Podcast
Questions and Answers
What are the three factors that vascular resistance depends on?
What are the three factors that vascular resistance depends on?
- Size of the blood vessel lumen, blood pressure, and blood volume
- Size of the blood vessel lumen, blood viscosity, and total blood vessel length (correct)
- Blood viscosity, heart rate, and stroke volume
- Total blood volume, heart rate, and size of the blood vessel lumen
Where is the cardiovascular (CV) center located?
Where is the cardiovascular (CV) center located?
- Hypothalamus
- Pons
- Cerebellum
- Medulla oblongata (correct)
Which receptors provide input to the CV center during physical activity?
Which receptors provide input to the CV center during physical activity?
- Proprioceptors and chemoreceptors (correct)
- Baroreceptors and chemoreceptors
- Proprioceptors and baroreceptors
- Proprioceptors, baroreceptors, and chemoreceptors
What are the factors controlled by the interconnected negative feedback systems for blood pressure regulation?
What are the factors controlled by the interconnected negative feedback systems for blood pressure regulation?
How does blood pressure depend on the total volume of blood in the cardiovascular system?
How does blood pressure depend on the total volume of blood in the cardiovascular system?
Which factor is NOT a component affecting vascular resistance?
Which factor is NOT a component affecting vascular resistance?
What is the primary function of arterioles in the blood flow process?
What is the primary function of arterioles in the blood flow process?
Which vessel type is responsible for permitting the exchange of nutrients and wastes between cells and blood?
Which vessel type is responsible for permitting the exchange of nutrients and wastes between cells and blood?
What is the term used to describe the automatic adjustment of blood flow in response to tissue metabolic demands?
What is the term used to describe the automatic adjustment of blood flow in response to tissue metabolic demands?
What is the main function of capillary blood hydrostatic pressure in the capillary exchange process?
What is the main function of capillary blood hydrostatic pressure in the capillary exchange process?
What is the role of blood colloid osmotic pressure in capillary exchange?
What is the role of blood colloid osmotic pressure in capillary exchange?
How does the lymphatic system contribute to maintaining blood volume?
How does the lymphatic system contribute to maintaining blood volume?
What is the major cause of heart disease and death in older Americans?
What is the major cause of heart disease and death in older Americans?
Which condition increases with age and is associated with congestive heart failure and atherosclerosis?
Which condition increases with age and is associated with congestive heart failure and atherosclerosis?
What is the most common disorder affecting the heart and blood vessels?
What is the most common disorder affecting the heart and blood vessels?
What is shock in terms of the cardiovascular system?
What is shock in terms of the cardiovascular system?
What can happen if an untreated aneurysm enlarges?
What can happen if an untreated aneurysm enlarges?
What causes a thin, weakened section of the wall of an artery or vein that bulges outward forming a balloon-like sac?
What causes a thin, weakened section of the wall of an artery or vein that bulges outward forming a balloon-like sac?
Where are chemoreceptors located in the human body?
Where are chemoreceptors located in the human body?
Which hormones help regulate blood pressure and blood flow by altering cardiac output?
Which hormones help regulate blood pressure and blood flow by altering cardiac output?
What happens in response to low O2, high CO2, or H+ levels in the blood?
What happens in response to low O2, high CO2, or H+ levels in the blood?
What is the role of antidiuretic hormone (ADH) in blood flow regulation?
What is the role of antidiuretic hormone (ADH) in blood flow regulation?
Which receptors send impulses to the cardiovascular center to regulate blood pressure?
Which receptors send impulses to the cardiovascular center to regulate blood pressure?
Which hormone causes decreased blood volume and vasodilation?
Which hormone causes decreased blood volume and vasodilation?
Which blood vessels carry deoxygenated blood from the right ventricle to the lungs?
Which blood vessels carry deoxygenated blood from the right ventricle to the lungs?
Where does the oxygenated blood return to after circulation through the lungs?
Where does the oxygenated blood return to after circulation through the lungs?
Which of the following is NOT considered a major systemic artery?
Which of the following is NOT considered a major systemic artery?
Which vein is responsible for draining blood from the head and neck?
Which vein is responsible for draining blood from the head and neck?
What is the main function of the vena cava in the circulatory system?
What is the main function of the vena cava in the circulatory system?
Which artery supplies blood to the stomach and other digestive organs?
Which artery supplies blood to the stomach and other digestive organs?
