Wisewire Chapter 18

T and B lymphocytes

are involved with specific immune function

Which of the following statements about blood is true?

blood is more viscous than water

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

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

Hemophilia is characterized by

inadequate production of clotting factors

Which of the following statements about erythropoietin is true?

it facilitates the proliferation and differentiation of the erythrocyte lineage

Which of the following statements about albumin is true?

it is the most abundant plasma protein

People with ABO blood type O

lack both antigens A and B in their erythrocytes

Aging and damaged erythrocytes are removed from the circulation by

macrophages

Thrombocytes are more accurately called

platelets

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 mature, circulating erythrocytes is true?

they have no nucleus

The first step in hemostasis is

vascular spasm

Which of the following describes a neutrophil?

abundant, granular, and 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 the above. (production of various lymphocytes, immune responses, and inflammation)

Hemolytic disease of the newborn is a risk during a subsequent pregnancy in which

an Rh- mother is carrying a second Rh+ fetus

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