Upper Limb Anatomy: Interactive Learning Quizzes for Medical Students

Question 1

Which muscle is NOT innervated by the brachial plexus?

Accepted Answer

Gastrocnemius

Answer

Deltoid

Answer

Pectoralis major

Question 2

Which muscle is NOT a part of the rotator cuff?

Accepted Answer

Latissimus dorsi

Answer

Supraspinatus

Answer

Infraspinatus

Answer

Teres minor

Question 3

Which nerve provides sensory innervation to the skin overlying the deltoid muscle?

Accepted Answer

Axillary nerve

Answer

Musculocutaneous nerve

Answer

Radial nerve

Answer

Median nerve

Question 4

What is the origin of the median nerve?

Accepted Answer

C6-T1 nerve roots

Answer

C5-C8 nerve roots

Answer

L1-L5 nerve roots

Answer

S1-S3 nerve roots

Question 5

Which bone articulates with both the radius and the ulna?

Accepted Answer

Humerus

Answer

Scapula

Answer

Clavicle

Answer

Carpals

Question 6

What is the joint between the first metacarpal and the trapezium bone called?

Accepted Answer

Carpometacarpal joint

Answer

Metacarpophalangeal joint

Answer

Interphalangeal joint

Answer

Radiocarpal joint

Question 7

Which muscle group flexes the fingers at the metacarpophalangeal joints?

Accepted Answer

Flexors

Answer

Extensors

Answer

Abductors

Answer

Adductors

Question 8

Which artery passes along the medial epicondyle of the humerus?

Accepted Answer

Ulnar artery

Answer

Brachial artery

Answer

Radial artery

Answer

Interosseous artery

Question 9

Which muscle is primarily responsible for flexing the elbow joint?

Accepted Answer

Biceps brachii

Answer

Triceps brachii

Answer

Brachioradialis

Answer

Supinator

Question 10

Which nerve is responsible for providing sensory innervation to the thenar eminence?

Accepted Answer

Median nerve

Answer

Ulnar nerve

Answer

Radial nerve

Answer

Musculocutaneous nerve

Question 11

Which anatomical region of the upper limb contains the axilla?

Accepted Answer

Shoulder

Answer

Arm

Answer

Forearm

Answer

Hand

Question 12

Which muscle forms the lateral boundary of the axilla and is involved in abduction of the arm?

Accepted Answer

Deltoid

Answer

Pectoralis major

Answer

Clavicle

Answer

Scapula

Question 13

Which nerve provides sensory innervation to the little finger and the medial half of the ring finger?

Accepted Answer

Ulnar nerve

Answer

Median nerve

Answer

Radial nerve

Answer

Axillary nerve

Question 14

Which muscle is responsible for pronating the forearm?

Accepted Answer

Pronator teres

Answer

Supinator

Answer

Flexor carpi radialis

Answer

Triceps brachii

Question 15

Which anatomical landmark separates the axilla from the arm?

Accepted Answer

Pectoralis major tendon

Answer

Coracobrachialis muscle

Answer

Teres major muscle

Answer

Clavicle

Question 16

Describe the specific contributions of the median, ulnar, and radial nerves to the innervation of the intrinsic muscles of the hand.

Accepted Answer

The median nerve innervates the abductor pollicis brevis, opponens pollicis, and the first and second lumbricals.

Accepted Answer

The ulnar nerve innervates the abductor digiti minimi, flexor digiti minimi brevis, and the third and fourth lumbricals.

Answer

The radial nerve innervates the extensor carpi radialis longus and brevis, and the brachioradialis.

Answer

All of the intrinsic hand muscles are innervated by the median nerve.

Question 17

A patient presents with a fractured clavicle. Which anatomical structures are at risk of injury due to this fracture?

Accepted Answer

Subclavian artery

Accepted Answer

Brachial plexus

Answer

Pneumothorax

Answer

Rotator cuff

Question 18

Describe the relationship between the axillary nerve, brachial artery, and humerus in the axilla.

Accepted Answer

Axillary nerve anterior to the brachial artery, with both structures posterior to the humerus.

Answer

Axillary nerve posterior to the brachial artery, with both structures anterior to the humerus.

Answer

Brachial artery posterior to the axillary nerve, with both structures anterior to the humerus.

Question 19

Which of the following is the main function of the pronator teres and supinator muscles?

Accepted Answer

Pronate and supinate the forearm

Answer

Flex and extend the elbow

Answer

Radially and ulnarly deviate the wrist

Answer

Palmarly and dorsally flex the wrist

Question 20

Identify the muscle(s) responsible for flexing the elbow joint:

Accepted Answer

Biceps brachii

Accepted Answer

Brachialis

Answer

Triceps brachii

Answer

Deltoid

Question 21

Identify the muscle primarily responsible for flexing the forearm at the elbow joint:

Accepted Answer

Biceps brachii

Answer

Triceps brachii

Answer

Brachioradialis

Answer

Supinator

Question 22

Which bone forms the lateral boundary of the axilla?

Accepted Answer

Humerus

Answer

Clavicle

Answer

Scapula

Answer

Ribs

Question 23

Specify the nerve that innervates the deltoid muscle:

Accepted Answer

Axillary nerve

Answer

Median nerve

Answer

Radial nerve

Answer

Ulnar nerve

Question 24

Identify the muscle responsible for pronating the forearm:

Accepted Answer

Pronator teres

Answer

Biceps brachii

Answer

Supinator

Answer

Brachioradialis

Question 25

Which bone articulates with the radius and ulna to form the elbow joint?

