22 Questions
What is the term for the point where two blood vessels merge?
Anastomosis
What is the function of precapillary sphincters in capillary beds?
To control which beds are well perfused
What is the term for the blood vessel that continues through the capillary bed to the venule?
Thoroughfare channel
What is the term for the connection between an arteriole and a venule?
Arteriovenous anastomosis
What is the term for a network of capillaries?
Capillary bed
What is the term for a blood vessel that supplies a capillary bed?
Metarteriole
Which of the following vessels carries oxygenated blood from the lungs to the left side of the heart?
Pulmonary vein
Which part of the heart receives lesser oxygenated blood from the inferior and superior venae cavae?
Right atrium
What is the primary function of the pulmonary circuit?
To carry blood to the lungs for gas exchange and back to the heart
What is the main difference between the oxygen-rich blood and oxygen-poor blood in the circulatory system?
Oxygen-rich blood has less CO2, while oxygen-poor blood has more CO2
Which of the following is a risk factor for cardiopulmonary conditions?
High blood pressure
What is the term for the innermost layer of a blood vessel that is exposed to blood?
Tunica intima
Which of the following is a complication of cardiopulmonary conditions that must be accounted for when applying exercise interventions?
Respiratory failure
What is the primary function of the systemic circuit?
To supply oxygenated blood to all tissues of the body
What is the primary function of the endothelium in the cardiovascular system?
To produce nitric oxide
Which of the following is a complication that must be accounted for when applying exercise interventions to individuals with cardiopulmonary conditions?
Hypertension
What is the role of shear stress in the cardiovascular system?
To stimulate nitric oxide production
Which of the following is a risk factor for cardiovascular disease that must be considered when applying exercise interventions?
All of the above
What is the primary function of the right and left atria (auricles) in the cardiovascular system?
To receive deoxygenated blood from the body
What is the pathophysiological underpinning of the importance of exercise in the management of cardiovascular conditions?
All of the above
Which of the following is a co-morbidity that must be accounted for when applying exercise interventions to individuals with cardiopulmonary conditions?
All of the above
What is the role of the conduction system in the cardiovascular system?
To coordinate the heartbeat
Study Notes
Cardiovascular System Refresher
- The heart has 4 chambers: right and left atria (auricles) and right and left ventricles
- The pulmonary circuit carries blood to the lungs for gas exchange and back to the heart
- The systemic circuit supplies oxygenated blood to all tissues of the body and returns it to the heart
- Blood flows from the right side of the heart to the lungs and from the left side of the heart to the rest of the body
Circulatory System
- The tunica interna (tunica intima) lines the blood vessel and is exposed to blood
- Endothelium covers the inner surface of blood vessels
- Capillaries are organized into networks called capillary beds
- Precapillary sphincters control which beds are well perfused
- Thoroughfare channels are metarterioles that continue through capillary beds to venules
- Anastomosis is the point where two blood vessels merge
Prevalence of Cardiovascular Disease in Australia
- Cardiovascular disease is a significant health issue in Australia
- The prevalence of cardiovascular disease in Australia is high and requires attention
Pathophysiological Underpinnings
- Endothelial dysfunction is a key factor in cardiovascular conditions
- Nitric oxide plays a crucial role in cardiovascular health
- Inflammation is a critical component of cardiovascular disease
- Shear stress is another important factor in cardiovascular health
Learn about the Cardiovascular System and its components, including the role of exercise in maintaining a healthy heart. This quiz is based on the Week 1 Lecture 2A of EHR519 course.
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