BIO104 Unit 1 Quiz Guide

The average life span of a red blood cell is about

4 months.

________ is a condition in which the oxygen-carrying capacity of RBCs is reduced.

Anemia

The P wave on an ECG represents:

Atrial depolarization

The second heart sound (S2) is caused by:

Pulmonary and aortic valves closing

The right side of the heart pumps blood through the ___________ circuit, while the left side of the heart pumps blood through the ___________ circuit.

Pulmonary; systemic

Blood returning from the systemic circulation via the superior and inferior vena cava must first enter the:

Right atrium

The right atrioventricular valve is also known as the:

Tricuspid valve

Plasma proteins that are necessary for blood to maintain osmotic pressure are

albumins.

During the recycling of hemoglobin, what is the breakdown product of the globular proteins of each hemoglobin molecule?

amino acids

Type AB blood contains

antigens A and B.

Drifting blood clots, air bubbles, or fat globules are called ________.

emboli

Plasma and interstitial fluid account for most of the volume of ________ in the body.

extracellular fluid

Which of the following begins with the activation of plasminogen?

fibrinolysis

The percentage of whole blood volume occupied by cellular elements is termed (the) ________.

hematocrit

The most abundant type of WBC in a normal blood sample is the ________.

neutrophil

A toxin that blocks the stomach's ability to release intrinsic factor causing decreased absorption of vitamin B12 would most likely cause:

pernicious anemia.

The chief difference between plasma and serum involves the

presence/absence of clotting proteins

In adults, the stem cells responsible for the production of red and white blood cells originate primarily in the

red bone marrow.

A blood clot attached to the wall of a vessel is called a(n)

thrombus

The term ________ refers to the combination of plasma and the formed elements together.

whole blood