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Cardiovascular System 3.3 - Blood

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Questions and Answers

What is the primary goal of haemostasis?

To promote blood flow
To reduce blood pressure
To stop haemorrhage from damaged blood vessels (correct)
To increase blood viscosity

What is the primary function of platelet plugs in haemostasis?

To increase blood flow to the affected area
To dissolve blood clots
To form a physical barrier to stop bleeding (correct)
To stimulate blood coagulation

Which organs are responsible for producing proteins that stabilise the platelet plug in secondary haemostasis?

Lungs
Heart
Liver (correct)
Kidneys

What is the difference between primary and secondary haemostasis?

Primary haemostasis involves platelet plugs, while secondary haemostasis involves clotting factors (A) Signup and view all the answers

What is the term for slowing or stoppage of blood flow?

Stasis (B) Signup and view all the answers

What happens when damage occurs to a blood vessel wall?

Platelets are activated and adhere to the site (A) Signup and view all the answers

What do activated thrombocytes release to facilitate platelet plug formation?

Substances that make them sticky to other thrombocytes (B) Signup and view all the answers

What is the primary purpose of a platelet plug in haemostasis?

To initially plug the defect, but not a long-term solution (C) Signup and view all the answers

What is the outcome of activated thrombocytes recruiting and adhering to other thrombocytes?

Platelet plug formation (A) Signup and view all the answers

How often does platelet plug formation occur in the body?

Throughout the body on a daily basis (A) Signup and view all the answers

What is the result of coagulation factors being activated in the process of haemostasis?

Stabilization of the platelet plug by fibrin (B) Signup and view all the answers

What type of cells may become trapped in the platelet plug, making it stronger?

Both red and white blood cells (D) Signup and view all the answers

What is the term for the formation of a thrombus?

Secondary haemostasis (C) Signup and view all the answers

What is the role of fibrin in the process of haemostasis?

To stabilize the platelet plug (C) Signup and view all the answers

What is the final product of the secondary haemostasis process?

A thrombus (A) Signup and view all the answers