Thorax anatomy

Question 1

Branches of subclavian artery (4)

Answer 1

1. Vertebral
2. Internal thoracic
3. Thyrocervical trunk
   - Inferior thyroid
   - Ascending cervical
   - Transverse cervical
   - Suprascapular

//

4. Costocervical trunk
   - Superior intercostal
   - Deep cervical

//

5. Dorsal scapular

Question 2

What muscle separates subclavian artery into three parts?

Answer 2

Scalenus anterior

Question 3

Which muscle separates axillary artery into 3 parts

Answer 3

Pectoralis minor

Question 4

Boundaries of axillary artery?

Answer 4

Inferior border of first rib to inferior border of teres major

Question 5

Branches of axillary artery? (6)

Answer 5

1. Superior thoracic 
//

2. Thoracoacromial (deltoid, acromial, clavicular and pectoral branches)
3. Lateral thoracic
   //
4. Subscapular (thoracodorsal and circumflex scapular branches)
5. Anterior humeral circumflex
6. Posterior humeral circumflex