Question 1

Which of the chemical signals is released by healthy endothelial tissue in order to prevent overgrowth of platelet plugs?

Accepted Answer

A)  ATP 
B)  Fibrinogen 
C)  Prostacyclin 
D)  Thromboxane 
A)  ATP 
B)  Fibrinogen 
C)  Prostacyclin 
D)  Thromboxane

Question 2

Antibodies are produced by both B and T lymphocytes.

Accepted Answer

A) True 
 B)False

Question 3

Platelets trapped within the fibrous meshwork of the clot ______________

Accepted Answer

A)  release plasmin. 
B)  release prostacyclin. 
C)  retract the clot. 
D)  inactivate thrombin. 
A)  release plasmin. 
B)  release prostacyclin. 
C)  retract the clot. 
D)  inactivate thrombin.

Question 4

Which statement regarding blood cells is correct?

Accepted Answer

A)  All blood cells originate in red bone marrow. 
B)  Red bone marrow is the primary source of all blood cells except mast cells and macrophages. 
C)  Most types of leukocytes appear in equal amounts in the blood. 
D)  Erythrocytes are produced in red marrow while leukocytes are produced primarily in lymph nodes. 
A)  All blood cells originate in red bone marrow. 
B)  Red bone marrow is the primary source of all blood cells except mast cells and macrophages. 
C)  Most types of leukocytes appear in equal amounts in the blood. 
D)  Erythrocytes are produced in red marrow while leukocytes are produced primarily in lymph nodes.

Question 5

All of the constituents present in the plasma are freely diffusible across the capillary walls.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is correct for plasmin?

Accepted Answer

A)  It disposes of fibrin. 
B)  It inhibits red blood cell production. 
C)  It is a cofactor in blood clotting. 
D)  It stimulates fibrin production. 
A)  It disposes of fibrin. 
B)  It inhibits red blood cell production. 
C)  It is a cofactor in blood clotting. 
D)  It stimulates fibrin production.

Question 7

What does haemophilia result from?

Accepted Answer

A)  a deficiency of platelets 
B)  inadequate haemoglobin production 
C)  vitamin B12 deficiency 
D)  inability to produce one of the factors in the clotting cascade 
A)  a deficiency of platelets 
B)  inadequate haemoglobin production 
C)  vitamin B12 deficiency 
D)  inability to produce one of the factors in the clotting cascade

Question 8

Which of the following types of anaemia is caused by a genetic abnormality?

Accepted Answer

A)  Pernicious 
B)  haemorrhagic 
C)  sickle-cell 
D)  Megaloblastic 
A)  Pernicious 
B)  haemorrhagic 
C)  sickle-cell 
D)  Megaloblastic

Question 9

Match the haemostasis step with the correct characteristic by using the answer code (options may be used more than once or not at all):
-prothrombin

Accepted Answer

A) converts fibrinogen to fibrin 
B) when platelets come into contact with this substance in an injured vessel wall, it causes them to adhere and aggregate 
C) when activated, this substance digests the fibrin threads, causing dissolution of the clot 
D) substance released by the platelet plug that causes more platelets to aggregate 
E) first step in haemostasis
F)forms the meshwork of the clot
G)a plasma protein activated by factor X
H)second step in haemostasis
I)released from injured tissues; activates extrinsic clotting pathway
J)third step in haemostasis 
A) converts fibrinogen to fibrin 
B) when platelets come into contact with this substance in an injured vessel wall, it causes them to adhere and aggregate 
C) when activated, this substance digests the fibrin threads, causing dissolution of the clot 
D) substance released by the platelet plug that causes more platelets to aggregate 
E) first step in haemostasis
F)forms the meshwork of the clot
G)a plasma protein activated by factor X
H)second step in haemostasis
I)released from injured tissues; activates extrinsic clotting pathway
J)third step in haemostasis

Question 10

Pathogens are microorganisms that cause ____________________.

Accepted Answer

The answer of Pathogens are microorganisms that cause ____________________....

Question 11

The plasma comprises mostly water.

Accepted Answer

A) True 
 B)False

Question 12

Which statement is true of Haemoglobin?

Accepted Answer

A)  is found in the nuclei of red blood cells. 
B)  contains carbonic anhydrase. 
C)  can combine with O2, CO2, H+, NO, and CO. 
D)  can combine only with O2 molecules 
A)  is found in the nuclei of red blood cells. 
B)  contains carbonic anhydrase. 
C)  can combine with O2, CO2, H+, NO, and CO. 
D)  can combine only with O2 molecules

Question 13

MATCHING
Match these blood disorders with their characteristics by using the answer code (options may be used more than once or not at all):
-lack of intrinsic factor

Accepted Answer

A) aplastic anaemia 
B) pernicious anaemia 
C) haemolytic anaemia 
D) haemorrhagic anaemia 
E) polycythemia
F)leukemia
G)neutrophilia
H)sickle cell anaemia 
A) aplastic anaemia 
B) pernicious anaemia 
C) haemolytic anaemia 
D) haemorrhagic anaemia 
E) polycythemia
F)leukemia
G)neutrophilia
H)sickle cell anaemia

Question 14

What happens in aplastic anaemia?

