Exam 3- Blood Hemopoesis Flashcards
Which type of WBC is a precursor of osteoclasts?
Monocytes
What are the functions of albumin, the most common protein in blood plasma?
Maintains fluid within capillaries by osmotic pressure
Contributes to blood’s viscosity.
Which of these is not true about platelets?
Platelets are cells.
Which of these are granulocytes?
Neutrophils
Eosinophils
Basophils
By what mechanism are old RBCs removed from the bloodstream?
Removed by the spleen via filtration and macrophage destruction
Which of these is a function of blood?
Blood helps parts of the body to maintain temperature.
Blood transports oxygen (As O2) bound to hemoglobin
The “granules” within granulocytes store
Cytotoxic substances
Which is the most abundant type of WBC?
Polymorphonuclear leukocytes.
T/F Plasma is about 55% of the volume of blood
TRUE
T/F Platelets are found in the “buffy coat” after centrifugation of blood.
TRUE
T/F Plasma is about 92% water by weight.
TRUE
Which of these are true of platelets?
During the process of clotting they adhere to the basal lamina of vessels.
They originate from megakaryocytes
They promote the formation of fibrin networks in blood clots.
Which of these is true of white blood cells?
WBCs become shaped like ameobae after they leave the circulatory system.
WBCs function in tissue repair.
A hematocrit reading below the normal range signifies
Anemia
What type of WBCs are in general more abundant when humans are infested with helminth parasites?
Eosinophils
Which type of WBC is most similar to mast cells?
Basophils
Erythrocytes are characterized as:
Bi-concave discs with high flexibility
Which of these is not a function of blood?
Production of exocrine secretions.
Which of these are true about bone marrow?
Large numbers of adipocytes are found in yellow bone marrow.
Red bone marrow contains pluripotent stem cells.
Basophilic cells stained with a basic dye usually have nuclei that are
Blue or bluish purple
By weight, what is the ratio of RBCs to WBCs in blood?
44 to 1
Which of the following statements about atherosclerosis is true?
Atherosclerosis is associated with dyslipidemia, hyperglycemia, hypertension, and smoking.
Which is not true of leucocytes?
They have hemogibling
Which of these is true of hemopoeisis?
Colony stimulating factors promote the maturation of granulocytes.
