Podcast
Questions and Answers
Which substance promotes vasoconstriction at the site of injury, contributing to hemostasis?
Which substance promotes vasoconstriction at the site of injury, contributing to hemostasis?
- Serotonin (correct)
- Beta-thromboglobulin
- Plasminogen
- Platelet-derived growth factor
What is the primary function of thromboxane A2 released from platelet membrane phospholipids?
What is the primary function of thromboxane A2 released from platelet membrane phospholipids?
- Promoting clot lysis
- Inhibiting the complement system
- Promoting vasoconstriction at the injury site (correct)
- Assisting in vessel repair
Which substance released from alpha granules in platelets promotes smooth muscle growth for vessel repair?
Which substance released from alpha granules in platelets promotes smooth muscle growth for vessel repair?
- Fibrinogen
- Platelet-derived growth factor (PDGF) (correct)
- High-molecular-weight kininogen (HMWK)
- Platelet factor 4
Which substance acts as a chemotactic agent, attracting fibroblasts to assist in vessel repair?
Which substance acts as a chemotactic agent, attracting fibroblasts to assist in vessel repair?
Which substance released from alpha granules in platelets inhibits plasmin, preventing excessive clot lysis?
Which substance released from alpha granules in platelets inhibits plasmin, preventing excessive clot lysis?
Which substance released from alpha granules in platelets inhibits the complement system, preventing excessive inflammation?
Which substance released from alpha granules in platelets inhibits the complement system, preventing excessive inflammation?
What is the term used to describe the contraction of the blood vessel wall to control bleeding?
What is the term used to describe the contraction of the blood vessel wall to control bleeding?
Which of the following is NOT one of the essential factors required for vascular integrity and resistance to vessel disruption?
Which of the following is NOT one of the essential factors required for vascular integrity and resistance to vessel disruption?
What is the role of circulating platelets in blood vessel injuries?
What is the role of circulating platelets in blood vessel injuries?
Which of the following is a property of adrenocorticosteroids in reducing inflammation?
Which of the following is a property of adrenocorticosteroids in reducing inflammation?
Why is ascorbic acid necessary in the context of collagen synthesis?
Why is ascorbic acid necessary in the context of collagen synthesis?
Which factor released by platelets attracts other cells involved in wound healing to the site of injury?
Which factor released by platelets attracts other cells involved in wound healing to the site of injury?
Which of the following is a platelet stimulating agent that causes platelet aggregation?
Which of the following is a platelet stimulating agent that causes platelet aggregation?
What is the role of von Willebrand factor (vWf) in platelet adhesion?
What is the role of von Willebrand factor (vWf) in platelet adhesion?
Which of the following statements about aspirin's effect on platelets is correct?
Which of the following statements about aspirin's effect on platelets is correct?
What is the sequence of events during platelet secretion?
What is the sequence of events during platelet secretion?
What is the role of vasoconstrictors like thromboxane A2 in hemostasis?
What is the role of vasoconstrictors like thromboxane A2 in hemostasis?
What is the initial event that triggers platelet adhesion after vascular injury?
What is the initial event that triggers platelet adhesion after vascular injury?
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