Human Circulatory System

Which statement is true about arteries?

• Arteries carry oxygen-poor blood.

• Arteries move blood toward the heart.

• Arteries connect to the atria of the heart.

• Arteries move blood away from the heart.

To which chamber of the heart does an oxygen-rich blood from the lung return?

• left atrium

• left ventricle

• right atrium

• right ventricle

Which part of the blood helps fight disease?

• plasma

• platelets

• red blood cells

• white blood cells

Which statement is correct concerning the heart?

• Left ventricle pumps blood to the lungs.

• Right ventricle pumps blood to the lungs.

• Left ventricle pumps to the body including the lungs.

• Right ventricle pumps blood to the body excluding the lungs.

Which of the following statements is correct?

• Arteries carry only oxygenated blood.

• Veins carry only deoxygenated blood.

• Veins and arteries carry both oxygenated and deoxygenated

• both a and b

Which statement is not true about blood cells?

• Blood is made in your heart

• Red blood cells mature in about two days.

• Red blood cells make up 48 percent of blood volume

• People make about two million red blood cells every second.

Which system keeps the blood flowing in one direction through the heart?

• switches

• one-way valves

• pumps

• veins

Which of the following is not belong to the group?

• lymphocyte

• eosinophil

• basophil

• neutrophil

Which of the following is NOT a formed element of blood?

• plasma

• red blood cells

• platelets

• white blood cells

Which of the following is NOT a layer of the heart?

• Endocardium

• Pericardium

• Endomyosin

• Myocardium