Intermediate Cervical Plexus Quiz

Q1. Which roots principally contribute to the lesser occipital nerve?

• T1-T2
• C4-C5
• C2
• C1 only

Q2. Which roots principally form the great auricular nerve?

• C5-C6
• C1-C2
• C2-C3
• C3-C4

Q3. Which roots principally form the transverse cervical nerve?

• C2-C3
• C1 only
• C4-C5
• C6-C7

Q4. Which roots principally form the supraclavicular nerves?

• C2-C3
• C3-C4
• C1-C2
• C5-C6

Q5. How does the superior root of the ansa cervicalis reach the neck?

• C2 fibers travel with the accessory nerve
• C5 fibers travel with the sympathetic trunk
• C1 fibers travel temporarily with the hypoglossal nerve
• C4 fibers travel with the vagus nerve

Q6. Which roots primarily form the inferior root of the ansa cervicalis?

• C2-C3
• C5-T1
• C4-C5
• C1 only

Q7. Which infrahyoid muscle is not supplied by the ansa cervicalis?

• Sternohyoid
• Thyrohyoid
• Sternothyroid
• Omohyoid

Q8. Which other muscle receives C1 fibers traveling with the hypoglossal nerve rather than through the ansa cervicalis?

• Sternohyoid
• Sternothyroid
• Inferior belly of omohyoid
• Geniohyoid

Q9. What is the relationship of the phrenic nerve to the anterior scalene muscle in the neck?

• It runs posterior to the vertebral artery within transverse foramina
• It descends inside sternocleidomastoid
• It descends on the anterior surface of anterior scalene
• It passes through the middle scalene

Q10. Which cervical plexus fibers contribute proprioceptive or motor-associated innervation to sternocleidomastoid and trapezius alongside the accessory nerve?

• Upper cervical spinal fibers
• Lower thoracic sympathetic fibers
• Facial nerve fibers
• Recurrent laryngeal fibers