1. In which chamber of the heart does oxygen-rich blood enter from the lungs? a left atrium b.left ventricle c.rght atrium d. right ventricle 2 Which statement is true about arteris a. Arteries carry oxygen-poor blood b. Arterieis move blood toward the heart c.Arteries connect to the atria of the heart d.Arteries move blood away from the heart
2. Which statement is correct about pulmonary circulation? a. Arteries carry only oxygenated blood.
b.Arteries carry only deoxygenated blood.
c Both veins and arteries carry oxygenated blood.
d. Both veins and arteries carty deoxygenated blood.
4 Which statement is correct? a. The left ventricle pumps blood to the lungs
b.The right ventricle pumpe blood to the lungs.
c.The left ventricle pumps blood to the body, including the lungs
d.The right ventricle pumps blood to the body, excluding the lungs,
5. Which structures keep the blood flowing in one direction through the heart? a one-way valves
b.pumps
c. red blood cell
d white blood cell
6 In which order does the blood pass from the body through the heart chambers?
a left atrium - left ventricle right atrium -right ventricle
b. left atrium-right atrium --left ventricle- right ventricle
c. right atrium-right ventricle- left atrium - left ventricle
d .night ventricle-right atrium left ventricle - left atrium
7 Which statement is not true about blood cells? a. Blood is made in your heart
b. Red blood cells mature in two days
c.People make about two million red blood cells every second.
d. Red blood cells make up forty-eight percent of blood volume
8. Which of the following is the correct pathway of blood through the body, including the lungs?
