Circulation and Respiration

What is the dangerous condition that results when a person loses too much blood and his blood pressure falls to a critical low called?

• cardiac arrest

• circulatory shock

• heart attack

• stroke

What is the iron-containing blood protein that transports oxygen through the body called?

• hemophilia

• platelet

• hemoglobin

• albumin

About 55% of the blood volume is a liquid called...

• platelet

• erythrocytes

• fibrinogen

• plasma

What is the inherited disease in which elongated crystals form in red blood cells under certain conditions, causing the cells to become brittle and abnormally shaped?

• hemophilia

• spleen

• leukemia

• sickle cell anemia

Tags

NGSS.HS-LS3-2

What is a hand-sized organ located in the abdominal cavity behind the stomach, that serves as a reservoir for red blood cells?

• liver

• kidney

• appendix

• spleen

What is the tiny, disk-shaped cell fragment in the blood that serves as a roving patch kit?

• platelet

• plasma

• red blood cell

• white blood cell

Through what vessels does the oxygenated blood from the lungs enter the heart?

• pulmonary artery

• pulmonary veins

• coronary arteries

• coronary sinus

What blood vessels supply the muscles of the heart with blood?

• coronary sinus

• coronary arteries

• cardiac veins

• venae cavae

What is the muscular layer of the heart?

• endocardium

• myocardium

• epicardium

• pericardium

What is the heart's natural pacemaker?

• bicuspid node

• semilunar node

• atrioventricular node

• sinoatrial node

Tags

NGSS.HS-LS1-3