Blood Basics
White Blood Cells
Plug It Up!
What's Your Type?
Heart Of The Matter
100

The fluid portion of blood, composed mostly of water.

What is plasma?

100

White blood cells that fight infection by phagocytosis.

What are neutrophils?

100

The body’s process for stopping blood loss.

What is hemostasis?

100

The universal donor blood type.

What is type O?

100

The phase of the cardiac cycle when ventricles relax.

What is diastole?

200

The cells and cell fragments of blood produced by bone marrow.

What are the formed elements of blood?

200

Leukocytes that release histamine and heparin.

What are basophils?

200

The first stage of hemostasis involving narrowing of blood vessels.

What is vasoconstriction?

200

The universal recipient blood type.

What is type AB⁺?

200

One complete round of systole and diastole.

hat is the cardiac cycle?

300

The blood cells responsible for carrying oxygen.

What are erythrocytes?

300

Anti-inflammatory leukocytes involved in parasite defense.

What are eosinophils?

300

The plug formed during platelet plug formation.

What is a thrombus?

300

The antigen whose presence makes someone Rh-positive.

What is the Rh antigen?

300

The smallest arteries that still contain all three tunics.

What are arterioles?

400

Cell fragments that help prevent blood loss.

What are platelets?

400

Leukocytes responsible for producing antibodies.

What are lymphocytes?

400

The protein produced in stage three of coagulation.

What is fibrin?

400

The type of pressure measured during ventricular contraction.

What is systolic pressure?

400

The circulation between the heart and lungs.

What is pulmonary circulation?

500

The process by which the body produces blood cells.

What is hemopoiesis?

500

The movement of white blood cells toward chemical signals.

What is chemotaxis?

500

Proteins in plasma that are especially important in stage one of coagulation.

What are coagulation factors?

500

The type of blood vessel with the lowest blood pressure.

What are veins?

500

The heart’s natural pacemaker.

What is the sinoatrial (SA) node?