Nerves And Vessels Flashcards
What is the main nerve responsible for the innervation of the deltoid muscle?
Axillary nerve
True or False: The median nerve is primarily responsible for the flexion of the wrist.
True
Which artery is the main blood supply for the upper limb?
Subclavian artery
Fill in the blank: The _____ nerve innervates the muscles of the anterior compartment of the arm.
Musculocutaneous
What are the two major branches of the brachial plexus?
Medial and lateral cords
Which nerve is commonly associated with carpal tunnel syndrome?
Median nerve
True or False: The radial nerve travels in the radial groove of the humerus.
True
What is the primary function of the ulnar nerve?
Innervation of intrinsic hand muscles
Which artery branches off the axillary artery and supplies the shoulder region?
Thoracoacromial artery
What is the clinical significance of the ‘Saturday Night Palsy’?
It refers to radial nerve palsy due to prolonged pressure on the nerve.
Fill in the blank: The _____ artery is a continuation of the subclavian artery at the lateral border of the first rib.
Axillary
Which nerve arises from the posterior cord of the brachial plexus?
Radial nerve
What is the anatomical relation of the median nerve in the arm?
It runs medial to the brachial artery.
True or False: The ulnar nerve runs posterior to the medial epicondyle of the humerus.
True
What muscle group is innervated by the radial nerve?
Extensors of the forearm and hand
Fill in the blank: The _____ artery is the terminal branch of the axillary artery.
Brachial
What is the clinical significance of the median nerve in the forearm?
It is involved in wrist flexion and sensation in the hand.
Which nerve is responsible for the sensation of the skin over the lateral aspect of the forearm?
Musculocutaneous nerve
True or False: The brachial plexus is formed by the ventral/ anerior rami of C5-T1 spinal nerves.
True
What is the pathway of the radial nerve in relation to the humerus?
It wraps around the mid-shaft of the humerus.
Fill in the blank: The _____ nerve provides motor innervation to the flexor carpi ulnaris muscle.
Ulnar
Which artery supplies blood to the anterior compartment of the arm?
Brachial artery
What is the primary role of the thoracodorsal nerve?
Innervation of the latissimus dorsi muscle
True or False: The axillary nerve also provides sensory innervation to the skin over the deltoid muscle.
True
Which nerve is responsible for the ‘claw hand’ deformity?
Ulnar nerve
Fill in the blank: The _____ artery and vein accompany the median nerve in the forearm.
Brachial
What are the terminal branches of the brachial plexus?
Musculocutaneous, median, ulnar, radial, and axillary nerves
Which nerve is most commonly injured in shoulder dislocations?
Axillary nerve
True or False: The median nerve passes through the carpal tunnel.
True
What is the main arterial supply of the hand?
Superficial and deep palmar arches
Fill in the blank: The _____ nerve supplies the thenar muscles of the hand.
Median
Which artery branches off the brachial artery and supplies the posterior compartment of the arm?
Profunda brachii artery
What is the clinical presentation of a median nerve injury?
Inability to flex the thumb and index finger.
True or False: The subclavian artery becomes the brachial artery after passing the teres major muscle.
False
Which nerve innervates the serratus anterior muscle?
Long thoracic nerve
Fill in the blank: The _____ nerve is responsible for the sensory innervation of the palm’s medial side.
Ulnar
What is the relationship of the brachial plexus to the axillary artery?
It is located medial to the axillary artery.
True or False: The radial nerve can be injured by improper use of crutches.
True
