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T2-PNS Quiz 1
| Question | Answer |
|---|---|
| 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
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