Check your understanding ch. 17 & ch. 20
The function of B cells in the immune response is ________.
to produce plasma cells that make antibodies
The final step in coagulation is the formation of ________.
Fibrin
This cell is the largest white blood cell. It lacks cytoplasmic granules and has a kidney-shaped nucleus.
Monocyte
This component of blood plasma includes molecules that are important for body defense, osmotic balance, and lipid transport.
Plasma proteins
This formed element is essential for blood clotting.
Platelets
A blood test reveals a large increase in the number of RBCs. One possible explanation for this may be ________.
Polycythemia
Although all of the organs below can raise an immune response, only this one filters the lymph.
lymph nodes
A normal red blood cell count is ________.
4- 6 million/mm3 of blood
The total white blood cell count ranges from ________ to ________ /mm3 of blood.
4800, 10,800
Germinal centers in the cortex of lymph nodes contain primarily ________.
B cells
You performed a blood typing activity in the lab. You observed agglutination (clumping) with anti-B and anti-Rh serum. Based on the test results you can conclude that the blood type you tested was ________.
B+
A person who has symptoms of paleness and chronic fatigue is suspected of having anemia. To investigate this suspicion further, it would be most helpful to measure ________.
Hematocrit
From the choices listed here, the most accurate way to assess the oxygen-carrying capacity of the blood is probably to measure its ________.
Hemoglobin content
A person with type AB blood receives a transfusion of type O blood. Will there be a transfusion reaction? Why or why not?
No: the recipient has no antibodies to antigens A and B, and therefore can receive blood from a type O donor.
What causes the flow of lymph to slow within lymph nodes?
There are more afferent vessels than efferent vessels.
What is not true about antibodies?
They are cells
What is true about blood typing?
Type AB blood contains antigens A and B.
Lymph vessels resemble these vessels of the systemic circulation.
Veins
Which of the following white blood cells are granulocytes?
basophils and neutrophils
In the tonsils, these structures trap bacteria and other foreign material.
crypts
You can recognize these white blood cells because they have a bilobed nucleus and red granules in the cytoplasm.
eosinophil
These white blood cells kill parasitic worms and play a complex role in allergic responses and asthma.
eosinophils
Lymph in the cisterna chyli differs in composition from lymph in the general lymphatic stream in that it contains more ________.
fat
Antigens that can provoke an immune response include ________.
foreign proteins, polysaccharides, and small molecules, called haptens that link to our own body proteins
Normally, the amount of plasma in whole blood is ________ than the amount of formed elements; plasma makes up approximately ________ percent of whole blood.
greater; 55
B cells provide this kind of immunity.
humoral
This medullary region of the lymph node contains primarily ________.
macrophages
Platelets are cell fragments of large multinucleate cells called ________.
megakaryocytes
These are the most abundant leukocytes, constituting 40-70% of all white blood cells.
neutrophils (Never let monkeys eat bananas)
Granulocytes include ________.
neutrophils, eosinophils, basophils (BEN)
Select the mechanism below that is not involved in the flow of lymph through the lymphatic vessels.
pumping action of the heart
The most numerous blood cells are ________.
red blood cells
The functions of the lymph system include all of the following except ________.
removing worn out erythrocytes from the system
The lymphatic system consists of lymphatic vessels, lymphatic tissue, lymph nodes, and lymphoid organs such as ________.
spleen and thymus
The hematocrit measures ________.
the percentage of RBC in a blood sample
The right lymphatic duct drains ________
the right side of the head and thorax, and the right upper extremity
The ________ receives lymph from the left half of the body and part of the right side as well.
thoracic duct
The ________ pulp is responsible for the immune functions of the spleen.
white
