The Digestive and Excretory Systems

Question 1

The picture represents the respiratory system.

Revolt · Accepted Answer

the trachea

Question 2

Which statements describe the movement of blood through the heart? Select two options. Blood from the veins enters the ventricles.Atria and ventricles contract at the same time.Atria push blood into the ventricles.Valves allow for two-way blood flow.Ventricles push blood out of the heart.

Revolt · Accepted Answer

Atria push blood into the ventricles.; Ventricles push blood out of the heart.

Question 3

Which best describes carbon dioxide’s path out of the body?

Revolt · Accepted Answer

alveoli → bronchus → trachea → larynx → pharynx → nose

Question 4

Which structure is also called the windpipe?

Revolt · Accepted Answer

the trachea

Question 5

AtriaVentriclesValvesCapillaries

Revolt · Accepted Answer

Valves

Question 6

Ventricles pump blood out of the heart. Which types of vessels will be the first to contact the blood from the ventricles?

Revolt · Accepted Answer

arteries

Question 7

Which is located inside the lung?

Revolt · Accepted Answer

the alveoli

Question 8

Which component of blood allows oxygen from the air to move from the lungs to cells of the body?

Revolt · Accepted Answer

red blood cells

Question 9

Gerald is lightheaded and tired from a lack of oxygen in his tissues.What is most likely the reason he feels this way?

Revolt · Accepted Answer

His red blood cell count is low.

The Digestive and Excretory Systems Answers

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