Question 1

Which one of these tendons shares a synovial sheath with another tendon
A)Extensor indicis
B)APL
C)FCR
D)FPL
E)ECRL

Accepted Answer

The extensor indicis shares a synovial sheath with the extensor digitorum in the dorsal compartment of the wrist, which is unique among the options provided.

Question 2

The midpalmar space
A)Always contains the 1st lumbrical
B)Is floored by the 2nd and 3rd metacarpal spaces
C)Usually contains the flexor tendons to the II finger
D)Communicates with the ulnar 3 lumbrical canals
E)Is not limited proximally

Accepted Answer

D

Question 3

All the following concerning FDS are true except
A)Arises from the common flexor origin
B)Forms the upper limit of the space of Parona
C)The middle and ring finger tendon are more superficial than the index and middle finger
D)Tendons inserts into the base of the distal phalanx
E)The median nerve is on its deep surface

Accepted Answer

The tendons of the flexor digitorum superficialis (FDS) insert into the middle phalanges, not the base of the distal phalanges.

Question 4

The long head of the biceps
A)Separates the radial nerve from the humerus
B)Arises from the infraglenoid tubercle
C)Is supplied by the median n
D)A bursa separates its tendon from the radial tuberosity
E)Is intracapsular in the shoulder joint

Accepted Answer

The long head of the biceps is intracapsular in the shoulder joint, meaning it is located within the joint capsule. This is a unique feature as most tendons are extracapsular.

Question 5

the extensor expansions of the fingers
A)form the posterior part of the capsule of the MCPJ
B)central slip passes to the terminal phalanx
C)retinacular ligaments are attached near the base of the proximal phalanx
D)the lumbricals attach more proximal than the interossei
E)the extensor expansion is broadest over the middle phalanx

Accepted Answer

The answer of the extensor expansions of the fingers
A)form the...

Question 6

Compression of structures in the carpal tunnel usually results in
A)Weakness of forearm flexors
B)Weakness of flexion of the terminal phalanx of the thumb
C)Weakness of the interossei mm
D)Unaffected sensation on the palmar surface of the little finger
E)Weakness of all the lumbrical muscles

Accepted Answer

Compression of structures in the carpal tunnel affects the median nerve, which does not innervate the palmar surface of the little finger; this area is innervated by the ulnar nerve.

Question 7

Regarding the innervation of the hand
A)Palmar branch of the medial nerve passes under the flexor retinaculum
B)The ulnar 1 ½ fingers are supplied by the deep branch of the ulna nerve
C)The deep branch of the ulna nerve supplies the interossei mm
D)The common palmar digital nerve lies superficial to the palmar arch
E)Carpal tunnel syndrome results in the loss of flexion of the IPJ of thumb

Accepted Answer

The deep branch of the ulnar nerve indeed supplies the interossei muscles, which are responsible for the movements of the fingers such as adduction and abduction.

Question 8

With regard to the anatomical snuff box
A)The basilic vein originates in it
B)The EPL tendon forms its ulnar border
C)The radial artery makes up part of its roof
D)The APB tendon forms its radial border
E)Scaphoid and triquetrum are palpable in its floor

Accepted Answer

The anatomical snuff box is bordered by the extensor pollicis longus (EPL) tendon on the ulnar side. The radial artery runs through it, but does not form the roof. The abductor pollicis longus (APL) and extensor pollicis brevis (EPB) form the radial border. The scaphoid and trapezium are palpable in its floor, not the triquetrum.

Question 9

The annular ligament of the radius
A)Is covered by synovium
B)Is attached to the head of the radius
C)Is attached to the margins of the radial notch
D)Clasps the head, neck and shaft of the radius
E)Is extracapsular to the elbow joint

Accepted Answer

The annular ligament of the radius is attached to the margins of the radial notch of the ulna.

Question 10

Rotator cuff muscles include
A)Subclavius
B)Teres minor
C)Pectoralis major
D)Teres major
E)Deltoid

Accepted Answer

The answer of Rotator cuff muscles include
A)Subclavius
B)Teres minor
C)Pectoralis major
D)Teres major
E)Deltoid...

Question 11

Regarding the synovial flexor sheaths in the hand and wrist, which is false
A)They surround flexor tendons in the carpal tunnel
B)The superficial and deep flexors are invested with a common synovial sheath
C)The common flexor sheaths can communicate with FPL sheath in some people
D)For the II, III and IV fingers a separate synovial sheath lies the fibrous sheath over the phalanges
E)The sheath is the origin of the lumbricals

Accepted Answer

The lumbricals originate from the tendons of the flexor digitorum profundus, not from the synovial sheath.

