Skip to main content
Ch. 17 Blood
Hoehn - Marieb Human Anatomy & Physiology, 12th edition
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoHoehn, Haynes, Abbott 12th EditionCh. 17 BloodProblema 18
Capitolo 17, Problema 18

Define fibrinolysis
What is the importance of this process?

Guida verificata passo dopo passo
1
Step 1: Define fibrinolysis as the biological process that breaks down fibrin, the protein mesh that stabilizes blood clots, to prevent excessive clotting and maintain normal blood flow.
Step 2: Explain that fibrinolysis involves the activation of plasminogen into plasmin, an enzyme that digests fibrin strands, effectively dissolving the clot.
Step 3: Describe the importance of fibrinolysis in maintaining vascular health by removing clots once they have served their purpose, thus preventing blockages in blood vessels.
Step 4: Highlight that fibrinolysis helps to balance clot formation and breakdown, ensuring that wounds heal properly without leading to thrombosis or hemorrhage.
Step 5: Emphasize that dysregulation of fibrinolysis can lead to medical conditions such as excessive bleeding or pathological clot formation, underlining its critical role in hemostasis.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
3m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Fibrinolysis

Fibrinolysis is the biological process that breaks down fibrin, the protein mesh that stabilizes blood clots. This process helps dissolve clots once they have served their purpose, preventing excessive clotting and maintaining normal blood flow.
Video consigliato:
Percorso guidato
7:16
Clot Retraction & Fibrinolysis

Role of Plasmin

Plasmin is the key enzyme responsible for fibrinolysis. It is activated from plasminogen and functions by degrading fibrin into soluble fragments, effectively dissolving the clot and restoring vessel patency.
Video consigliato:
Percorso guidato
7:16
Clot Retraction & Fibrinolysis

Physiological Importance of Fibrinolysis

Fibrinolysis is crucial for preventing pathological thrombosis, which can block blood vessels and cause conditions like stroke or heart attack. It balances clot formation and breakdown, ensuring blood vessels remain open and tissue perfusion is maintained.
Video consigliato:
Percorso guidato
7:16
Clot Retraction & Fibrinolysis
Pratica correlata
Domanda del libro di testo

Describe the appearance of platelets and state their major function

Why should platelets not be called 'cells'?

1322
views
Domanda del libro di testo

Besides the ability to move by amoeboid motion, what other physiological attributes contribute to the function of white blood cells in the body?

1019
views
Domanda del libro di testo

How is clot overgrowth usually prevented?

List two conditions that may lead to unnecessary (and undesirable) clot formation.

707
views
Domanda del libro di testo

Alan Forsythe, a middle-aged college professor from Boston, is in the Swiss Alps studying astronomy during his sabbatical leave. He has been there for two days and plans to stay the entire year. However, he notices that he is short of breath when he walks up steps and tires easily with any physical activity. His symptoms gradually disappear, and he feels fine after less than a month. Upon returning to the United States, he has a complete physical exam and is told that his erythrocyte count is higher than normal.

a. Attempt to explain this finding.

b. Will his RBC count remain at this higher-than-normal level? Why or why not?

763
views
Domanda del libro di testo

If you had a severe infection, would you expect your WBC count to be closest to 5000, 10,000, or 15,000/μl?

What is this condition called?

980
views
Domanda del libro di testo

How can poor nutrition lead to anemia?

762
views