Entries by Hannah Wangui

A sympathetic B parasympathetic 2. What is the stimulus that causes depolarization of baroreceptors (i.e., specialized neurons that monitor pressure in major arteries)? A Binding of chemicals to ligand-gated channels in the baroreceptor membrane. B Binding of chemicals to mechanical-gated channels in the baroreceptor membrane. C Stretch of arterial walls opening ligand-gated channels in the baroreceptor membrane. D Stretch of arterial walls opening mechanical-gated channels in the baroreceptor membrane. 3. Which of the following events are considered visceral motor actions? Choose all that apply. A Increase of action potentials from baroreceptors to brain cardiovascular control centers B. Release of acetylcholine from cardioinhibitory neurons C. Neurons stimulating the release of epinephrine and norepinephrine from the adrenal gland D. Communication between neurons WITHIN the cardiovascular control centers of the medulla (hindbrain) 4. An increase in cardiac output will help to raise blood pressure. A. True B. False 5. Looking at the big picture in Worksheet 8, the visceral motor events completed (either sympathetic or parasympathetic) to help return the blood pressure to a homeostatic setpoint are part of ________________ feedback loops. A. negative B. positive A Binding of chemicals to ligand-gated channels in the baroreceptor membrane. B Binding of chemicals to mechanical-gated channels in the baroreceptor membrane. C Stretch of arterial walls opening ligand-gated channels in the baroreceptor membrane. D Stretch of arterial walls opening mechanical-gated channels in the baroreceptor membrane. 3. Which of the following events are considered visceral motor actions? Choose all that apply. A Increase of action potentials from baroreceptors to brain cardiovascular control centers B. Release of acetylcholine from cardioinhibitory neurons C. Neurons stimulating the release of epinephrine and norepinephrine from the adrenal gland D. Communication between neurons WITHIN the cardiovascular control centers of the medulla (hindbrain) 4. An increase in cardiac output will help to raise blood pressure. A. True B. False 5. Looking at the big picture in Worksheet 8, the visceral motor events completed (either sympathetic or parasympathetic) to help return the blood pressure to a homeostatic setpoint are part of ________________ feedback loops. A. negative B. positive

August 19, 2019 in /by

A sympatheticB parasympathetic 2.What is the stimulus that causes depolarization of baroreceptors (i.e., specialized neurons that monitor pressure in major arteries)? A Binding of chemicals to ligand-gated channels in the baroreceptor membrane. B Binding of chemicals to mechanical-gated channels in the baroreceptor membrane. C Stretch of arterial walls opening ligand-gated channels in the baroreceptor membrane. D […]

 

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1.The structure where the nasal cavity and oral cavity connect at the back of the throat is called the ___________. Answer must be spelled correctly. 2.It is normal for food to pass down the trachea. T or F 3.The tiny air sacs at the end of the bronchioles are called ____________. Answer must be spelled correctly 4.Pulmonary arteries carry ______________ blood (deoxygenated or oxygenated) 5.An increase in the volume of our lungs causes inhalation. T or F. 2.It is normal for food to pass down the trachea. T or F 3.The tiny air sacs at the end of the bronchioles are called ____________. Answer must be spelled correctly 4.Pulmonary arteries carry ______________ blood (deoxygenated or oxygenated) 5.An increase in the volume of our lungs causes inhalation. T or F

August 19, 2019 in /by

1.The structure where the nasal cavity and oral cavity connect at the back of the throat is called the ___________. Answer must be spelled correctly. 2.It is normal for food to pass down the trachea. T or F 3.The tiny air sacs at the end of the bronchioles are called ____________.  Answer must be spelled correctly 4.Pulmonary […]

 

