3. Which of the following statements are accurate?
A. Veins in the pulmonary circuit carry oxygen-richblood
B. Arteries in the pulmonary circuit deliver oxygen-rich bloodto the body tissues.
C. All arteries carry blood away from the heart
D. Arteries in the pulmonary circuit deliver oxygen-poor bloodto the lungs.
E. Veins in the systemic circuit return oxygen-poor blood tothe heart.
4. Which of the following statements are accurate?
A. The heartbeat in a human heart is initiated by theatrioventricular mode.
B. During systole, the heart's ventricle(s) is/are relaxingand filling with blood.
C. During systole, blood will be pumped from the heart intothe veins of the body
D. The pulse is used to determine one's heart rate.
E. The nervous system and certain hormones can alter pacemakeractivity.
5. Which of the following statements are accurate?
A. Red blood cells are known as erythrocytes.
B. Hemoglobin would be found in white blood cells andfunctions in carrying oxygen in body tissues.
C. The liquid portion of the blood is known as thehematocrit.
D. Platelets are the only thing in the blood that contributesto blood clotting.
E. Lymphocytes are the only type of white blood cells and areimmune cells
