Dissection Guide Flash Cards
Which nerve innervates the trapezius?
Spinal accessory nerve (cranial nerve XI) 11
What innervates the deltoid? What supplies blood to deltoid?
The axillary nerve and posterior circumflex humeral artery
What nerve innervates the serratus anterior?
Long thoracic
What innervates the latissimus Dorsi?
The thoracodorsal nerve
What nerve innervates the rhomboid muscles and levator scapulae?
Dorsal scapular n
What nerve runs with the brachial artery?
Median nerve
What are the branches of the scapular artery?
Thoracodorsal and circumflex scapular
What are the three terminal branches of the lateral cord?
The lateral pectoral nerve, the lateral contribution to the median nerve, and the musculocutaneous nerve
What does the musculocutaneous nerve branch into?
The lateral cutaneous nerve of the forearm
What are the medial cords terminal branches? How many are there?
5: the medial pectoral nerve, ulnar, medial contribution to the median nerve, the medial antebrachial cutaneous, and medial brachial cutaneous
What are the branches of the posterior cord? How many are there?
5: radial nerve, thoracodorsal nerve, lower subscapular, upper subscapular nerve, and axillary
What innervates the serratus anterior?
Long thoracic nerve
What are the branches of the brachial artery?
Radial and ulnar
What are the two branches of the radial nerve? Where can you find them?
Superficial branch of the radial nerve which accompanied the radial artery.
The deep branch of the radial nerves pierces the supination muscle
What are the superficial flexors of the forearm? How many are there?
5: the probate teres, flexor carpi rafialis, palmarjs longus, flexor carpi ulnaris, and flexor digitorum superficialis
What does the median nerve branch into?
Anterior interosseous nerve
What are the deep flexors muscles of the forearm?
Flexor digitorum profundus, flexor pollicis longus, and pronator quadratus
Where do the motor branches of the ulnar nerve go to?
Flexor carpi ulnaris and the medial half of the flexor digitorum profundus
What are the 3 branches of the ulnar and what do they do?
The dorsal branch is purely sensory to the dorsal aspect of the medial hand and medial one and one half fingers
The superficial branch of the ulnar nerve is sensory to the palmar aspect of medial hand and medial one and one half fingers.
The deep branch of the ulnar nerve is motor to the intrinsic muscle of the hand excluding those supplied by median nerve
What does the common interosseous artery arise from? Where does it pass through and what does it divide into?
It arises from the ulnar artery. It passes backward to the upper border of the interosseous membrane. It divides into the anterior and posterior interosseous
What muscles are in the hypothenar?
Abductor digiti minimi, flexor digiti minimi, opponena digiti minimi
What are the thenar muscles?
Abductor pollicis brevis, opponens pollicis, and flexor pollicis brevis
What branches does the superficial ulnar nerve give to?
Palmar branches that supply cutaneous innervation to fourth and fifth digits.
Deep branches that innervates intrinsic muscles of the hand
Where can you find the recurrent branch of the median nerve?
It passes over the superficial aspect of the pollicis brevis
