chapter 18 questions
Which of the formed elements arise from myeloid stem cells?
platelets
A patient has been suffering for 2 months with a chronic, watery diarrhea. A blood test is likely to reveal ________.
polycythemia
Which of the following statements about erythropoietin is true?
It facilitates the proliferation and differentiation of the erythrocyte lineage.
Hemophilia is characterized by ________.
inadequate production of clotting factors
5. Which of the following statements about blood is true?
Blood is slightly more viscous than water.
Which of the following statements about albumin is true?
It is the most abundant plasma protein.
Which of the following describes a neutrophil?
abundant, granular, especially effective against bacteria
The process in which antibodies attach to antigens, causing the formation of masses of linked cells, is called ________.
agglutination
Interleukins are associated primarily with which of the following?
all of the above (production of various lymphocytes, immune response, inflammation)
Hemolytic disease of the newborn is a risk during a subsequent pregnancy in which ________.
an Rh− mother is carrying a second Rh+ fetus
T and B lymphocytes ________.
are involved with specific immune function
A patient has been experiencing severe, persistent allergy symptoms that are reduced when she takes an antihistamine. Before the treatment, this patient was likely to have had increased activity of which leukocyte?
basophils
Prothrombin is converted to thrombin during the ________.
common pathway
A molecule of hemoglobin ________.
consists of four globin proteins, each bound to a molecule of heme
The production of healthy erythrocytes depends upon the availability of ________.
copper, zinc, and vitamin B12
People with ABO blood type O ________.
lack both antigens A and B on their erythrocytes
Thrombocytes are more accurately called ________.
platelets
The first step in hemostasis is ________.
vascular spasm
Which of the following statements about mature, circulating erythrocytes is true?
They have no nucleus.
The process by which leukocytes squeeze through adjacent cells in a blood vessel wall is called ________.
emigration
Which of the following plasma proteins is not produced by the liver?
immunoglobulin
Aging and damaged erythrocytes are removed from the circulation by ________.
macrophages
