Muscles of the Upper Limb: Interactive Learning Quizzes for Medical Students

Question 1

Which muscle originates from the medial epicondyle of the humerus and inserts into the radius?

Accepted Answer

Brachioradialis

Answer

Biceps brachii

Answer

Triceps brachii

Answer

Supinator

Question 2

Which nerve innervates the deltoid muscle?

Accepted Answer

Axillary nerve

Answer

Musculocutaneous nerve

Answer

Radial nerve

Answer

Median nerve

Question 3

Which muscle group includes the pectoralis major and minor muscles?

Accepted Answer

Chest muscles

Answer

Back muscles

Answer

Shoulder muscles

Answer

Arm muscles

Question 4

Which of the following is NOT a function of the supraspinatus muscle?

Accepted Answer

Extension of the arm

Answer

Abduction of the arm

Answer

Lateral rotation of the arm

Answer

Stabilization of the shoulder joint

Question 5

Which nerve innervates the muscles of the anterior compartment of the forearm?

Accepted Answer

Median nerve

Answer

Radial nerve

Answer

Ulnar nerve

Answer

Axillary nerve

Question 6

Which muscle group is responsible for extending the fingers?

Accepted Answer

Extensor muscles

Answer

Flexor muscles

Answer

Abductor muscles

Answer

Adductor muscles

Question 7

Which muscle originates from the olecranon process of the ulna and inserts into the base of the thumb?

Accepted Answer

Extensor carpi ulnaris

Answer

Flexor carpi ulnaris

Answer

Flexor carpi radialis

Answer

Extensor carpi radialis longus

Question 8

What is the site of origin of the brachialis muscle?

Accepted Answer

Humeral shaft

Answer

Deltoid tuberosity

Answer

Coracoid process

Answer

Clavicle

Question 9

Which nerve provides innervation to the brachioradialis muscle?

Accepted Answer

Radial nerve

Answer

Median nerve

Answer

Axillary nerve

Answer

Ulnar nerve

Question 10

Identify the primary action performed by the pronator teres muscle.

Accepted Answer

Forearm pronation

Answer

Flexion of the forearm

Answer

Forearm supination

Answer

Extension of the forearm

Question 11

Specify the function of the supinator muscle.

Accepted Answer

Forearm supination

Answer

Flexion of the forearm

Answer

Forearm pronation

Answer

Extension of the forearm

Question 12

Which nerve is responsible for innervating the deltoid muscle?

Accepted Answer

Axillary nerve

Answer

Musculocutaneous nerve

Answer

Radial nerve

Answer

Median nerve

Question 13

Which muscle group in the upper limb receives its primary innervation from the radial nerve?

Accepted Answer

Extensor muscles of the forearm

Answer

Flexor muscles of the forearm

Answer

Intrinsic muscles of the hand

Question 14

Which muscle is the primary abductor of the arm at the shoulder joint?

Accepted Answer

Deltoid

Answer

Supraspinatus

Answer

Infraspinatus

Answer

Teres minor

Question 15

Which nerve innervates the supraspinatus muscle, allowing for shoulder abduction?

Accepted Answer

Suprascapular nerve

Answer

Axillary nerve

Answer

Musculocutaneous nerve

Answer

Radial nerve

Question 16

Identify the muscle responsible for pronating the forearm at the radioulnar joints:

Accepted Answer

Pronator teres

Answer

Supinator

Answer

Brachioradialis

Answer

Biceps brachii

Question 17

Identify the muscle group responsible for flexing the fingers at the metacarpophalangeal joints and extending them at the interphalangeal joints:

Accepted Answer

Flexor digitorum superficialis and profundus

Answer

Extensor digitorum

Answer

Lumbricals

Answer

Interossei

Question 18

Which muscle supinates the forearm at the radioulnar joints?

Accepted Answer

Supinator

Answer

Pronator teres

Answer

Brachioradialis

Answer

Triceps brachii

Question 19

Identify the muscle that flexes the thumb by originating from the medial epicondyle of the humerus:

Accepted Answer

Flexor pollicis longus

Answer

Flexor carpi radialis

Answer

Palmaris longus

Answer

Flexor carpi ulnaris

Question 20

Which nerve innervates the biceps brachii muscle, allowing for elbow flexion?

Accepted Answer

Musculocutaneous nerve

Answer

Axillary nerve

Answer

Suprascapular nerve

Answer

Radial nerve

Question 21

Identify the muscle group responsible for extending the elbow joint:

Accepted Answer

Triceps brachii

Answer

Biceps brachii

Answer

Brachioradialis

Answer

Supinator

Question 22

Which forearm muscle is primarily responsible for flexing the wrist joint?

Accepted Answer

Flexor carpi radialis

Answer

Biceps brachii

Answer

Triceps brachii

Answer

Brachioradialis

Question 23

Which muscle of the forearm is innervated by the median nerve?

Accepted Answer

Pronator teres

Answer

Supinator

Answer

Brachioradialis

Answer

Triceps brachii

Question 24

Which bone is the insertion point for the deltoid muscle?

Accepted Answer

Humerus

Answer

Clavicle

Answer

Scapula

Answer

Radius

Question 25

Which forearm muscle is responsible for supinating the forearm?

Accepted Answer

Supinator

Answer

Biceps brachii

Answer

Brachioradialis

Answer

Flexor carpi ulnaris

Question 26

Which muscle originates from the coracoid process of the scapula?

Accepted Answer

Biceps brachii

Answer

Pectoralis major

Answer

Triceps brachii

Answer

Deltoid

Question 27

Which muscle is a primary mover of shoulder flexion?

Accepted Answer

Pectoralis major

Answer

Deltoid

Answer

Infraspinatus

Answer

Triceps brachii

Question 28

Which muscle of the forearm is innervated by the ulnar nerve?

Accepted Answer

Flexor carpi ulnaris

Answer

Anconeus

Answer

Brachioradialis

Answer

Pronator teres

Question 29

Which muscle is primarily responsible for the elevation (abduction) of the arm at the shoulder joint?

Accepted Answer

Deltoid

Answer

Trapezius

Answer

Biceps brachii

Answer

Triceps brachii

Question 30

Which nerve is responsible for the motor innervation of the brachioradialis muscle?

Accepted Answer

Radial nerve

Answer

Median nerve

Answer

Ulnar nerve

Answer

Musculocutaneous nerve

Question 31

Which of the forearm muscles is involved in the pronation (rotation of the forearm to face downwards) movement?

Accepted Answer

Pronator teres

Answer

Supinator

Answer

Flexor carpi radialis

Answer

Extensor carpi ulnaris

Question 32

What is the origin of the flexor carpi ulnaris muscle, which is involved in flexing the wrist?

Accepted Answer

Ulnar shaft

Answer

Medial epicondyle of the humerus

Answer

Radius

Answer

Clavicle

Question 33

Which muscle group is responsible for flexing the fingers at the interphalangeal joints?

Accepted Answer

Flexor digitorum superficialis

Answer

Extensor digitorum

Answer

Adductor pollicis

Answer

Abductor digiti minimi

Question 34

What is the insertion point of the triceps brachii muscle, which extends the elbow?

Accepted Answer

Olecranon process of the ulna

Answer

Deltoid tuberosity

Answer

Radial head

Answer

Capitate bone

Question 35

What is the primary action of the supinator muscle in the forearm?

Accepted Answer

Supinates the forearm

Answer

Pronates the forearm

Answer

Flexes the elbow

Answer

Extends the wrist

Question 36

Which of the following muscles is primarily responsible for flexing the elbow joint?

Accepted Answer

Biceps brachii

Answer

Triceps brachii

Answer

Brachioradialis

Answer

Deltoid

Question 37

Which muscle is primarily responsible for flexing the elbow joint?

Accepted Answer

Biceps brachii

Answer

Triceps brachii

Answer

Brachioradialis

Answer

Supinator

Question 38

Which nerve innervates the deltoid muscle?

Accepted Answer

Axillary nerve

Answer

Radial nerve

Answer

Median nerve

Answer

Ulnar nerve

Question 39

Which muscle primarily abducts the arm at the shoulder joint?

Accepted Answer

Deltoid

Answer

Pectoralis major

Answer

Latissimus dorsi

Answer

Trapezius

Question 40

What type of joint is the elbow joint?

Accepted Answer

Hinge joint

Answer

Ball-and-socket joint

Answer

Pivot joint

Answer

Condyloid joint

Question 41

Which muscle group is responsible for both flexion and supination of the forearm?

Accepted Answer

Extensor-supinator group

Answer

Flexor-pronator group

Answer

Abductor-adductor group

Answer

Rotator cuff group

Question 42

Where does the triceps brachii muscle insert?

Accepted Answer

Olecranon process of the ulna

Answer

Radial tuberosity of the radius

Answer

Medial epicondyle of the humerus

Answer

Acromion process of the scapula

Question 43

What is the primary function of the biceps brachii muscle?

Accepted Answer

Flexion of the elbow joint and supination of the forearm

Answer

Extension of the elbow joint and pronation of the forearm

Answer

Abduction of the arm at the shoulder joint

Answer

Adduction of the arm at the shoulder joint

Question 44

Which muscle is the primary extensor of the elbow joint and is innervated by the radial nerve?

Accepted Answer

Triceps brachii

Answer

Biceps brachii

Answer

Pronator teres

Answer

Brachialis

Question 45

A patient presents with difficulty turning their palm upwards (supination). Which muscle is most likely affected?

Accepted Answer

Supinator

Answer

Brachioradialis

Answer

Pronator teres

Answer

Flexor carpi radialis

Question 46

Which of the following muscles is NOT part of the rotator cuff group?

Accepted Answer

Teres major

Answer

Supraspinatus

Answer

Subscapularis

Answer

Infraspinatus

Question 47

Which nerve provides innervation to the majority of the flexor muscles in the forearm?

Accepted Answer

Median nerve

Answer

Musculocutaneous nerve

Answer

Radial nerve

Answer

Ulnar nerve

Question 48

Which muscle extends the wrist and is innervated by the radial nerve?

Accepted Answer

Extensor carpi radialis longus

Answer

Palmaris longus

Answer

Flexor carpi ulnaris

Answer

Flexor carpi radialis

Question 49

Which muscle is the primary adductor of the arm at the shoulder joint?

Accepted Answer

Pectoralis major

Answer

Trapezius

Answer

Deltoid

Answer

Supraspinatus

Question 50

A patient presents with difficulty abducting their arm at the shoulder joint. Which muscle is most likely affected?

Accepted Answer

Supraspinatus

Answer

Infraspinatus

Answer

Deltoid

Answer

Teres minor

Question 51

Which nerve primarily innervates the muscles responsible for flexing the elbow joint?

Accepted Answer

Musculocutaneous nerve

Answer

Median nerve

Answer

Radial nerve

Answer

Ulnar nerve

Question 52

A patient with a suspected rotator cuff tear presents with difficulty externally rotating their arm. Which muscle is most likely affected?

Accepted Answer

Infraspinatus

Answer

Teres major

Answer

Subscapularis

Answer

Teres minor

Question 53

Which muscle primarily extends the wrist and fingers?

Accepted Answer

Extensor digitorum

Answer

Flexor digitorum superficialis

Answer

Flexor carpi radialis

Answer

Palmaris longus

Question 54

A patient presents with difficulty flexing their fingers at the metacarpophalangeal joint. Which muscle is most likely affected?

Accepted Answer

Flexor digitorum superficialis

Answer

Extensor digitorum

Answer

Flexor carpi ulnaris

Answer

Brachioradialis

Question 55

Which muscle is primarily responsible for pronation of the forearm?

Accepted Answer

Pronator teres

Answer

Biceps brachii

Answer

Brachialis

Answer

Supinator

Question 56

The radial nerve innervates which of the following muscles?

Accepted Answer

Triceps brachii

Answer

Brachialis

Answer

Biceps brachii

Answer

Flexor carpi ulnaris

Question 57

Which muscle originates from the coracoid process of the scapula?

Accepted Answer

Pectoralis minor

Answer

Infraspinatus

Answer

Deltoid

Answer

Teres major

Question 58

A patient presents with difficulty adducting their arm at the shoulder joint. Which muscle is most likely affected?

Accepted Answer

Pectoralis major

Answer

Deltoid

Answer

Subscapularis

Answer

Latissimus dorsi

Question 59

Which of the following muscles is NOT part of the rotator cuff?

Accepted Answer

Teres major

Answer

Infraspinatus

Answer

Supraspinatus

Answer

Subscapularis