer 31

flexor carpi ulnaris

FDP

Question 32

Ulnar canal or canal of guyon is a …

Answer 32

groove between the pisiform and the hook of hamate bones

Question 33

Muscular branches of the ulnar nerve supplies the…

Answer 33

flexor carpi ulnaris and the meidal/unlar half of the FDP

Question 34

Ulnar nerve injury characterisitc

Answer 34

clawhand

Question 35

Cubital tunnel syndrome

Answer 35

ulnar nerve compression by flexor carpi ulnaris muscle

Question 36

Branches of the ulnar artery

Answer 36

anterior interosseous artery

posterior interosseous artery

Question 37

Radial artery is used as a ….for the separation of the flexors and extensor of the forearm.

Answer 37

demarcation

Question 38

3 lateral posterior forearm muscles

Answer 38

brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis

Question 39

3 posterior forearm muscles for the thumb

Answer 39

abductor pollicis longus
extensor pollicis brevis
extensor pollicis longus

Question 40

3 posterior forearm muscle for the digits

Answer 40

extensor digitorum
extensor digiti minimi
extensor indicis
plus the extensor carpi ulnaris

Question 41

Which muscle flexes the elbow joint: drinking muscle?

Answer 41

brachioradialis

Question 42

What muscle extends, abducts, the wrist when clenching a fist?

Answer 42

extensor carpi radialis longus

and extensor carpi radialis brevis

Question 43

Where is extensor carpi radialis in relation to brevis?

Answer 43

shorter nd deeper

Question 44

Which muscle abducts and extends the thumb?

Answer 44

abductor pollicis longus

Question 45

What muscle extends the thumb and forms the palmar border of the anatomical snuff box?

Answer 45

extensor pollicis brevis

Question 46

What muscle adducts the thumb and forms the dorsal border of the anatomical snuff box?

Answer 46

extensor pollicis longus

Question 47

Contents of the anatomical snuff box

Answer 47

extensor pollicis longus and brevis
radial artery
scaphoid

Question 48

What muscle is the principle extensor of the medial/ulnar four digits?

Answer 48

extensor digitorum