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