Podcast
Questions and Answers
Which part of the nervous system controls the circulation?
Which part of the nervous system controls the circulation?
- Central Nervous system
- Somatic Nervous system
- Sympathetic Nervous system (correct)
- Parasympathetic Nervous system
Where do sympathetic vasomotor nerve fibers leave the spinal cord?
Where do sympathetic vasomotor nerve fibers leave the spinal cord?
- Sacral spinal nerves
- Coccygeal spinal nerves
- Lumbar spinal nerves (correct)
- Cervical spinal nerves
How do sympathetic vasomotor nerve fibers reach the circulation?
How do sympathetic vasomotor nerve fibers reach the circulation?
- Through the parasympathetic nervous system
- Through the central nervous system
- Through the sympathetic chain (correct)
- Through the somatic nervous system
What is the innervation of blood vessels?
What is the innervation of blood vessels?
How does sympathetic stimulation affect blood flow through the tissues?
How does sympathetic stimulation affect blood flow through the tissues?
What role does sympathetic stimulation of large vessels, particularly veins, play in the regulation of heart pumping?
What role does sympathetic stimulation of large vessels, particularly veins, play in the regulation of heart pumping?
Which part of the cardiovascular system is mainly innervated by specific sympathetic nerves?
Which part of the cardiovascular system is mainly innervated by specific sympathetic nerves?
Which of the following is true about the sympathetic fibers' effect on the heart?
Which of the following is true about the sympathetic fibers' effect on the heart?
What is the main circulatory effect of the parasympathetic nervous system?
What is the main circulatory effect of the parasympathetic nervous system?
Where is the vasomotor center located?
Where is the vasomotor center located?
What is the role of the vasoconstrictor area in the vasomotor center?
What is the role of the vasoconstrictor area in the vasomotor center?
What is the effect of sympathetic vasoconstrictor tone on blood vessels?
What is the effect of sympathetic vasoconstrictor tone on blood vessels?
What happens when sympathetic nerve impulses are blocked?
What happens when sympathetic nerve impulses are blocked?
What transmitters are involved in the control of heart activity by the vasomotor center?
What transmitters are involved in the control of heart activity by the vasomotor center?
Which receptors detect simultaneous increases in pressure in the low-pressure areas of the circulation?
Which receptors detect simultaneous increases in pressure in the low-pressure areas of the circulation?
What do the low-pressure receptors elicit in response to the increase in volume?
What do the low-pressure receptors elicit in response to the increase in volume?
What response occurs in the vasomotor center during CNS ischemia?
What response occurs in the vasomotor center during CNS ischemia?
What is the effect of the CNS ischemic response on systemic atrial pressure?
What is the effect of the CNS ischemic response on systemic atrial pressure?
What is the Cushing reaction?
What is the Cushing reaction?
What does the abdominal compression reflex help to increase?
What does the abdominal compression reflex help to increase?
What effect does inspiration have on the pressure in the thoracic cavity?
What effect does inspiration have on the pressure in the thoracic cavity?
What effect does the expansion of blood vessels in the chest during inspiration have on cardiac output and arterial pressure?
What effect does the expansion of blood vessels in the chest during inspiration have on cardiac output and arterial pressure?
What is the cardiac index?
What is the cardiac index?
Which of the following best explains the increase in arterial pressure described in the text?
Which of the following best explains the increase in arterial pressure described in the text?
What is the primary purpose of the arterial baroreceptor system?
What is the primary purpose of the arterial baroreceptor system?
Which of the following best describes the function of carotid and aortic chemoreceptors?
Which of the following best describes the function of carotid and aortic chemoreceptors?
What initiates the baroreceptor reflex?
What initiates the baroreceptor reflex?
What is the role of the atria and pulmonary arteries in regulating arterial pressure?
What is the role of the atria and pulmonary arteries in regulating arterial pressure?
What happens when the arterial pressure in the head and upper body tends to fall?
What happens when the arterial pressure in the head and upper body tends to fall?
What are the three major actions that explain the increase in arterial pressure?
What are the three major actions that explain the increase in arterial pressure?
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