Nerves Flashcards
What are the spinal nerves that form the Brachial Plexus?
C6, C7, C8, T1, T2
Extrinsic Muscles of Thoracic Limb?
Superficial pectorals, deep pectorals, serratus ventralis, latissimus dorsi, omotransversarius, trapezius, brachiocephalicus, cutaneus trunci, preputial
What innervates the superficial pectoral muscle?
Cranial pectoral nerve (C6-C8)
What innervates the deep pectoral muscle?
Caudal pectoral nerve (C8-T2)
What innervates the serratus ventralis?
Long thoracic nerve (C7)
What innervates the latissimus dorsi?
Thoracodorsal nerve (C8)
What innervates the cutaneus trunci and preputial muscles?
Lateral thoracic nerve (C8)
Name of nerves that innervate extrinsic muscles of thoracic limb?
Cranial pectoral nerve, caudal pectoral nerve, long thoracic nerve, thoracodorsal, lateral thoracic
Name of nerves that innervate intrinsic muscles of thoracic limb?
Suprascapular, subscapular, musculocutaneous, axillary, radial, median, ulnar
What innervates supraspinatus and infraspinatus?
Suprascapular nerve
What innervates subscapularis?
Subscapular nerve
What innervates biceps brachii and brachialis?
Musculocutaneous nerve
What innervates the teres major, teres minor, and deltoideus?
Axillary nerve
What does the radial nerve innervate?
Extensor muscles of cubital joint (triceps brachii, anconeus, tensor fascia antebrachii), Extensor muscles of carpal joint (extensor carpi radialis) and ulnaris lateralis, Extensor muscles of digital joints (common digital extensor and lateral digital extensor)
What does the median nerve innervate?
Flexor carpi radialis, superficial digital flexor, deep digital flexor, pronator teres, pronator quadratus,
What does the ulnar nerve innervate?
Flexor carpi ulnaris, deep digital flexor, interosseous muscles
What are the superficial nerves on the dorsal side of forepaw?
dorsal common digital nerves - radial nerve (lateral branch of superficial branch)
What are the deep nerves on the palmar side of forepaw?
palmar metacarpal nerves - ulnar nerve (palmar branch)
What are the superficial nerves on the palmar side of forepaw?
palmar common digital nerves - median nerve
Autonomous zone of musculocutaneous nerve?
skin over medial aspect of antebrachium
Autonomous zone of axillary nerve?
skin over lateral aspect brachium and cranial aspect of antebrachium
Autonomous zone of radial nerve?
skin over craniolateral aspect of antebrachium and carpus, skin over dorsal aspect of forepaw
Autonomous zone of median nerve?
skin over palmar aspect of metacarpus and digits
Autonomous zone of ulnar nerve?
skin over caudal aspect of antebrachium, skin over palmar surface of carpus, metacarpus, and digits, lateral surface of 5th digit