Accepted Answer

A)  There is insufficient haemoglobin formation due to iron deficiency. 
B)  There is an acute loss of blood. 
C)  Destruction of the bone marrow has occurred due to toxic chemicals or radiation. 
D)  The stomach secretes inadequate intrinsic factor, which is essential for intestinal absorption of vitamin B12. 
A)  There is insufficient haemoglobin formation due to iron deficiency. 
B)  There is an acute loss of blood. 
C)  Destruction of the bone marrow has occurred due to toxic chemicals or radiation. 
D)  The stomach secretes inadequate intrinsic factor, which is essential for intestinal absorption of vitamin B12.

Question 15

Plasma albumins help regulate the blood's osmotic pressure.

Accepted Answer

A) True 
 B)False

Question 16

What are platelets normally attracted to?

Accepted Answer

A)  a collection of white blood cells 
B)  a disrupted surface of a blood vessel 
C)  a smooth surface 
D)  a source of ATP production 
A)  a collection of white blood cells 
B)  a disrupted surface of a blood vessel 
C)  a smooth surface 
D)  a source of ATP production

Question 17

Which of the following leukocytes is implicated in certain allergic reactions and attacks internal parasites such as worms?

Accepted Answer

A)  neutrophils 
B)  eosinophils 
C)  Basophils 
D)  lymphocytes 
A)  neutrophils 
B)  eosinophils 
C)  Basophils 
D)  lymphocytes

Question 18

Fibrinogen is the insoluble clot-forming protein.

Accepted Answer

A) True 
 B)False

Question 19

Which statement concerning erythrocytes is INCORRECT?

Accepted Answer

A)  Erythrocytes do not contain any organelles. 
B)  Erythrocytes may take on many different shapes. 
C)  Erythrocytes originate from the same undifferentiated pluripotential stem cells as leukocytes and platelets. 
D)  Erythrocytes live only about five days. 
A)  Erythrocytes do not contain any organelles. 
B)  Erythrocytes may take on many different shapes. 
C)  Erythrocytes originate from the same undifferentiated pluripotential stem cells as leukocytes and platelets. 
D)  Erythrocytes live only about five days.

Question 20

Which of the following is NOT accomplished by thrombin?

Accepted Answer

A)  stimulates conversion of fibrinogen to fibrin 
B)  activates tissue thromboplastin, which initiates the extrinsic clotting pathway 
C)  activates factor XIII (fibrin-stabilizing factor) 
D)  enhances platelet aggregation 
A)  stimulates conversion of fibrinogen to fibrin 
B)  activates tissue thromboplastin, which initiates the extrinsic clotting pathway 
C)  activates factor XIII (fibrin-stabilizing factor) 
D)  enhances platelet aggregation

Which of the chemical signals is released by healthy endothelial tissue in order to prevent overgrowth of platelet plugs?

Antibodies are produced by both B and T lymphocytes.

Platelets trapped within the fibrous meshwork of the clot ______________

Which statement regarding blood cells is correct?

All of the constituents present in the plasma are freely diffusible across the capillary walls.

Which of the following is correct for plasmin?

What does haemophilia result from?

Which of the following types of anaemia is caused by a genetic abnormality?

Match the haemostasis step with the correct characteristic by using the answer code (options may be used more than once or not at all): -prothrombin

Pathogens are microorganisms that cause ____________________.

The plasma comprises mostly water.

Which statement is true of Haemoglobin?

MATCHING Match these blood disorders with their characteristics by using the answer code (options may be used more than once or not at all): -lack of intrinsic factor

What happens in aplastic anaemia?

Plasma albumins help regulate the blood's osmotic pressure.

What are platelets normally attracted to?

Which of the following leukocytes is implicated in certain allergic reactions and attacks internal parasites such as worms?

Fibrinogen is the insoluble clot-forming protein.

Which statement concerning erythrocytes is INCORRECT?

Which of the following is NOT accomplished by thrombin?

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

Body Defences

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters

Exam 9: The Blood

Which of the chemical signals is released by healthy endothelial tissue in order to prevent overgrowth of platelet plugs?

Antibodies are produced by both B and T lymphocytes.

Platelets trapped within the fibrous meshwork of the clot ______________

Which statement regarding blood cells is correct?

All of the constituents present in the plasma are freely diffusible across the capillary walls.

Which of the following is correct for plasmin?

What does haemophilia result from?

Which of the following types of anaemia is caused by a genetic abnormality?

Match the haemostasis step with the correct characteristic by using the answer code (options may be used more than once or not at all): -prothrombin

Pathogens are microorganisms that cause ____________________.

The plasma comprises mostly water.

Which statement is true of Haemoglobin?

MATCHING Match these blood disorders with their characteristics by using the answer code (options may be used more than once or not at all): -lack of intrinsic factor

What happens in aplastic anaemia?

Plasma albumins help regulate the blood's osmotic pressure.

What are platelets normally attracted to?

Which of the following leukocytes is implicated in certain allergic reactions and attacks internal parasites such as worms?

Fibrinogen is the insoluble clot-forming protein.

Which statement concerning erythrocytes is INCORRECT?

Which of the following is NOT accomplished by thrombin?

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

Body Defences

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters