Chapter 9 (Circulation Structure)

Question 1

vena cava

Answer 1

large-diameter vein that gathers blood from the body and returns it to the heart
inferior vena cava - portion of the vena cava that gathers blood from the lower portion of the body

Question 2

superior vena cava

Answer 2

portion of the vena cava that gathers blood from the upper portion of the body (head and arms)

Question 3

inferior vena cava

Answer 3

portion of the vena cava that gathers blood from the lower portion of the body