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Human Physiology 2 Body System - Week 8-Blood and Immunology-blood and leucocyte Lecture 3 Flashcards | StudBud
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Human Physiology 2 Body System - Week 8-Blood and Immunology-blood and leucocyte Lecture 3
Human Physiology 2 Body System - Week 8-Blood and Immunology-blood and leucocyte Lecture 3
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Answers
1
What is the process called when healing takes place and unnecessary clots are removed?
Fibrinolysis
Prothromlysis
Thromboplastlysis
Collagenlysis
2
Platelets (thrombocytes) are made in bone marrow as fragments of?
Erythrocytes
Megakaryocytes
Leucocytes
Lymphocytes
3
Vitamin K is involved in the synthesis of 4 clotting factors including?
Aggrombin
Athrombin
Prothrombin
Thrombin
4
When a blood vessel is damaged and blood escapes the vessel wall it undergoes what?
Vasodilation
Vasoconstriction
Aggregation
Coagulation
5
1_____ and long term use of antibiotics reduces 2_____ production by bacteria in the gut
1. Kidney disease 2. Vitamin D
1. Liver disease 2. Vitamin D
1. Liver disease 2. Vitamin K
1. Kidney disease 2. Vitamin K
6
Platelets live for approx ______? in the blood, until removed by the spleen/liver
20 days
15 days
10 days
5 days
7
In coagulation cascade both intrinsic/extrinsic pathways lead to the formation of ______?
Ca2+
Prothrombin
Thromboplastin
Fibrinogen
8
A piece of a thrombus or any other traveling piece of debris in a blood vessel is called a/an?
Embolus
Thrombi
Plasminbus
Fibrinobus
9
Main anticoagulants produced in the body are?
Plasmin, Antithrombin III, Protein C
Heparin, Antithrombin I, Protein X
Heparin, Antithrombin III, Protein C
Plasmin, Antithrombin I, Protein X
10
In blood clotting pathways, which is most true for
intrinsic
pathways?
is slower but results in a more effective clot
is slower
is shorter and faster
is shorter
11
Blood clotting is the formation of a fibrin clot and is called
Tertiary haemostatsis
Secondary haemostasis
Fribrogenisis
Primary haemostasis
12
In blood clotting pathways, which is most true for
extrinsic
pathways?
is slower
is shorter and faster
is shorter
is slower but results in a more effective clot
13
Haemophilia A is a loss of clotting
Factor VIII
Factor VII
Factor V
Factor VI
14
An unwanted blood clot is called a
Thrombus
Plasminbus
Fibrinobus
Embolus
15
Haemophilia B is loss of clotting
Factor IX
Factor XII
Factor X
Factor XI
16
In coagulation most are synthesized in the ____ & circulate in an inactive form until activated
Lungs
Kidney
Liver
Heart
17
Which of the following statements about anticoagulant drug (warfarin) is true?
Creates formation of small blood clots and actions of Vit K
Blocks formation of small blood clots and actions of Vit A
Creates formation of small blood clots and actions of Vit A
Blocks formation of small blood clots and actions of Vit K
18
__? begins with release of tissue factor by damaged peripheral tissues and aggregated platelets
Intrinsic pathway
Exogenous pathway
Extrinsic pathway
Endogenous pathway
19
Which cytokine increases platelet production?
Thrombopoietin (TPO)
Interleukins
Colony stimulating factors (CSFs)
Erythropoietin (EPO)
20
What slowly dissolves a fibrin clot?
Plasmin
Thrombin
Elastin
Fibrin
21
Once the clot has formed what causes the clot to retract
Platelets contract
Collagen contract
Fibrin contract
Blood vessels contract
22
In vasoactive substances platelets release the contents from their granules which is reversible
False
True
23
Which cytokine increases platelet production?
Thrombopoietin (TPO)
Erythropoietin (EPO)
Colony stimulating factors (CSFs)
Interleukins
24
Factor X is crucial for blood clotting, along with factor X the enzyme _____ is formed
Fibrinogen
Thromboplastin
Thrombin
Prothrombinase
25
The 2 major mechanisms which limit clotting within a blood vessel are?
Inhibition of plasma adhesion & fibrin cascade
Inhibition of platelet adhesion & fibrin cascade
Inhibition of plasma adhesion & coagulation cascade
Inhibition of platelet adhesion & coagulation cascade
26
__? begins when enzymes are exposed to collagen fibres at the injury site
Intrinsic pathway
Exogenous pathway
Endogenous pathway
Extrinsic pathway
27
Which of the following are the correct 3 steps of
Haemostasis
?
1. Vasoconstriction 2. Gregation 3. Coagulation
1. Vasoconstriction 2. Aggregation 3. Coagulation
1. Vasodilation 2. Gregation 3. Coagulation
1. Vasodilation 2. Aggregation 3. Coagulation
28
__? caused by roughened vess, imbalanced CF & release of tPA from big amounts of injured tissue
Thromboemboli
Fibrinemboli
Antithromemboli
Plasminemboli
29
Which are the correct 4 steps in the conversion of firbrinogen to fibrin? (Form = fromation)
Activation of X, Initiation, Form fibrin clot, Form thrombin
Activation of X, Initiation, Form thrombin, Form fibrin clot
Initiation, Activation of X, Form fibrin clot, Form thrombin
Initiation, Activation of X, Form thrombin, Form fibrin clot
30
Which of the following is
not
a causative factor in thrombocytopaenia?
Decreased levels of EPO
Radiation therapy
Autoimmunity
Pharmaceutical drugs (Aspirin)
31
Aggregation of platelets in haemostasis can also be described as the
escape of platelets from the blood vessel
escape of collagen from the blood vessel
escape of collagen from the artery
escape of platelets from the artery
32
A deficiency of clotting factor VIII or IX is due to what
Haemophilia
Canophilia
Belonephilia
Hebephilia
33
In aggregation platelets swell and adhere to ____ in the surrounding connective tissue
Protein
Cell wall
Collagen
Calcium
34
Some blood clotting factors are released by platelets
True
False
35
Aggregated platelets release which factor that activates a clotting cascade?
Factor W
Factor V
Factor X
Factor Y