Accepted Answer

Humerus

Answer

Clavicle

Answer

Scapula

Answer

Carpals

Question 26

Identify the nerve that provides sensory innervation to the medial side of the forearm:

Accepted Answer

Ulnar nerve

Answer

Median nerve

Answer

Radial nerve

Answer

Axillary nerve

Question 27

Which structure separates the axilla from the neck?

Accepted Answer

Clavicle

Answer

Sternum

Answer

Ribs

Answer

Scapula

Question 28

Identify the muscle group primarily responsible for abducting the arm at the shoulder joint:

Accepted Answer

Deltoid muscle

Answer

Rotator cuff muscles

Answer

Pectoralis major muscle

Answer

Latissmus dorsi muscle

Question 29

Which of the following is **NOT** a rotator cuff muscle?

Accepted Answer

Biceps brachii

Answer

Supraspinatus

Answer

Infraspinatus

Answer

Teres minor

Question 30

Which of the following muscles is responsible for lifting the arm away from the body (abduction)?

Accepted Answer

Deltoid

Answer

Triceps brachii

Answer

Biceps brachii

Answer

Brachioradialis

Question 31

Identify the bone that forms the lateral border of the armpit (axilla).

Accepted Answer

Humerus

Answer

Ulna

Answer

Scapula

Answer

Clavicle

Question 32

Which of the following is a function of the supraspinatus muscle?

Accepted Answer

Abduction of the arm

Answer

Flexion of the elbow

Answer

Pronation of the forearm

Answer

Extension of the wrist

Question 33

Identify the tendon that passes through the carpal tunnel in the wrist.

Accepted Answer

Flexor carpi radialis tendon

Answer

Patellar tendon

Answer

Biceps femoris tendon

Answer

Triceps brachii tendon

Question 34

Which of the following nerves provides sensation to the outer (lateral) side of the hand?

Accepted Answer

Radial nerve

Answer

Median nerve

Answer

Musculocutaneous nerve

Answer

Ulnar nerve

Question 35

Which of the following is **NOT** a muscle of the rotator cuff?

Accepted Answer

Latissimus dorsi

Answer

Infraspinatus

Answer

Supraspinatus

Answer

Teres minor

Question 36

Which artery supplies the axillary region?

Accepted Answer

Axillary artery

Answer

Ulnar artery

Answer

Brachial artery

Answer

Radial artery

Question 37

What is the name of the joint between the humerus and **radius**?

Accepted Answer

Radial-humeral joint

Answer

Wrist joint

Answer

Elbow joint

Answer

Carpal-metacarpal joint

Question 38

Which of the following muscles is the most powerful **flexor** of the wrist?

Accepted Answer

Flexor carpi radialis

Answer

Brachioradialis

Answer

Flexor carpi ulnaris

Answer

Palmaris longus

Question 39

What is the name of the bony prominence on the **lateral** aspect of the elbow?

Accepted Answer

Lateral epicondyle of the humerus

Answer

Medial epicondyle of the humerus

Answer

Radial head

Answer

Olecranon process of the ulna

Question 40

Which of the following is **NOT** a function of the brachial plexus?

Accepted Answer

Innervating the abdominal muscles

Answer

Innervating the upper limb

Answer

Providing sensory input from the hand

Answer

Controlling movement of the neck

Question 41

What is the name of the membrane that separates the muscles of the anterior and posterior compartments of the **forearm**?

Accepted Answer

Interosseous membrane

Answer

Tendon

Answer

Fascia lata

Answer

Aponeurosis

Question 42

Which of the following bones **does not** articulate with the carpal bones?

Accepted Answer

Humerus

Answer

Ulna

Answer

Scaphoid

Answer

Radius

Question 43

Which nerve innervates the **extensor** muscles of the forearm?

Accepted Answer

Radial nerve

Answer

Brachial nerve

Answer

Median nerve

Answer

Ulnar nerve

Question 44

Which of the following muscles is the primary abductor of the arm at the shoulder joint?

Accepted Answer

Deltoid

Answer

Pectoralis major

Answer

Biceps brachii

Answer

Triceps brachii

Question 45

Which bone articulates with the acromion to form the acromioclavicular joint?

Accepted Answer

Clavicle

Answer

Scapula

Answer

Radius

Answer

Humerus

Question 46

Which nerve innervates the majority of the extensor muscles of the forearm?

Accepted Answer

Radial nerve

Answer

Median nerve

Answer

Musculocutaneous nerve

Answer

Ulnar nerve

Question 47

Which blood vessel provides the primary blood supply to the muscles of the posterior compartment of the forearm?

Accepted Answer

Posterior interosseous artery

Answer

Ulnar artery

Answer

Anterior interosseous artery

Answer

Radial artery

Question 48

Which bone forms the lateral projection of the elbow?

Accepted Answer

Lateral epicondyle of the humerus

Answer

Trochlea of the humerus

Answer

Head of the radius

Answer

Medial epicondyle of the humerus

Question 49

Which ligament connects the head of the radius to the coronoid process of the ulna?

Accepted Answer

Annular ligament

Answer

Radial collateral ligament

Answer

Flexor retinaculum

Answer

Ulnar collateral ligament

Question 50

Which nerve provides sensory innervation to the skin over the thenar eminence?

Accepted Answer

Median nerve

Answer

Radial nerve

Answer

Ulnar nerve