PNS Exam 3 All

Dorsal Scapular nerve (C5 ONLY)

#1

Anterior Division

#2

Lateral Cord (C5-C7)

#3

Posterior Cord (C5-C8, T1)

#4

Long Thoracic Nerve (C5-C7)

#5

Divide

Cords do what? Divide or combine?

Thoracodorsal Nerve

#7

Medial Cord (C8, T1)

#6

Suprascapular nerve

#11

Lateral pectoral nerve (C5-C7)

#16

Nerve to Subclavius

#14

Combine

Roots do what? Divide or combine

Divide

Trunks do what? Divide or combine

Combine

Divisions do what? Divide or combine

Medial pectoral Nerve (C8 and T1)

#17

Superior (C5, C6)

Middle (C7)

Inferior (C8, T1)

What are the trunks?

Lateral Cutaneous nerve of the forearm

What nerve supplies the blue in this picture?

Medial Cutaneous nerve of the arm (C8 and T1)

What nerve supplies the blue in this picture?

Medial cutaneous nerve of the forearm (C8 and T1)

What nerve supplies the blue in this picture?

ulnar nerve (C8 and T1 sometimes C7)

What nerve supplies the blue in this picture?

Medial cutaneous nerve of the forearm (C8 and T1)

What nerve supplies the blue in this picture?

1. Thenar muscles

2. 1st and 2nd lumbricals

What muscles in the hand are not supplied by the ulnar nerve?

Claw Hand

Ulnar nerve (C8 and T1)

What is the clinical significance of this picture? What nerve is associated with this?

Superior lateral cutaneous nerve of arm (C5-C6)

What nerve supplies the blue in this picture?

Radial nerve (C5-C8 and sometimes T1)

What nerve supplies the blue in this picture?

Wrist Drop

Radial nerve (C5-C8)

What's the clinical significance of this picture? What nerve is assessed?

Hand of oath/benediction

Median nerve (C6-C8 and T1)

What is the clinical significance of this picture? What nerve is assessed?

Anterior Primary Ramus of T2

#2

Intercostobrachial nerve

#14

Posterior Primary Ramus

#1

Anterior Primary Ramus

#2

Lateral Branch of posterior primary ramus

#3

Anterior branch of lateral cutaneous branch of intercostal nerve

#10

Medial branch

#4

intercostal nerves

#5

Anterior cutaneous branch of intercostal nerve

#9

T12

#1

L1

#2

L2

#3

Posterior branch of lateral cutaneous branch of intercostal nerve

#6

L3

#4

Subcostal nerve (T12)

#6

Iliohypograstric nerve (T12 and L1)

#7

Ilioinguinal nerve (L1)

#8

Genitofemoral nerve (L1 and L2)

#9

Lateral Cutaneous Nerve of thigh (L2 and L3)

#10

Lateral Cutaneous branch

#8

Femoral branch

#12

Femoral nerve (L3 and L4)

#11

Genital branch

#13

Lateral Cutaneous Nerve of the Thigh (L2-L3)

What nerve supplies the blue in this picture?

Femoral Nerve (L2-L4)

What nerve supplies the blue in this picture?

Anterior cutaneous Nerve of thigh

#1

Saphenous nerve

#2

Obturator nerve (L2-L4)

What nerve supplies the blue in this picture?

L4

#1

L5

#2

L4

#5

S2

#4

S1

#3

Obturator nerve (L2-L4)

#14

Muscular branch (S4)

#7

Muscular branch (S4)

#8

Pudendal nerve (S2-S4)

#9

Perforating Cutaneous nerve (S2-S3)

#10

Posterior Cutaneous nerve of thigh (A: S1-S2, P: S2-S3)

#11

Nerve to Piriformis (S1-S2)

#12

Nerve to obturator internus and superior gemellus (L5, S1-S2)

#13

Nerve to quadratus femoris and inferior gemellus (L4-L5, S1)

#14

Tibial Nerve

#15

Common fibular nerve

#16

Sciatic nerve (L4-L5, S1-S3)

#17

Inferior Gluteal nerve (L5, S1-S2)

#18

S3

#5

pelvic splanchnic nerves

#20

Posterior cutaneous nerve of thigh

What nerve supplies the blue in this picture?

Common Fibular nerve

What nerve supplies the blue in this picture?

Superficial fibular nerve (L4-S2)

What nerve supplies the PINK OUTLINE in this picture?

Medial calcaneal branches (L4-S3)

What nerve supplies the YELLOW OUTLINE in this picture?

Deep Fibular Nerve (L4-S2)

What nerve supplies the PURPLE OVAL in this picture?

lateral sural cutaneous nerve (L4-S2)

What nerve supplies the BLUE OUTLINE in this picture?

Superior Gluteal nerve (L4-L5, S1)

#19

S4

#6

The brachial plexus is formed by anterior primary rami of _____

C5-T1

Each root of the brachial plexus receives a ______ from the sympathetic trunk

gray ramus communicans

Roots C5 and C6 combine to form the ____ trunk

superior

Root of C7 stays alone to become the _____ trunk

middle

Roots of C8 and T1 combine to form the ____ trunk

inferior

(TQ) Cords are named for their relationship to the _____ artery

axillary

Lateral Cord of B.P

formed by anterior divisions of superior and middle trunks; contains fibers from C5-C7

Medial Cord of B.P

formed by anterior divisions of the inferior trunk; contains fibers from C8 and T1

Posterior Cord of B.P

formed by union of the posterior division of all 3 trunks; contains fibers from C5-T1

What are the 2 nerves formed from roots of the B.P?

-dorsal scapular nerve

-long thoracic nerve

Dorsal scapular nerve branches off of the ____ root

C5

(TQ) What 3 muscles does the dorsal scapular nerve supply?

1. levator scapula

2. rhomboid major

3. rhomboid minor

Long thoracic nerve is formed from roots of ___, _____ and ____

C5 ; C6 ; C7

(TQ) What muscle does the long thoracic nerve supply?

serratus anterior

What are the 2 nerves that branch off of the superior trunk of the B.P?

-suprascapular nerve

-nerve to subclavius

Suprascapular nerve contains fibers from ___ and ___

C5 ; C6

What 2 muscles does the suprascapular nerve supply?

1. supraspinatus

2. infraspinatus