Exam 17: Blood

Platelets release __________ to contract smooth muscles in blood vessels, reducing blood loss.

The extrinsic pathway of coagulation is activated by the release of tissue factor by damaged endothelium.

Secondary polycythemias involve low __________ or increased erythropoietin.

Which of the following while blood cells are important in the production of antibodies?

Self-injection of erythropoietin is becoming more prevalent today among the elderly.

Hemophilia B is caused by __________ of factor IX.

When monocytes migrate into the peripheral tissues, they are called tissue __________.

The red blood cells of a fetus and an adult are the same.

Megakaryocytes develop from hemocytoblasts because of the hormone called __________.

Prothrombinase converts prothrombin into __________.

Which of the following organs is able to break down old and damaged erythrocytes?

Monocytes produce immunoglobulins and engulf debris or pathogens.

Leukocytes and __________ make up less than 1% of whole blood.

Which of the following is not true about neutrophils?

What is the percentage of red blood cells that are replaced every day in the body?

Most neutrophils have a long life span and survive in the bloodstream for 120 days.

Type O blood lacks __________ A and B. Therefore, it can be transfused.

Which of the following are the most numerous white blood cells in blood circulation?

Which of the following is the original cell for all formed elements of blood?

The rate of erythrocyte formation is determined by which of the following?