Intermediate Common Carotid Artery Quiz

Q1. Why does the left common carotid artery have a longer course than the right?

• It passes through the cranial cavity before entering the neck
• It has an additional thoracic course from the aortic arch
• It winds around the clavicle twice
• It originates from the abdominal aorta

Q2. What is the usual relationship of the common carotid artery to the thyroid gland?

• Anterior to the thyroid isthmus in the midline
• Within the tracheal lumen
• Inside the thyroid follicles
• Posterolateral to the thyroid lobe

Q3. Which muscle commonly overlaps the common carotid artery superficially?

• Geniohyoid
• Sternocleidomastoid
• Posterior scalene only
• Mylohyoid

Q4. What structure lies medial to the common carotid artery in much of the neck?

• Cervical visceral column
• Brachial plexus trunks
• Internal jugular vein
• Posterior triangle

Q5. Where is the carotid body located?

• At the common carotid bifurcation
• Inside the jugular foramen
• At the origin of the vertebral artery
• At the aortic hiatus

Q6. What sensory function is associated with the carotid sinus?

• Motor control of the larynx
• Taste from the posterior tongue
• Detection of arterial pressure changes
• Detection of blood oxygen only

Q7. What sensory function is associated with the carotid body?

• Detection of blood chemical changes, especially reduced oxygen
• Detection of neck muscle stretch only
• Control of pupillary diameter
• Detection of sound vibration

Q8. Which nerve provides the principal afferent pathway from the carotid sinus and carotid body?

• Glossopharyngeal nerve through the carotid sinus nerve
• Accessory nerve
• Hypoglossal nerve
• Facial nerve through chorda tympani

Q9. What is the carotid tubercle used for clinically?

• The attachment of the carotid body
• A site for palpating the facial artery
• The origin of the internal jugular vein
• A landmark for compression of the common carotid artery

Q10. How is the sympathetic trunk related to the common carotid artery and its sheath?

• Between the artery and internal jugular vein inside the sheath
• Posterior to the carotid sheath
• Inside the common carotid lumen
• Superficial to platysma