Podcast
Questions and Answers
Which area inhibits the activity of the vasoconstrictor area?
Which area inhibits the activity of the vasoconstrictor area?
- Vasodilator Area (correct)
- Tractus Solitarius
- Central Vasomotor Centers
- Sensory Area
Which nerve carries parasympathetic nerve activity to the heart?
Which nerve carries parasympathetic nerve activity to the heart?
- Vagus nerve (correct)
- Atrial nerve
- Sympathetic nerve
- Baroreceptor nerve
Which neurotransmitter is associated with alpha adrenergic receptors?
Which neurotransmitter is associated with alpha adrenergic receptors?
- Serotonin
- Norepinephrine (correct)
- Dopamine
- Epinephrine
Which blood vessels are innervated by sympathetic fibers?
Which blood vessels are innervated by sympathetic fibers?
Which neurotransmitter is associated with beta adrenergic receptors?
Which neurotransmitter is associated with beta adrenergic receptors?
What can activation of sympathetic vasodilatory fibers cause?
What can activation of sympathetic vasodilatory fibers cause?
What happens to basal blood pressure when sympathetic nerve activity is blocked?
What happens to basal blood pressure when sympathetic nerve activity is blocked?
Which branch of the autonomic nervous system has the most powerful influence on vascular tone and cardiac function?
Which branch of the autonomic nervous system has the most powerful influence on vascular tone and cardiac function?
What effect does the sympathetic nervous system have on veins?
What effect does the sympathetic nervous system have on veins?
Which area in the brain stem transmits sympathetic impulses to blood vessels?
Which area in the brain stem transmits sympathetic impulses to blood vessels?
What is the main function of the vasoconstrictor area in the brain stem?
What is the main function of the vasoconstrictor area in the brain stem?
Which part of the circulation does not have autonomic innervation?
Which part of the circulation does not have autonomic innervation?
What is the effect of the parasympathetic nervous system on cardiac function?
What is the effect of the parasympathetic nervous system on cardiac function?
Which branch of the autonomic nervous system has a small effect on cardiac contractility?
Which branch of the autonomic nervous system has a small effect on cardiac contractility?
Which component of the baroreflex control system detects arterial pressure by sensing wall stretch?
Which component of the baroreflex control system detects arterial pressure by sensing wall stretch?
Which region of the brain is responsible for processing the signals from the baroreceptors?
Which region of the brain is responsible for processing the signals from the baroreceptors?
Which nerve pathway is responsible for transmitting the signals from the carotid baroreceptors to the NTS?
Which nerve pathway is responsible for transmitting the signals from the carotid baroreceptors to the NTS?
At what range of arterial pressure are the baroreceptors most sensitive?
At what range of arterial pressure are the baroreceptors most sensitive?
What happens to the baroreceptor discharge when there are small changes in blood pressure near the normal MAP range?
What happens to the baroreceptor discharge when there are small changes in blood pressure near the normal MAP range?
What is the primary function of the baroreceptor system?
What is the primary function of the baroreceptor system?
What happens to the baroreceptors when they are exposed to sustained changes in blood pressure?
What happens to the baroreceptors when they are exposed to sustained changes in blood pressure?
Which reflex is activated when mean arterial pressure falls below 60 mm Hg?
Which reflex is activated when mean arterial pressure falls below 60 mm Hg?
Which reflex increases blood pressure to ensure sufficient blood supply to the brain?
Which reflex increases blood pressure to ensure sufficient blood supply to the brain?
Which reflex is activated by an increase in atrial pressure and causes an increase in heart rate?
Which reflex is activated by an increase in atrial pressure and causes an increase in heart rate?
Which reflex is activated by low pressure receptors in the atria and pulmonary arteries?
Which reflex is activated by low pressure receptors in the atria and pulmonary arteries?
Which reflex cuts off blood supply to activate the CNS ischemic response?
Which reflex cuts off blood supply to activate the CNS ischemic response?
Which reflex is activated by stretch of the sinus node and increases heart rate?
Which reflex is activated by stretch of the sinus node and increases heart rate?
Which reflex is also known as the Atrial Reflex Control of the Heart?
Which reflex is also known as the Atrial Reflex Control of the Heart?
Which reflex mechanism is activated by changes in arterial pressure?
Which reflex mechanism is activated by changes in arterial pressure?
Which reflex mechanism is activated by low pressure receptors in the atria and pulmonary arteries?
Which reflex mechanism is activated by low pressure receptors in the atria and pulmonary arteries?
