A & P II: Ch 1

Megakaryocytes that fragment form ________

Platelets

True or False: The total blood volume in an average adult is approximately 10 L.

False

Which of the following is not a formed element?

Plasma

What causes the change in color of blood from bright red to darker red?

The degree of oxygen saturation of hemoglobin

Which of the following best describes the viscosity of blood?

It is five times more viscous than water.

What is the normal pH range for blood in a healthy individual?

7.35 - 7.45

Males have a slightly higher average blood volume than females?

True

The main component of plasma is _________

Water

The most abundant plasma protein is

Albumin

True or False: The blood plasma is slightly more acidic than water.

False

Which of the following is not a function of the plasma proteins?

Carry oxygen

True or False: All globulins are produced by the liver.

False; Gamma globulins are produced by the plasma cells.

A patient has below normal albumin levels. This can indicate that which organ is not functioning properly?

Liver

Which best describes the pressure that draws fluid back into the vasculatrure from the interstitial space?

Colloid osmotic pressure

Which of the following statements accurately describes erythrocytes?

Erythrocytes contain hemoglobin, a protein responsible for oxygen transport. 

Which of the following represents the major components of hemoglobin?

Heme, globin, and iron

Which leukocyte is the most abundant in the blood?

Neutrophil

Which statement correctly differentiates the extrinsic from the intrinsic pathway in coagulation?

The extrinsic pathway, initiated by external trauma and TF, rapidly activates the common pathway; the intrinsic pathway, triggered by endothelial damage, eventually activates factor X in a longer series of steps.