Quiz 2 Flashcards
If someone is thrown from a motorcycle and horse and widely separates the neck and shoulder. What part of the brachial plexus is affected?
The Superior Part.
What is the waiter’s tip position?
When the limb hands by the side in medial rotation from injury to C5 and C6 of brachial plexus.
Someone with “Backpacker’s Palsy” deals with what kind of injury?
Injury to superior part of the brachial plexus.
What is affected from Acute Brachial Plexus Neuritis/Neuropathy?
Superior Part of brachial plexus
When someone grabs something to break a fall, what part of their brachial plexus is affected?
The inferior part.
Name the borders of the deltopectoral triangle.
Superior: Clavicle
Laterally: Deltoid
Medially: Pectoralis Major
What passes through the deltopectoral triangle?
The Cephalic Vein and the deltoid branch of the thoracoacromial artery.
What is located in the posterior axillary fold?
Latissimus Dorsi and Teres Major
From where do you measure the arm?
From the acromial angle to the lateral condyle of the humerus
What injuries are involved with the biceps brachii?
- Biceps tendonitis
- Dislocation of tendon
- Tendon rupture of the long head
(From Lots of Throwing) - Popeye Deformity (Forceful flexion like in Weight lifting or swimming)
Which demographic has a higher percentage to receive a fracture/dislocation of the proximal humeral epiphysis?
- Teenagers (Boys less than 18 and Girls less than 16)
What is significant about fracturing the nutrient humeral artery?
It would take relatively longer to heal that fracture than another in the humerus.
How to control a hemorrhage or bleeding from a brachial artery?
Compress near the middle of the arm to control the bleeding.
If the arm needed to be clamped due to the brachial artery, where should they be clamped?
Distal to the deep artery of the arm as it will prevent tissue damage.
What should always be considered when there is a fracture of the humeral body?
The possibility of a radial nerve lesion
What would be observed in a radial nerve lesion from a humeral body fracture?
- Triceps would weaken from loss of medial head only, so there would be just weak extension of the forearm/arm.
What would occur with a supracondylar fracture?
Nerves or branches of the vessel may be affected near the triceps and brachialis
What are the two main superficial veins?
The Cephalic and the Basilic veins
If radial nerve is severed at the radial groove, what can occur?
Medial head of triceps and everything distal to it will not be innervated by the radial nerve.
True or false? Can elbow flexion still occur if the musculocutaneous nerve is cut?
Bonus: What nerve innervates the brachioradialis?
True, it can still occur because there are muscles like the brachioradialis to perform elbow flexion. It will be a weak flexion.
Radial nerve
What are the effects of an injury to the musculocutaneous nerve?
- Weakness in elbow flexion and in supination.
What are the effects of an injury to the radial nerve?
Paralysis in triceps, brachioradialis, supinator, Extensors of the wrist and digits besides the ones innervated by the ulnar nerve.
A main characteristic to radial nerve injuries?
- The wrist drop, however, they can still move their fingers at the PIPs and DIPs, NOT THE METACARPOPHALANGEAL
What lies in the cubital fossa?
TAN
TENDON of the biceps brachii
Brachial ARTERY
Median NERVE
