6 Questions
What is the role of the autonomic nervous system in regulating the cardiovascular system?
Preparing the body for physical activity
Which factor can influence cardiac output?
Myocardial contractility
What happens when sphincters in capillaries constrict under autonomic nervous system control?
Restricted blood flow to cells
How does inadequate perfusion contribute to cellular health?
Leads to cellular death
What can result from decreased cardiac output or oxygen delivery to tissues?
Cellular death
How does multiple organ dysfunction syndrome typically occur?
Following severe injuries or infections
Study Notes
- Shock, also known as hypoperfusion, is the collapse and failure of the cardiovascular system, leading to slowed or ceased blood circulation.
- Perfusion is the circulation of blood within an organ or tissue in adequate amounts, requiring the work of the cardiovascular system through systemic and pulmonary circuits.
- Cardiac output is the volume of blood the heart can pump per minute, influenced by factors like myocardial contractility and blood volume.
- The autonomic nervous system regulates the cardiovascular system, with the sympathetic nervous system preparing the body for physical activity and the parasympathetic system for rest.
- Blood flow regulation involves sphincters in capillaries controlled by the autonomic nervous system, adjusting vessel constriction or dilation based on cellular needs.
- Inadequate perfusion can lead to cellular death, and shock can result from factors like decreased cardiac output or oxygen delivery to tissues.
- Multiple organ dysfunction syndrome can occur following severe injuries or infections, leading to systemic immune, inflammatory, and coagulation responses that may cause organ failure.
Test your knowledge on topics related to the cardiovascular system, perfusion, cardiac output, autonomic nervous system regulation, blood flow regulation, inadequate perfusion, shock, and multiple organ dysfunction syndrome.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
