blood components & hemostasis MQ Flashcards
Does anemia (a decrease in the number of red blood cells) increase or decrease blood viscosity?
Question 1Select one:
a.
decrease
b.
increase
a.
decrease
Which of the following statements best describes how carbon dioxide is transported in the blood?
Question 2Select one:
a.
Carbon dioxide is transported mostly bound to heme.
b.
Carbon dioxide is transported mostly bound to the globin component of hemoglobin.
c.
Carbon dioxide is transported mostly as bicarbonate ions in the plasma.
d.
Carbon dioxide travels mostly dissolved in plasma.
c.
Carbon dioxide is transported mostly as bicarbonate ions in the plasma.
Match each description to its corresponding blood component.
plasma
white blood cell
platelet
rbc
a. Leukocyte that secretes histamine and heparin.
b. Blood component that transports wastes products such as urea and uric acid.
c. Formed element that adheres to fibrous connective tissue underlying the damaged endothelium of blood vessel walls.
d.Blood cell that carries oxygen.
a. white blood cell
b. plasma
c. platelet
d. rbc
Select which of the following proteins is produced in the liver, circulates in the plasma and is activated by the clotting cascade.
Question 4Select one:
a.
prothrombinase
b.
thrombin
c.
platelets
d.
fibrin
e.
fibrinogen
e.
fibrinogen
plasma
rbc
platelet
wbc
a. Blood cell that produce antibodies.
b. Blood component that transports hormones.
c. Formed element that protects against blood loss.
d. Anuclear blood cell.
a. wbc
b. plasma
c. platelet
d. rbc
Which of the following statements best describes how oxygen is transported in the blood?
Question 6Select one:
a.
Oxygen travels mostly dissolved in plasma.
b.
Oxygen is transported bound to the globin component of hemoglobin.
c.
Oxygen travels mostly as its ionized form in the plasma.
d.
Oxygen is transported mostly bound to the iron component of heme.
d.
Oxygen is transported mostly bound to the iron component of heme.
Which plasma protein is involved in immunity?
immunoglobins
Where are tissue oxygen levels detected?
juxtaglomerular apparatus
Place the statements describing hemostasis in chronological order.
a.
Platelets bind to collagen fibers, become sticky, form a platelet plug and release platelet factor.
b.
Globular plasma fibrinogen proteins are activated and assemble into fibrin fibers which form a stable net that catches red blood cells inside the blood clot.
c.
Damage to the endothelium triggers the release of endothelin and exposes collagen fibers in underlying fibrous connective tissue.
d.
Smooth muscle cells of the blood vessel wall contract, constricting the blood vessel to reduce blood flow.
e.
While the accumulation of platelets temporarily patch the gap in the blood vessel wall, platelet factor activates plasma fibrinogen.
- c
- d
- a
- e
- b
The gene expression of erythropoietin is upregulated in response to hypoxia.
Question 10Select one:
True
False
true
Match each description to its corresponding component of hemostasis.
fibrin
fibrinogen
rbc
platelet factor
endothelium
smooth muscle
anitbody
a. Tissue in blood vessels that secretes endothelin when it is damaged.
b. Fibrous protein which forms a mesh to prevent the loss of red blood cells.
c. Substance released by activated platelets that transform fibrinogen to fibrin.
d. Tissue in blood vessels that contracts in response to stimulation by histamine or endothelin.
e. Globular plasma protein that binds and neutralizes foreign molecules.
f. Globular plasma protein that can be activated to form a blood clot.
a. endothelium
b. fibrin
c. platelet factor
d. smooth muscle
e. antibody
f. fibrinogen
rbc
wbc
platelet
plasma
a. Blood cell that kills and eats bacteria.
b. Blood component that transports antibodies.
c. Smallest formed element in the blood.
d. Most numerous formed element in the blood
a. white blood cell
b. plasma
c. platelet
d. rbc
rbc
wbc
platelet
plasma
a. Biconcave blood cell.
b. Blood constituent that selectively kills cancer cells and virus infected cells.
c. Cell fragment that leads to the production of fibrin fibers.
d. Blood component that transports nutrients such as monosaccharides and amino acids.
a. rbc
b. wbc
c. platelet
d. plasma
Erythropoietin binds to erythropoietin receptors on which target cells?
Question 14Select one:
a.
hepatocytes (liver cells)
b.
pneumocytes (lung cells)
c.
stem cells (bone marrow cells)
d.
cells of the juxtaglomerular apparatus (kidney cells)
c.
stem cells (bone marrow cells)
rbc
wbc
platelet
plasma
a. Blood cell that initiates the clotting cascade.
b. Blood component that distributes oxygen and fibrinogen.
c. Erythrocyte.
d. Cell found at inflammation sites, lymph nodes and in the blood.
a. platelet
b. plasma
c. rbc
d. wbc
Identify the byproducts that result from the regulated replacement of erythrocytes.
biliverdin
iron
globin
stercobilin
urobilin
a. component of hemoglobin is detached from the heme and recycled to the bone marrow to synthesize more heme
b. byproduct of hemoglobin catabolism is excreted in feces via bile production and secretion
c. component of hemoglobin is catabolized to its monomeric form by macrophages and recycled to the red bone marrow
d. metabolic byproduct of hemoglobin catabolism is disposed of in stool
e. metabolic byproduct of hemoglobin catabolism is excreted in urine
a. iron
b.biliverdin
c. globin
d. stercoblin
e. urobilin
True or false? The stimulus for the secretion of erythropoietin is the number of red blood cells.
Question 17Select one:
True
False
false
Select which of the following proteins constitutes the thread of a blood clot.
Question 18Select one:
a.
fibrin
b.
fibrinogen
c.
thrombin
d.
prothrombinase
e.
platelet plug
a. fibrin
Name a plasma protein that is involved in hemostasis.
fibrinogen
Select which of the following forms the temporary plug and initiates the clotting cascade.
Question 20Select one:
a.
fibrin
b.
prothrombinase
c.
platelets
d.
thrombin
e.
fibrinogen
c.
platelets
Which cells secrete erythropoietin?
juxtaglomerular apparatus