Question 12

The axillary nerve
A)Supplies the rotator cuff
B)Is a branch of the medial cord of the brachial plexus
C)Exits the axilla through the quadrangular space
D)Is accompanied by the profunda brachii artery
E)Is derived from C7,C8

Accepted Answer

The axillary nerve exits the axilla through the quadrangular space, which is an anatomical passageway in the shoulder region.

Question 13

The ulna nerve
A)Has C8, T1 fibres only
B)Is sensory to the medial aspect of the forearm and hand
C)Supplies the ulnar part of FDP
D)Traverses the carpal tunnel lateral to the tendon of FCU
E)Accompanies the brachial artery in the cubital fossa

Accepted Answer

The ulnar nerve supplies the ulnar part of the flexor digitorum profundus (FDP). It does not have only C8, T1 fibers, is not sensory to the medial forearm and hand (it is sensory to the medial hand but not the forearm), does not traverse the carpal tunnel, and does not accompany the brachial artery in the cubital fossa.

Question 14

The axillary artery
A)Arrives at the lateral border of scalenus anterior
B)Is divided into 3 parts by its relationship to pectoralis major
C)Becomes the brachial artery at the inferior border of teres minor
D)Has 3 branches from its 3rd part
E)Is clasped by the trunks of the brachial plexus at its 2nd part

Accepted Answer

The axillary artery has three parts, and the third part typically gives rise to three branches: the subscapular artery, the anterior circumflex humeral artery, and the posterior circumflex humeral artery.

Question 15

The following structures are relevant to the cubital fossa except
A)Brachialis
B)Pronator quadratus
C)Radial artery
D)Median nerve
E)Supinator

Accepted Answer

Pronator quadratus is located in the distal forearm, not in the cubital fossa.

Question 16

FCR tendon
A)Gives a slip of insertion into the scaphoid
B)Contains a sesamoid bone
C)Lies medial to the median nerve at the wrist
D)Lives in the groove of the hamate at the wrist
E)Has fleshy fibres on its radial side until immediately proximal to the carpal tunnel

Accepted Answer

The answer of FCR tendon
A)Gives a slip of insertion into...

Question 17

The radius
A)Articulates with the trochlea of the humerus in a synovial ball and socket joint
B)Has Lister's tubercle on its posterior aspect
C)Provides insertion of the brachioradialis at the tip of the styloid process
D)Articulates predominantly with the triquetral and the lunate
E)Provides insertion for brachialis muscle a the radial tubercle

Accepted Answer

Lister's tubercle is a bony prominence on the posterior aspect of the distal radius.

Question 18

In the upper limb
A)The upper trunk of the brachial plexus is prone to injury by forceful depression of the shoulder and results in Erb's palsy
B)Median nerve compression in the axilla may result in 'Saturday night palsy'
C)The unla nerve is commonly injured in fractures of the surgical neck of humerus
D)Musculocutaneous nerve is prone to injury in fractures of the lower 1/3 of the humerus
E)The radial nerve is most commonly injured in supracondylar fractures

Accepted Answer

The upper trunk of the brachial plexus can be injured by forceful depression of the shoulder, leading to Erb's palsy, characterized by weakness in the arm and shoulder.

Question 19

Rotation of the scapula is primarily produced by
A)Rhomboids
B)Teres major
C)trapezius
D)Latissimus dorsi
E)Levator scapulae

Accepted Answer

The trapezius muscle is primarily responsible for rotation of the scapula, especially the upward rotation necessary for raising the arm above the head.

Question 20

In the hand
A)The tendon of extensor indicis is usually split into 2
B)The skin over the thenar eminence is supplied by the muscular recurrent branch of the median nerve after it supplies the thenar muscles
C)The ulnar nerve supplies palmaris brevis
D)Adductor pollicis lies deep to the other 2 muscles of the thenar eminence
E)The digital arteries lie on the palmar side of the nerve

Accepted Answer

The answer of In the hand
A)The tendon of extensor indicis...

Quiz 7: Anatomy and Function of Upper Limb Structures

Which one of these tendons shares a synovial sheath with another tendon

The midpalmar space

All the following concerning FDS are true except

The long head of the biceps

the extensor expansions of the fingers

Compression of structures in the carpal tunnel usually results in

Regarding the innervation of the hand

With regard to the anatomical snuff box

The annular ligament of the radius

Rotator cuff muscles include

Regarding the synovial flexor sheaths in the hand and wrist, which is false

The axillary nerve

The ulna nerve

The axillary artery

The following structures are relevant to the cubital fossa except

FCR tendon

The radius

In the upper limb

Rotation of the scapula is primarily produced by

In the hand