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.What is the main function of the semilunar (aortic and pulmonary) valves? To prevent the flow of blood from atria to ventricles during atrial systole To prevent the flow of blood from veins to atria during the quiescent period To prevent the flow of blood from ventricles to atria during ventricular ejection To prevent the flow of blood from arteries back into the ventricles during isovolumetric relaxation 2. During atrial systole, which of the following pressure gradients exist? Higher pressure in atria compared to ventricles Higher pressure in ventricles compared to atria Higher pressure in ventricles compared to arteries Same pressure in atria and ventricles 3. In the heart, blood will flow from areas of high pressure to areas of low pressure (assuming no valves are present). True False 4. Which stage of the cardiac cycle helps to fill ventricles to maximum blood volume? Quiescent period Atrial systole Ventricular ejection Isovolumetric relaxation 5. During the quiescent period, blood is ONLY passively filling the atria (i.e., there is not blood in the ventricles). True False To prevent the flow of blood from atria to ventricles during atrial systole To prevent the flow of blood from veins to atria during the quiescent period To prevent the flow of blood from ventricles to atria during ventricular ejection To prevent the flow of blood from arteries back into the ventricles during isovolumetric relaxation 2. During atrial systole, which of the following pressure gradients exist? Higher pressure in atria compared to ventricles Higher pressure in ventricles compared to atria Higher pressure in ventricles compared to arteries Same pressure in atria and ventricles 3. In the heart, blood will flow from areas of high pressure to areas of low pressure (assuming no valves are present). True False 4. Which stage of the cardiac cycle helps to fill ventricles to maximum blood volume? Quiescent period Atrial systole Ventricular ejection Isovolumetric relaxation 5. During the quiescent period, blood is ONLY passively filling the atria (i.e., there is not blood in the ventricles). True False

August 19, 2019 in /by

.What is the main function of the semilunar (aortic and pulmonary) valves?To prevent the flow of blood from atria to ventricles during atrial systole To prevent the flow of blood from veins to atria during the quiescent period To prevent the flow of blood from ventricles to atria during ventricular ejection To prevent the flow […]

 

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Question True False 2. What is the function classification of baroreceptors (not directly in video but from class)? Somatic sensory Visceral sensory Somatic motor Visceral motor 3. What is the structural class of baroreceptors (you will have to look closely at the video)? Unipolar Multipolar Bipolar 4. Where are the dendrites of baroreceptors located. Choose all that apply. Carotid sinuses Aortic arch Brain Heart 5. If less blood is pulsing through a vessel, pressure at that moment in the vessel is ___________ compared to normal. higher lower 6. If less blood is pulsing through a vessel, the vessel is ____________ stretched at that moment compared to normal. less more 7. What does the prefix baro- mean? volume vessel pressure heart 8. If baroreceptors send more action potentials the the brain than normal set-point, the brain interprets this as ____________ pressure. high low normal 9. Vasodilate refers to a blood vessel relaxing and getting bigger (have a wider diameter). True False 10. Vasoconstriction refers to a blood vessel contracting and getting smaller (having a smaller diameter). True FalseSomatic sensory Visceral sensory Somatic motor Visceral motor 3. What is the structural class of baroreceptors (you will have to look closely at the video)? Unipolar Multipolar Bipolar 4. Where are the dendrites of baroreceptors located. Choose all that apply. Carotid sinuses Aortic arch Brain Heart 5. If less blood is pulsing through a vessel, pressure at that moment in the vessel is ___________ compared to normal. higher lower 6. If less blood is pulsing through a vessel, the vessel is ____________ stretched at that moment compared to normal. less more 7. What does the prefix baro- mean? volume vessel pressure heart 8. If baroreceptors send more action potentials the the brain than normal set-point, the brain interprets this as ____________ pressure. high low normal 9. Vasodilate refers to a blood vessel relaxing and getting bigger (have a wider diameter). True False 10. Vasoconstriction refers to a blood vessel contracting and getting smaller (having a smaller diameter). True False

August 19, 2019 in /by

Question TrueFalse 2.What is the function classification of baroreceptors (not directly in video but from class)? Somatic sensory Visceral sensory Somatic motor Visceral motor 3. What is the structural class of baroreceptors (you will have to look closely at the video)? Unipolar Multipolar Bipolar 4. Where are the dendrites of baroreceptors located. Choose all that apply. Carotid […]

 

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