Question

question 43
the conduction zone is commonly called the respiration tree because of its appearance.
true
false
question 44
the amount of blood that is pumped into the aorta each minute by the heart is known as stroke volume.
true
false
question 45
new red blood cells are called

Explanation:

• For Question 43: The conduction - zone of the respiratory system has a branching structure similar to a tree, so it is commonly called the respiratory tree.
• For Question 44: Stroke volume is the amount of blood pumped out of the left ventricle (not just into the aorta per minute in a strict sense; cardiac output is the amount of blood pumped into the aorta per minute). The statement is false.
• For Question 45: New red - blood cells are called reticulocytes.

Answer:

Question 43: True
Question 44: False
Question 45: Reticulocytes