Ch 8 Test Review

Front

Who discovered platelets and in what year?

Back

Sir William Osler discovered platelets in 1874.

Front

What determines a person's blood type?

Back

The presence or absence of antigens on red blood cells determines a person's blood type.

Front

What is blood splatter evidence used for?

Back

Blood splatter evidence is used in crime scene analysis.

Front

What do red blood cells carry?

Back

Red blood cells carry respiratory gases, mainly oxygen and carbon dioxide.

Front

How does the shape of a blood droplet change as the angle of release decreases from 90 degrees to 10 degrees?

Back

The blood droplet becomes more long than wide.

Front

What is the primary function of platelets?

Back

The primary function of platelets is to aid in blood clotting.

Front

What role do white blood cells play in the body?

Back

White blood cells fight disease and foreign invaders.

Front

What is the significance of antigens in blood?

Back

Antigens determine blood type and can trigger immune responses.

Front

What happens to blood droplets when they hit a surface at a low angle?

Back

They create elongated stains due to the angle of impact.

Front

What is the function of hemoglobin in red blood cells?

Back

Hemoglobin binds to oxygen and carries it from the lungs to the body's tissues.