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Questions and Answers
Which nerve branches off the musculocutaneous nerve?
Which nerve branches off the musculocutaneous nerve?
- Posterior cutaneous nerve of the forearm
- Medial cutaneous nerve of the forearm
- Lateral cutaneous nerve of the arm
- Lateral cutaneous nerve of the forearm (correct)
During which procedure is the lateral cutaneous nerve of the forearm most susceptible to iatrogenic injury?
During which procedure is the lateral cutaneous nerve of the forearm most susceptible to iatrogenic injury?
- Ulnar nerve transposition
- Venipuncture (correct)
- Brachial plexus block
- Radial artery cannulation
In relation to the biceps brachii tendon, where does the lateral cutaneous nerve of the forearm enter the forearm?
In relation to the biceps brachii tendon, where does the lateral cutaneous nerve of the forearm enter the forearm?
- Anterior
- Lateral (correct)
- Posterior
- Medial
Damage to the lateral cutaneous nerve of the forearm would most likely result in what type of sensory impairment?
Damage to the lateral cutaneous nerve of the forearm would most likely result in what type of sensory impairment?
Which anatomical structure lies in close proximity to the lateral cutaneous nerve of the forearm, posing a risk during certain medical procedures?
Which anatomical structure lies in close proximity to the lateral cutaneous nerve of the forearm, posing a risk during certain medical procedures?
Flashcards
Musculocutaneous Nerve
Musculocutaneous Nerve
A nerve that supplies motor function to the anterior arm and sensory function to the forearm.
Lateral Cutaneous Nerve of the Forearm
Lateral Cutaneous Nerve of the Forearm
A branch of the musculocutaneous nerve that provides sensation to the lateral aspect of the forearm.
Cephalic Vein
Cephalic Vein
A superficial vein in the arm that runs close to the lateral cutaneous nerve of the forearm.
Venipuncture Injury Risk
Venipuncture Injury Risk
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Biceps Brachii Tendon
Biceps Brachii Tendon
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Study Notes
Musculocutaneous Nerve
- Branches: The musculocutaneous nerve gives rise to the lateral cutaneous nerve of the forearm. This nerve enters the forearm laterally to the biceps brachii tendon.
- Relationships: The lateral cutaneous nerve of the forearm travels close to the cephalic vein. This proximity puts it at risk for injury during venipuncture procedures.
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