Question

quiz
i. directions in the space provided, write the letter of the choice that best completes the statement or answers the question.

1. which is not a function of the heart?

a. carbon dioxide is carried from the air to the lungs.
b. waste products are carried to the kidneys for removal.
c. oxygen is carried from the lungs to body cells.
d. nutrients are absorbed and carried to body cells.

1. which chamber of the heart receives oxygenated blood from the lungs?

a. right atrium
b. right ventricle
c. left atrium
d. left ventricle

1. what is the fluid in blood that contains water, nutrients, proteins, salts, and hormones?

a. platelets
b. atria
c. hemoglobin
d. plasma

1. which vessels return blood to the heart?

a. arteries c. arterioles
b. capillaries d. veins

1. what clear fluid fills the spaces around body cells?

a. platelets c. plasma
b. lymph d. anemia
h. directions write a plus (+) in the space provided if the statement is true. if the statement is false, cross out the underlined word or phrase and write the correct word or phrase in the space provided.

1. the oxygen - carrying protein in blood is hemoglobin.
2. blood vessels that carry oxygenated blood away from the heart are arteries.
3. the lymphatic system helps fight infection and provides immunity to disease.
4. blood pressure is a measure of the amount of force the blood places on the walls of the heart.
5. congenital heart defects are conditions of the heart that are present at birth.

Explanation:

1. The heart's functions involve circulating blood to carry waste, oxygen, and nutrients. Carbon dioxide is carried from the body cells to the lungs (not the heart's function as stated in option a).
2. The left atrium receives oxygenated blood from the lungs via the pulmonary veins.
3. Plasma is the fluid part of blood that contains water, nutrients, proteins, salts, and hormones.
4. Veins return blood to the heart. Arteries carry blood away from the heart, arterioles are small arteries, and capillaries are for gas and nutrient exchange.
5. Lymph is the clear fluid that fills the spaces around body cells.
6. Hemoglobin is indeed the oxygen - carrying protein in blood.
7. Arteries carry oxygenated blood away from the heart (except for the pulmonary artery which carries de - oxygenated blood to the lungs).
8. The lymphatic system helps fight infection and provides immunity.
9. Blood pressure is the force of blood on the walls of blood vessels (not the heart).
10. Congenital heart defects are present at birth.

Answer:

1. A. Carbon dioxide is carried from the air to the lungs.
2. C. Left atrium
3. D. Plasma
4. D. Veins
5. B. Lymph
6. +
7. +
8. +
9. Blood vessels
10. +