Question

select all that apply
tributaries of which two veins drain blood from the abdominal and the thoracic walls?
□ the azygos vein
□ the jugular veins
□ the brachiocephalic vein
□ the inferior vena cava

Explanation:

The azygos vein drains blood from the thoracic - wall and also receives tributaries from the abdominal wall. The brachiocephalic vein receives blood from the upper limbs, head, neck and also has tributaries related to the thoracic - wall. The jugular veins mainly drain blood from the head and neck. The inferior vena cava mainly returns blood from the lower body and abdominal organs, not primarily from the abdominal and thoracic walls in the context of tributaries as described in the question.

Answer:

The azygos vein, The brachiocephalic vein