Intermediate Subclavian Artery Quiz

Q1. Where is the first part of the subclavian artery located relative to the anterior scalene muscle?

• Lateral to the anterior scalene
• Posterior to the middle scalene only
• Medial to the anterior scalene
• Inferior to pectoralis minor

Q2. Where is the second part of the subclavian artery located relative to the anterior scalene muscle?

• Anterior to sternocleidomastoid only
• Posterior to the anterior scalene
• Lateral to the first rib
• Medial to the anterior scalene

Q3. Where is the third part of the subclavian artery located relative to the anterior scalene muscle?

• Medial to the anterior scalene
• Lateral to the anterior scalene
• Distal to teres major
• Within the anterior scalene

Q4. What is the relationship of the subclavian vein to the anterior scalene muscle?

• It passes through the intervertebral foramina
• It passes anterior to the anterior scalene
• It passes through the middle scalene
• It passes posterior to the anterior scalene with the artery

Q5. The subclavian artery passes between which two scalene muscles?

• Anterior and middle scalene muscles
• Middle and posterior scalene muscles
• Pectoralis major and pectoralis minor
• Sternocleidomastoid and anterior scalene

Q6. Which neural structure accompanies the subclavian artery through the interscalene region?

• Axillary nerve alone
• Median nerve
• Ulnar nerve alone
• Brachial plexus

Q7. Which artery commonly arises from the thyrocervical trunk and contributes to the scapular anastomosis?

• Superior ulnar collateral artery
• Suprascapular artery
• Anterior interosseous artery
• Radial recurrent artery

Q8. Which branch may arise directly from the third part of the subclavian artery but often arises from the transverse cervical artery?

• Superior thoracic artery
• Dorsal scapular artery
• Vertebral artery
• Internal thoracic artery

Q9. Which subclavian artery branch enters the transverse foramen of a cervical vertebra, usually at C6?

• Internal thoracic artery
• Dorsal scapular artery
• Suprascapular artery
• Vertebral artery

Q10. Which sequence correctly traces the usual arterial pathway from the right side of the aortic arch to the axillary artery?

• Aortic arch, axillary artery, subclavian artery, brachial artery
• Aortic arch, brachiocephalic trunk, brachial artery, axillary artery
• Aortic arch, brachiocephalic trunk, right subclavian artery, axillary artery
• Aortic arch, right common carotid artery, right subclavian artery, axillary artery