In a centrifuged sample of blood, what makes up the buffy coat?

plasma

red blood cells

white blood cells and platelets

platelets only

white blood cells and platelets , pg 635

The ______ is the fluid portion of the blood.

buffy coat

hematocrit

plasma

hemoglobin

plasma, pg. 635

The main protein in blood plasma is:

plasmin.

albumin.

erythropoietin.

hemoglobin.

albumin, pg. 636

Which of the following might trigger erythropoiesis?

an increased number of RBCs

decreased tissue demand for oxygen

hypoxia of EPO-producing cells

moving to a lower altitude

hypoxia of EPO-producing cells, pg. 639

Which of the formed elements contains hemoglobin and transports respiratory gases?

agranular leukocytes

granular leukocytes

erythrocytes

platelets

erythrocytes, pg. 638

The most abundant leukocytes are:

lymphocytes.

neutrophils.

macrophages.

basophils.

neutrophils, pg. 644

Platelets ________.

stick to the damaged area of a blood vessel and help seal the break

have a life span of about 120 days

are the precursors of leukocytes

have multiple nuclei

stick to the damaged area of a blood vessel and help seal the break, pg. 648

Which sequence is correct for the following events, in the event of Homeostasis?

1. fibrinogen → fibrin
2. clot retraction
3. formation of thromboplastin
4. prothrombin → thrombin

1)formation of thromboplastin, pgs 650-652
2) prothrombin → thrombin
3) fibrinogen → fibrin
4) clot retraction

The universal recipient blood type is ________.

Blood Type "AB", pg. 655

image on I-phone

,pg. 644

Which ABO blood type is considered to be the universal donor?

B

A

O

AB

"O", pg. 655