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T2-PNS Quiz 1

QuestionAnswer
What spinal levels receive sympathetic innervations from the Superior Cervical Ganglion? C1-4
What spinal levels receive sympathetic innervations from the Middle Cervical Ganglion? C5-6
What spinal levels receive sympathetic innervations from the Inferior Cervical (Stallate) Ganglion? C7, 8, T1
Where do all roots of the brachial plexus arise from? Ventral Primary Ramus
What do the dorsal rami innervate? True muscles (by the spinal column), skin etc.
What fibers are not distributed to the brachial plexus? Parasympathetic
What do all peripheral nerves carry? somatic motor, somatic and visceral sensory, and sympathetic fibers
Where does the brachial plexus receive it’s sympathetic component? right behind the scalene
When the Roots turn into trunks, what segments end up in each trunk? Upper-C5,6; Middle- C7; Lower C8-T1.
In general, what do the nerves of the posterior division of the brachial plexus innervate? Extensors, supinators, and abductors (plus brachioradialis)
In general, what do the nerves of the anterior division of the brachial plexus innvate? Flexors, pronators, and adductors
What segments (ant, or post) make up the Dorsal Scapular N, and what muscle does it innervate? Post Div C5, it leaves the plexus from the root and innervates Rhomboids major and minor
What segments (ant, or post) make up the Long Thoracic N, and what muscle does it innervate? C5, 6, 7, posterior div, and leaves the plexus from the root, and innervates Serratus Anterior
What segments (ant or post) make up the Nerve to the subclavius, and what muscle does it innervate? C5,6, ant division, leaves the plexus from the trunk, and innervates the subclavius muscle
What test is used to test the rhomboids? What segments is it testing? Position of attention, C5
What test is used to test the Serratus Ant? What segments are being tested? Reaching, C5, 6, 7
What segments (ant or post) make up the Suprascapular N, and what muscles does it innervate? C5, 6, 7, ant div, leaves plexus at trunk, and innervates supraspinatus, and infraspinatus
What test is used on the Supraspinatus, and what segments are being tested? Pressure applied against abduction, C5
What test is used on the Infraspinatus, and what segments are being tested? Pressure applied against external rotation, C5, 6
Where do all of the Infraclavicular branches arise from? 3 cords and include the 5 major branches Axillary, Radial, Median, Ulnar, Musculocutaneous, and the cutaneous branches
What segments contribute to the medial cutaneous branches of the forearm and arm? C8 and T1
What segments contribute to the Lateral Pectoral nerve, what division, and what portion of the brachial plexus, and what muscle? C5, 6, 7, ant div, and leaves plexus from the lateral cord and innervates Pectoralis Major (upper fibers), and works with the Medial Pectoral nerve with the lower fibers of Pec Major
What test is used for the Pec Major, and what segment is being tested? pressure applied against internal rotation and flexion (upper fibers), pressure applied against adduction (lower fibers), Segments C5, 6, 7
In Thoracic Outlet syndrome, where is a common place for the cords and the axillary artery to get pinched? Between the ribs and Pec Minor
What segments contribute to the Medial Pectoral Nerve? What does it innervate? C8,T1, anterior division and arises off of the Medial Cord and innervates Pec Minor and the lower fibers of Pec Major
What test is used to test the Pec Minor? None listed
What nerves innervate subscapularis and what segments do those nerves arise off of? Upper Subscapular (C5,6) and Lower Subscapular (C5)
What muscle does Thoracodorsal innervate, and what segments does it come from? Latisimus Dorsi, C6, 7, 8
What muscles does Lower Subscapular N innverate, and what segments are involved? Teres Major (C6), and Subscapularis (C5)
What muscle does the Spinal portion of CN XI ventral rami innervate, and what segments are involved? Trapezius C3, 4
What segments are involved with the nerve to the Levator Scapulae? C3, 4
What test can be used to test Levator, and what innervations is involved? Shoulder Shrug, and the nerve to the Levator Scapulae
What test can be done to test Trapezius (Spinal portion of XI, ventral rami), and what segements are involved)? Shoulder Shrug for upper fibers, pos of attention for middle, and will learn lower in Methods II.
Created by: maddie427 on 2011-01-11



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