plexuses Flashcards
what muscles are innervated by the dorsal scapular nerve?
- levator scapulae
- rhomboid major
- rhomboid minor
what muscles are innervated by the long thoracic nerve?
- serratus anterior
what muscles are innervated by the suprascapular nerve?
- supraspinatus
- infraspinatus
what muscles are innervated by the subclavius?
- subclavius
what muscles are innervated by the lateral pectoral nerve?
- pec major
- pec minor
what muscles are innervated by the upper subscapular nerve?
- subscapularis
what muscles are innervated by the middle subscapular or thoracodorsal?
- latissimus dorsi
what muscles are innervated by the lower subscapular nerve?
- teres major
what muscles are innervated by the medial pectoral
- pec major
- pec minor
what sensory area is innervated by the medial cutaneous nerve of the arm or medial brachial cutaneous?
- front and medial skin of arm
what sensory area is innervated by the medial cutaneous nerve of the forearm or medial antebrachial cutaneous nerve of the arm?
- medial skin of the forearm
what are the spinal nerve levels of the musculocutaneous nerves?
- C5-C7
what are the motor and sensory innervations of the musculocutaneous nerve?
- motor: anterior muscle of the arm (biceps, brachialis, coracobrachialis)
- sensory: skin on the lateral forearm
what are the spinal nerve levels of the median nerve?
- C6-T1
what are the motor and sensory nerve innervations of the median nerve?
- motor: anterior muscles (not including half flexor digitorum profundus and flexor carpi ulnaris) of the forearm and a few hand muscles
- sensory: thumb and digits 2, 3 and half of 4
what are the motor and sensory nerve innervations of the ulnar nerve?
- motor: half of digitorum profundus and flexor carpi ulnaris and most hand muscles
- sensory: half of digit 4 and 5
what are the spinal nerve levels of the axillary nerve
- C5-C6
what are the motor and sensory nerve innervations of the axillary nerve?
- motor: deltoid and teres minor
- sensory: skin on the side of the shoulder
what are the spinal nerve levels of the radial nerve
- C5-T1
what are the motor and sensory nerve innervations of the radial nerve
- motor: posterior muscles of the arm (triceps) and forearm
- sensory: skin on posterior arm, forearm and posterior digits 1, 2, 3, and half of 4
what are the 4 major plexuses?
- cervical
- brachial
- lumbar
- sacral
what nerves make up the cervical plexus?
- C5-T1
what plexus innervates the pectoral girdle and the upper limbs?
- brachial plexus
