Question 1

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s). (Options may be used more than once or not at all.)
-fibrin

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

Question 2

Which of these statements applies to 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 possibly to toxic chemicals or radiation. 
D) The stomach secretes inadequate intrinsic factor, which is essential for intestinal absorption of vitamin B₁₂.

Question 3

Match the leukocytes, labelled a. through e., with their correct characteristic. (Options may be used more than once or not at all.)
-produce antibodies

Accepted Answer

A) neutrophils 
B) eosinophils 
C) basophils 
D) monocytes 
E) lymphocytes

Question 4

Match these blood disorders labelled a. through h. with their characteristics. (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) polycythaemia
F)leukaemia
G)neutrophilia
H)sickle cell anaemia

Question 5

Which of the following is NOT a function of white blood cells

Accepted Answer

A) to activate factor XII, which triggers the clotting cascade 
B) to produce antibodies 
C) to destroy cancer cells 
D) to phagocytize foreign invaders

Question 6

Erythroblastosis fetalis can develop between a mother and fetus under which of these circumstances

Accepted Answer

A) Mother is Rh negative and fetus is Rh negative. 
B) Mother is Rh neutral and fetus is Rh negative. 
C) Mother is Rh negative and fetus is Rh positive. 
D) Mother is Rh positive and fetus is Rh negative.

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s). (Options may be used more than once or not at all.)
-formation of a platelet plug

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

Question 9

What form of polycythaemia occurs when an individual lives in a high-altitude environment

Accepted Answer

A) primary 
B) secondary 
C) tertiary 
D) relative

Question 10

The intrinsic clotting pathway stops blood in an injured vessel, whereas the extrinsic pathway clots blood that has escaped into the tissues.

Accepted Answer

A) True 
 B)False

Question 11

Deficiency of which vitamin can cause a bleeding tendency

Accepted Answer

A) vitamin B 
B) vitamin C 
C) vitamin D 
D) vitamin K

Question 12

Which of these cellular elements has the lowest count in the blood

Accepted Answer

A) platelets 
B) neutrophils 
C) erythrocytes 
D) basophils

Question 13

The percentage of whole blood occupied by erythrocytes, known as the ____________________, is normally ____________________ (greater than, less than) the plasma volume.

Accepted Answer

The answer of The percentage of whole blood occupied by...

Question 14

Haemostatic mechanisms are effective for completely arresting bleeding from small vessels, but ruptured medium to large vessels require external intervention to stop the bleeding.

Accepted Answer

A) True 
 B)False

Question 15

Which of these organs produces the hormone that controls erythropoiesis

Accepted Answer

A) pancreas 
B) brain 
C) heart 
D) kidney

Question 16

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s). (Options may be used more than once or not at all.)
-collagen

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

Question 17

Detail the life cycle of an erythrocyte, including the control of erythrocyte production.

Accepted Answer

The answer of Detail the life cycle of an erythrocyte,...

Question 18

Blood is a connective tissue comprising cellular elements and an extracellular matrix of primarily water.What is the name of the blood's extracellular matrix

Accepted Answer

A) haematocrit 
B) fibrinogen 
C) buffy coat 
D) plasma

Question 19

Serum is identical in composition to plasma; that is, both contain all the components of blood except for the blood cells.

Accepted Answer

A) True 
 B)False

Question 20

Describe haemostasis.

Accepted Answer

The answer of Describe haemostasis....

Exam 10: The Blood

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s) . (Options may be used more than once or not at all.) -fibrin

Which of these statements applies to aplastic anaemia

Match the leukocytes, labelled a. through e., with their correct characteristic. (Options may be used more than once or not at all.) -produce antibodies

Match these blood disorders labelled a. through h. with their characteristics. (Options may be used more than once or not at all.) -lack of intrinsic factor

Which of the following is NOT a function of white blood cells

Erythroblastosis fetalis can develop between a mother and fetus under which of these circumstances

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

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s) . (Options may be used more than once or not at all.) -formation of a platelet plug

What form of polycythaemia occurs when an individual lives in a high-altitude environment

The intrinsic clotting pathway stops blood in an injured vessel, whereas the extrinsic pathway clots blood that has escaped into the tissues.

Deficiency of which vitamin can cause a bleeding tendency

Which of these cellular elements has the lowest count in the blood

The percentage of whole blood occupied by erythrocytes, known as the , is normally (greater than, less than) the plasma volume.

Haemostatic mechanisms are effective for completely arresting bleeding from small vessels, but ruptured medium to large vessels require external intervention to stop the bleeding.

Which of these organs produces the hormone that controls erythropoiesis

Match the haemostasis steps, labelled a. through j., with their correct characteristic(s) . (Options may be used more than once or not at all.) -collagen

Detail the life cycle of an erythrocyte, including the control of erythrocyte production.

Blood is a connective tissue comprising cellular elements and an extracellular matrix of primarily water.What is the name of the blood's extracellular matrix

Serum is identical in composition to plasma; that is, both contain all the components of blood except for the blood cells.

Describe haemostasis.