Upper Limb Nerves

Question 1

What is the primary nerve that innervates the biceps brachii?

Answer 1

Musculocutaneous nerve

Question 2

True or False: The radial nerve innervates the triceps brachii.

Answer 2

True

Question 3

Fill in the blank: The _____ nerve innervates the deltoid muscle.

Answer 3

Axillary

Question 4

Which artery primarily supplies blood to the pectoralis major?

Answer 4

Thoracoacromial artery

Question 5

What is the function of the suprascapular nerve?

Answer 5

Innervates the supraspinatus and infraspinatus muscles

Question 6

Multiple choice: Which nerve is responsible for wrist extension? A) Ulnar nerve B) Median nerve C) Radial nerve D) Musculocutaneous nerve

Answer 6

C) Radial nerve

Question 7

What muscle is innervated by the median nerve?

Answer 7

Flexor carpi radialis

Question 8

True or False: The ulnar nerve provides innervation to the majority of the intrinsic hand muscles.

Answer 8

True

Question 9

Which artery supplies blood to the forearm flexor muscles?

Answer 9

Ulnar artery

Question 10

Fill in the blank: The _____ nerve innervates the flexor digitorum profundus (medial half).

Answer 10

Ulnar

Question 11

What is the primary blood supply for the supraspinatus muscle?

Answer 11

Suprascapular artery

Question 12

Multiple choice: Which nerve is NOT part of the brachial plexus? A) Median nerve B) Radial nerve C) Femoral nerve D) Ulnar nerve

Answer 12

C) Femoral nerve

Question 13

What muscle does the thoracodorsal nerve innervate?

Answer 13

Latissimus dorsi

Question 14

True or False: The musculocutaneous nerve arises from the lumbar plexus.

Answer 14

False

Question 15

Fill in the blank: The _____ artery is the continuation of the subclavian artery into the arm.

Answer 15

Axillary

Question 16

What is the function of the long thoracic nerve?

Answer 16

Innervates the serratus anterior muscle

Question 17

Multiple choice: Which muscle is primarily responsible for shoulder abduction? A) Pectoralis major B) Deltoid C) Latissimus dorsi D) Teres major

Answer 17

B) Deltoid

Question 18

What nerve innervates the flexor pollicis longus?

Answer 18

Median nerve

Question 19

True or False: The radial nerve also innervates the brachialis muscle.

Answer 19

False

Question 20

Fill in the blank: The _____ nerve innervates the teres minor muscle.

Answer 20

Axillary

Question 21

What is the primary blood supply to the brachialis muscle?

Answer 21

Brachial artery

Question 22

Multiple choice: Which of the following muscles is NOT innervated by the median nerve? A) Pronator teres B) Flexor carpi ulnaris C) Flexor pollicis brevis D) Lumbricals (lateral two)

Answer 22

B) Flexor carpi ulnaris

Question 23

What is the role of the radial nerve in the upper limb?

Answer 23

Innervates the posterior compartment of the arm and forearm

Question 24

True or False: The ulnar nerve passes through the carpal tunnel.

Answer 24

False

Question 25

Fill in the blank: The _____ artery supplies the thumb and lateral aspect of the index finger.

Answer 25

Radial

Question 26

What muscle is innervated by the median nerve and responsible for flexing the wrist?

Answer 26

Flexor carpi radialis

Question 27

Multiple choice: Which artery does the radial artery originate from? A) Subclavian artery B) Brachial artery C) Ulnar artery D) Axillary artery

Answer 27

B) Brachial artery

Question 28

What is the function of the median nerve?

Answer 28

Innervates most of the forearm flexors and thenar muscles

Question 29

True or False: The axillary nerve is responsible for innervating the skin over the shoulder.

Answer 29

True

Question 30

Fill in the blank: The _____ nerve is responsible for innervating the flexor digitorum superficialis.

Answer 30

Median

Question 31

What artery supplies the muscles of the posterior compartment of the arm?

Answer 31

Profunda brachii artery

Question 32

Multiple choice: Which of the following is NOT a branch of the subclavian artery? A) Suprascapular artery B) Axillary artery C) Vertebral artery D) Internal thoracic artery

Answer 32

B) Axillary artery

Question 33

What nerve innervates the opponens pollicis?

Answer 33

Median nerve

Question 34

True or False: The suprascapular nerve arises from the upper trunk of the brachial plexus.

Answer 34

True

Question 35

Fill in the blank: The _____ artery is a direct continuation of the axillary artery past the teres major.

Answer 35

Brachial

Question 36

What is the primary function of the flexor carpi ulnaris?

Answer 36

Flexes and adducts the wrist

Question 37

Multiple choice: Which nerve provides sensory innervation to the skin of the lateral forearm? A) Ulnar nerve B) Axillary nerve C) Musculocutaneous nerve D) Median nerve

Answer 37

C) Musculocutaneous nerve

Question 38

What muscle is primarily innervated by the ulnar nerve?

Answer 38

Flexor carpi ulnaris

Question 39

True or False: The brachial plexus is formed by the ventral rami of spinal nerves C5-T1.

Answer 39

True

Question 40

Fill in the blank: The _____ nerve innervates the intrinsic muscles of the hand.

Answer 40

Ulnar

Question 41

What artery supplies the subscapularis muscle?

Answer 41

Subscapular artery