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HK - Anterior Forearm & Hand

Total questions: 38

Worksheet time: 50mins

Name
Class
Date
1.

IMPORTANT FOR THE PRACTICAL! We typically need to reflect (a)   and trace the median nerve distally to view the anterior interosseous (AI) nerve – which muscle needs to be reflected?

2.

A) Carpal tunnel is a space that exists under/over the flexor retinaculum (type the right answer)

B) As the median nerve exits the carpal tunnel, it immediately gives a VERY SUPERFICIAL branch that travels backwards called the (a)   - this is IMPORTANT FOR THE PRACTICAL!

3.

A) Palmaris longus inserts on the (a)   , a set of dense, triangular-shaped fascia located superficially immediately deep to the skin.

B) The ulnar nerve travels superficial/deep to palmaris brevis (Type 'deep' or 'superficial')

4.

The superficial branch of the ulnar nerve ends cutaneously and carries cutaneous sensation back from the _____ digits in most individuals.

a)

medial 1 ½ (one and a half) digits

b)

lateral 1 ½ (one and a half) digits

c)

medial 3 ½ (three and a half) digits

d)

lateral 3 ½ (three and a half) digits

5.

A) The ULNAR NERVE travels distally in the anterior compartment of the forearm deep to which muscle?

B) After piercing the hypothenar eminence, the deep branch of the ulnar nerve reappears on the deep (coconut) palm innervating the interosseus muscles and disappearing into (a)   .

6.

A) The ​ (a)   innervates adductor pollicis and creeps (b)   the muscle to innervate it.

B) The recurrent branch of the median nerve is located ​ (c)  

Choose from the below words
under
deep branch of the ulnar nerve
median nerve
recurrent branch of the median nerve
superficial branch of the ulnar nerve
over
anterior interosseous nerve
superficially
deep
7.

Where do the lumbrical muscles originate and insert? Please be as specific as you can. Also name their innervation and action...

4 lines
8.

Where do the interosseous muscles originate and insert? Please be as specific as you can. Also name their innervation and all actions...

4 lines
9.

A) The (a)   nerve exists between flexor digitorum profundus and flexor digitorum superficialis. In lab, it can sometimes be stuck on flexor digitorum superficialis as it sits deep to it.

B) Lumbrical muscles are located on the ulnar/radial/medial/lateral/thumb/pinky side of the long flexor tendons

Do not type the word 'nerve' for and choose only ONE word of the 6 for B (multiple correct answers will be accepted, but do not type multiple words)

10.

Categorize the following muscles in the anterior forearm to their innervation. Note that the anterior interosseus (AI) nerve is a branch of the median nerve.

Categorize the following

Pronator Teres

Flexor Carpi Radialis

Flexor Carpi Ulnaris

Pronator Quadratus

Medial half of flexor digitorum profundus

Lateral half of flexor digitorum profundus

Flexor Pollicis Longus

Palmaris Longus

Flexor Digitorum Superficialis

Anterior interosseus (AI) nerve
Median nerve: Superficial branches
Ulnar Nerve
11.

Name the 4 actions of the carpi muscles / "corner muscles". You may use the same anatomical action term more than once if you are referring to a different action (i.e., abduction)

Hint: Two of these actions are specific to these muscles & one is an action shared by all superficial anterior forearm muscles.

4 lines
12.

Categorize the following muscles by their depth

Categorize the following

Flexor Digitorum Superficialis

Flexor Digitorum Profundus

Flexor Carpi Radialis

Flexor Carpi Ulnaris

Pronator Teres

Palmaris Longus

Pronator Quadratus

Flexor Pollicis Longus

Superficial group
Intermediate Group
Deep Group
13.

Categorize the following muscles in the hand by their depth

Categorize the following

Flexor Digitorum Profundus

Palmaris Longus

Flexor Pollicis Longus

Flexor Digitorum Superficialis

Lumbrical muscles

Thenar Eminence

Hypothenar Eminence

Adductor Pollicis

Dorsal Interosseous Muscles

Palmar Interosseous Muscles

Palmaris Brevis

Superficial group
Intermediate Group
Deep Group
14.

Categorize the following muscles in the hand by their innervation/where they carry cutaneous (sensory) sensation from

Categorize the following

Lumbrical of digit 2

Thenar Eminence

Hypothenar Eminence

Adductor Pollicis

Dorsal Interosseous Muscles

Palmaris Brevis

Lumbrical of digit 3

Lumbrical of digit 5

Lumbrical of digit 4

Palmar interosseus muscles

Sensory information from the medial 1½ digits

Sensory information from the lateral 3½ digits

Deep Branch of the Ulnar Nerve
Median nerve (continuation)
Recurrent branch of the median nerve
Superficial branch of the ulnar nerve
15.

All the superficial & intermediate group of muscles within the anterior forearm originate at the common flexor origin / medial epicondyle of humerus. Match the following muscles to their distal attachment (insertion).

a)

Base of the second metacarpal bone

1.

Flexor carpi radialis

b)

Palmar aponeurosis

2.

Palmaris longus

c)

Middle third of the radius

3.

Pronator Teres

d)

Middle phalanges of digits 2-5

4.

Flexor digitorum superficialis

e)

Base of the fifth metacarpal bone

5.

Flexor carpi ulnaris

16.

A) True or false? Palmaris longus has a bony distal attachment (insertion).

B) Does palmaris longus travel over or under the flexor retinaculum?

a)

True, over

b)

True, under

c)

False, over

d)

False, under

17.

A) True or false? Flexor digitorum profundus attaches proximally to the common flexor origin (medial epicondyle of the humerus).

