Predict how abnormal hemoglobin proteins that contain only two iron ions, instead of four, would affect homeostasis.

Predict the effects of each of the following on systemic arterial blood pressure:

a. The practice of 'blood doping,' which increases the number of red blood cells in the blood

Predict the effects of each of the following on systemic arterial blood pressure:

c. Blood loss from a bleeding ulcer

Which of the following is not a formed element of blood?

a. Erythrocyte

b. Leukocyte

c. Mast cell

d. Platelet

Fill in the blanks: Lymphocytes are derived from the_____cell line, whereas the other leukocytes are derived from the_____cell line.

Ex​​plain how blood, being a liquid, enables all its components (formed elements and plasma) to perform their functions.

A blood sample from your patient shows that she has decreased numbers of neutrophils. Predict the effects of this co​​ndition. How would it differ if numbers of T lymphocytes were decreased instead?

Platelets are derived from cells called:

a. thromboblasts.

b. leukoblasts.

c. megakaryocytes.

d. thrombokaryocytes.

Number the steps of hemostasis in order, putting 1 by the first event, 2 by the second, and so on.      

____The intrinsic/contact activation and extrinsic/tissue factor pathways produce factor Xa.      

____The clot retracts.      

____Thrombin converts fibrinogen to fibrin, and fibrin glues the plug together.      

____Platelets are activated, and the platelet plug forms.      

____Vasoconstriction and increased tissue pressure decrease blood flow through the vessel.      

____Tissue plasminogen activator activates plasmin, which degrades fibrin.      

____The common pathway produces thrombin.

​​How do the intrinsic/contact activation and extrinsic/tissue factor coagulation pathways differ? How are they similar?

What are the overall goals of the common pathway of coagulation?

Which of the following is not an anticlotting agent produced by endothelial cells?

a. Prostacyclin

b. Protein C

c. Antithrombin-III

d. Warfarin

Tissue plasminogen activator, urokinase, and plasmin are important components of:

a. coagulation.

b. fibrinolysis.

c. platelet plug formation.

d. hemostasis.

Fill in the blanks: The two most clinically important groups of antigens on erythrocytes are the______and______blood groups.

Which antigens does a person with blood type A− have on the surface of his or her erythrocytes?

a. A antigens

b. B antigens

c. Rh antigens

d. Both a and c are correct.

e. All of the above

Which of the following antibodies does a person with type O+ blood have in his or her plasma?

a. Anti-A antibodies

b. Anti-B antibodies

c. Anti-Rh antibodies

d. Both a and b are correct.

e. All of the above

Which of the following plasma proteins is responsible for osmotic pressure?

a. γ-Globulins

b. Albumin

c. α-Globulins

d. Clotting proteins

Mr. Reczkiewicz has blood type AB−. Which of the following blood types could be safely donated to Mr. Reczkiewicz, assuming he has had prior exposure to Rh+ blood? (Circle all that apply.)

a. Type O+

b. Type A−

c. Type B−

d. Type AB+

e. Type O−

Mr. Jackson presents to the emergency room with a minor wound that has bled for several days. An examination of his medical history reveals that Mr. Jackson has hemophilia A, which is caused by a deficiency of factor VIII. Your co-worker suggests that you give Mr. Jackson some platelets to stop the bleeding. Will this help your patient? Why or why not?

The anticoagulant drug warfarin primarily disrupts the extrinsic/tissue factor coagulation pathway. Explain why disrupting only this pathway disrupts the entire coagulation cascade.

Ms. Wu, whose blood type is O−, requires a blood transfusion. Her family members volunteer to donate blood. Their blood types are as follows: her son, type B−; her husband, type B+; her daughter, type O+. Which family members could safely donate blood to Ms. Wu? Who could not? Explain.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. Erythrocytes are biconcave discs with prominent nuclei.

Elise​​ is a 36-year-old woman who has volunteered to donate red bone marrow to a patient in need of a bone marrow transplant for aplastic anemia. The physician performing the bone marrow extraction is an intern, and it is her first time doing the procedure. She asks that you prepare a site on Elise's tibia for the procedure. Is this a good place for red bone marrow to be extracted, considering Elise's age? Why or why not? Can you suggest an alternative location? Explain.

Cirrhosis of the liver often reduces production of many types of plasma proteins, including albumin and clotting factors. Predict the effects on the body of decreased numbers of these proteins in the plasma. Would this also affect the number of γ-globulins in the plasma? Why or why not?

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. The main function of erythrocytes is to transport oxygen on the protein hemoglobin.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

c. Hemoglobin forms oxyhemoglobin when it binds to oxygen.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

d. Hemoglobin consists of two polypeptide chains bound to a heme group.

Erythropoiesis requires stimulation from the hormone:

a. thrombin.

b. thrombopoietin.

c. thymosin.

d. erythropoietin.

Fill in the blanks: Erythrocytes are derived from stem cells called____ , circulate in the blood for approximately _______days, and are destroyed by an organ called the ______ .

Anemia is defined as:

a. a decreased oxygen-carrying capacity of the blood.

b. a decreased iron content of the blood.

c. decreased bone marrow function.

d. abnormalities in hemoglobin.