14. UE - Neurology Flashcards
Which of the following is a division of the Cervical Plexus?
A. Lateral Supraclavicular N.
B. Middle Supraclavicular N.
C. Median Supraclavicular N.
D. All of the above
D. All of the above
What does the Cervical Plexus innervate?
cutaneous innervation to the skin over Neck and Shoulder
The Cervical Plexus arises from which Rami?
Anterior Rami of C1-C4
The Brachial Plexus arises from which Rami?
Anterior Rami of C5-T1
The brachial plexus is divided into Roots, Trunks, Divisions, Cords and Terminal Branches. Which are supraclavicular and which are infraclavicular?
The Roots, Trunks, and Divisions are all Supraclavicular, while the Cords and Terminal Branches are all Infraclavicular
RTDCB (Real Texans Drink Cold Beer)
What are the Roots of the Brachial plexus?
The Roots of the Brachial Plexus are the 5 Anterior Rami of Spinal Nerves C5, 6, 7, 8 and T1, travel between the Anterior and Middle Scalene Ms. with the Subclavian A.
Injury to the superior part of the Brachial Plexus (Upper Plexus Injuries) typically affect ___ and ___ Anterior Rami and are usually the result of dramatically increasing the angle between the Neck and the Shoulder. Such an action can stretch, rupture or avulse the Spinal roots off of the Spinal Cord. An individual with an Upper Plexus Injury will have an _______ and _________ Arm and an _________, also known as Erb-Duchenne Palsy or “Waiter’s Tip Position.”
- C5
- C6
- Adducted
- Medially Rotated
- Extended Elbow
What injury to what area results in “Claw Hand”?
Injury to the inferior part of the Brachial Plexus is less common than Upper Plexus Injury and is usually the result of dramatically increasing the angle between the trunk and upper limb. This typically affects the short muscles of the Hand and results in “Claw Hand” when the individual tries to make a fist, also known as Klumpke Paralysis.
Compression of the Cords of the Brachial Plexus usually result from prolonged periods of working with the upper limb extended over the Head, this results in
A. Pain radiating down the arm B. Loss of sensation C. Tingling of the arms D. Weakness of the hands E. All of the above
E. All of the above
Injury to which nerve, while rare, is possible with blunt force trauma and renders the anterior Brachial muscles paralyzed?
A. Radial N.
B. Median N.
C. Musculocutaneous N.
D. All of the above
C. Musculocutaneous N.
Injury to which nerve results in atrophy of the Deltoid M. and loss of sensation over the superolateral Arm, where the Superior Lateral Brachial Cutaneous N. exists.
A. Radial N.
B. Axillary N.
C. Musculocutaneous N.
D. Long Thoracic N.
B. Axillary N.
Injury of the Median N. in the Wrist results in an _______ and ____________, known as Ape’s Hand.
- Adducted Thumb
- Thenar eminence atrophy
Injury to the Median N. at the Elbow inhibits flexion of 2nd and 3rd digits, known as Hand of Benediction, as well as the symptoms of Ape’s Hand.
_______ injury typically occurs in one of four places: posterior to the Medial Humeral Epicondyle, between the Ulnar and Humeral Heads of the Flexor Carpi Ulnaris M. (the so-called Cubital Tunnel), at the Wrist or in the Hand.
The overall results are similar, extensive loss of sensory and motor control in the Hand, and when an individual tries to make a fist it appears as _________.
- Ulnar N.
- “Claw Hand”
The _______ can be compressed when pressure is placed on the _______ of the Hamate B., like when riding a bike. This can produce sensory loss on the medial side of the hand and weakness of the intrinsic hand muscles and is often referred to as ______________.
- Ulnar N.
- Hamulus
- “Handlebar Neuropathy”
Injury of the ________ results in “Wrist Drop,” impairment of elbow extension and thumb abduction and extension.
- Radial N.
