Blood Components Pre-Flashcard

Front

Where are erythrocytes produced?

Back

In the red bone marrow.

Front

Approximately how many erythrocytes are there in each milliliter of blood?

Back

About 5 million.

Front

Which of the following statements is true about leukocytes?

Back

They always contain nuclei.

Front

How do erythrocytes and leukocytes differ in terms of their presence in the bloodstream?

Back

Erythrocytes are confined to the bloodstream, while leukocytes can move out of it.

Front

What does each heme in the globin chains hold?

Back

An iron atom.

Front

What is the primary function of erythrocytes?

Back

To transport oxygen from the lungs to the body's tissues.

Front

What is the role of leukocytes in the body?

Back

To defend against infections and foreign substances.

Front

What component of blood is responsible for clotting?

Back

Platelets.

Front

What is the average lifespan of an erythrocyte?

Back

About 120 days.

Front

What is the main component of hemoglobin?

Back

Iron.