Exam 20: The Cardiovascular System: Blood

In terms of organelles, an obvious difference between a mature erythrocyte and a leukocyte, viewed through a light microscope, is that the erythrocyte lacks ________.

The matrix of the blood, which has a density only slightly greater than water is called plasma.

The hormone erythropoietin is produced and secreted by the ________ during hypoxic conditions.

A round leukocyte whose nucleus resembles a string of beads, and whose cytoplasm contains large, pale inclusions, is a(n)________.

Circulating platelets last about 10 to 12 days before they are broken down and their contents recycled.

Discuss the concept of "plasma expanders," often used for patients who are preparing for whole blood transfusions.

Figure 20.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label C.

A leukocyte with distinct bright orange-red cytoplasmic granules is called a(n)________.

The plasma of the blood contains about 7% ________.

Individuals with type B blood have plasma that contains anti-B antibodies.

Figure 20.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label B.

Which are characteristic of type O blood? A: Has anti-A antibodies B: Has anti-B antibodies C: Has surface antigen O on its erythrocytes D: Has surface antigen A on its erythrocytes E: Has neither surface antigen A nor B on its erythrocytes

Membrane-enclosed enzyme packets are called platelets.

Which of the following are plasma proteins that are an essential component of the clotting system?

Basophils assist mast cells of tissues in producing inflammation.

A college student who is constantly dieting decides to go to the dining hall, as she has no energy, is experiencing muscular weakness, and sometimes becomes dizzy upon exertion. What is the likely diagnosis, and what is the cause of this condition?

Plasma proteins that attack foreign proteins and pathogens are ________.

Albumins in blood are important because they ________.

Figure 20.1 Identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label B.

Which formed elements of blood lose most of their organelles during differentiation and maturation?