B) If we were to put our hands in anatomical position with palms forward, the metacarpals are numbered from _____ to _____

a)

True, medial to lateral

b)

False, medial to lateral

c)

True, lateral to medial

d)

False, lateral to medial

18.

Within the deep group of anterior forearm muscles exists flexor digitorum profundus and flexor pollicis longus, which both contribute to flexion at every joint proximal to their insertion. Name the origin and insertion of both muscles and be specific!

(a)  

19.

Flexor carpi ulnaris & radialis contribute to abduction/adduction at the _____. Flexor carpi ulnaris contributes to _____ while flexor carpi radialis contributes to _____.

a)

elbow, abduction, adduction

b)

elbow, adduction, abduction

c)

wrist, abduction, adduction

d)

wrist, adduction, abduction

20.

All of the muscles of the anterior forearm are innervated by the _____ nerve except half of ______ and ____, which are innervated by the _____ nerve

Don't type the word 'nerve', just the name will suffice.

(a)  

21.

Which of the following joints does flexor digitorum superficialis NOT contribute to flexion of?

a)

Distal interphalangeal joints

b)

Proximal interphalangeal joints

c)

Elbow joint

d)

Metacarpophalangeal joints

e)

Wrist joint

22.

A) Between the ulna and radius exists the (a)   membrane

B) True or false? Adductor pollicis exists deep to the long flexor tendons and superficial to the lumbrical muscles.

You can type just 'T' or 'F' if you would like.

23.

Mark the boundaries of the cubital fossa. Recall that the roof is made of skin & _____ fascia - is it deep or superficial? Answer this part of the question in your head and check the answer explanation to see if you are correct!

Categorize the following

Medial epicondyle of the humerus

Lateral epicondyle of the humerus

Pronator Teres

Brachioradialis

Supinator muscle

Brachialis

Floor
Lateral boundary
Superior boundary
Medial boundary
24.

The carpal tunnel contains which of the following muscles?

a)

Flexor pollicis longus

b)
Flexor digitorum superficialis
c)

Flexor digitorum profundus

d)
Flexor carpi radialis
e)

Flexor carpi ulnaris

25.

Which of the following structures DO NOT travel through the cubital fossa?

a)
Radial nerve
b)

Bifurcation of the brachial artery

c)

Tendon of biceps brachii

d)

Ulnar nerve

e)

Median nerve

26.

______, a muscle in the deep group of the anterior forearm originates on the _____ & inserts on the _____. Its sole action is to pronate the forearm. When typing the name of this muscle, type the FULL name.

(a)  

27.

The _____ nerve innervates the deep distal muscles of the anterior forearm and is a branch of the _____ nerve.

Type the full name of the nerve WITHOUT typing the word 'nerve'.

(a)  

28.

The (a)   is a band distal on the upper limb that spans from the medial carpal bones to the lateral carpal bones.

29.

The ______ is made up of the flexor retinaculum and the carpal bones; its syndrome is due to pinching of / pressure on the _____ nerve that it contains within it.

(a)  

30.

The median nerve travels _____ the retinaculum and the ulnar nerve travels _____ the retinaculum. The tendons of flexor digitorum superficialis & flexor digitorum profundus travel _____ to the flexor retinaculum to make their way to the palm and eventually their distal attachments.

a)

over/superficial to, under/deep to, over/superficial to

b)

under/deep to, over/superficial to, over/superficial to

c)

over/superficial to, under/deep to, under/deep to

d)

under/deep to, over/superficial to, under/deep to

31.

A) The anterior interosseus nerve of the median nerve appears _____ the median nerve travels distally under the retinaculum.

B) In anatomical position, supinator is oriented _____ whereas in pronated position, it is oriented _____

a)

before, linearly, diagonally

b)

after, diagonally, linear

c)

after, linearly, diagonally

d)

before, diagonally, linear

32.

A) Supinator is innervated by the​ (a)   .

B) The ​ (b)   exists on the anterior surface of flexor digitorum profundus and deep to flexor carpi ulnaris.

C) The ​ (c)   cruises along the deep aspect of the hand.

Choose from the below words
deep branch of the radial nerve
anterior interosseus nerve
median nerve
ulnar nerve
superficial branch of the radial nerve
superficial branch of the ulnar nerve
deep branch of the ulnar nerve
radial nerve
recurrent branch of the median nerve
33.

Brachioradialis is an _____ on the forearm and innervated by the _____ nerve.

a)

extensor; median

b)

flexor; median

c)

extensor; radial

d)
extensor; ulnar
e)
flexor; radial
34.

The only muscle innervated by the superficial branch of the ulnar nerve is (a)   , which supplies motor innervation to this muscle despite being mainly cutaneous.

35.

Which of the following nerves innervate the three muscles associated with the thenar eminence (flexor pollicis brevis, abductor pollicis brevis, & opponens pollicis brevis)?

a)

Superficial branch of the ulnar nerve

b)

Deep branch of the ulnar nerve

c)

Recurrent branch of the median nerve

d)

Median nerve

e)

Anterior interosseus nerve

36.

The _ dorsal and _ palmar ______ muscles help in abduction & adduction of the digits - dorsal with __duction and palmar with __duction.

(Just type type ab or ad, not the full word)

(a)  

37.

The three muscles of the hypothenar eminence are the flexor, abductor, and opponens _____. They are associated with digit _ (type the number only). The three muscles of the thenar eminence are the flexor, abductor, and opponens _____. They are associated with digit _ (type the number only).

(a)  

38.

How does the radial nerve get to the posterior arm to innervate extensors of the forearm? I.e., how does the radial nerve travel to the posterior forearm?

(a)