Emily Howard (Laboratory Section 4019)
Jennifer Dierkes (Laboratory Section 4019)
Nicole Danh (Laboratory Section 4020)
Wesley Ng (Laboratory Section 4020)
Kayoti Farinholt (Laboratory Section 4020)
Cardiovascular Assignment
Work in groups (3-5) on this assignment and hand in one page of answers. I prefer you turn it in using the Canvas groups you have established and using the TurnItIn feature on Canvas.
According to the ‘Frank – Starling Law” increasing preload will do what to stroke volume? (1 point)
According to the ‘Frank – Starling Law’, ventricular preload is directly proportional to stroke volume. Therefore, increasing preload will also increase stroke volume.
If the heart has an impaired contractility, what would you expect to happen …show more content…
Heart rate is regulated by the autonomic nervous system (sympathetic and parasympathetic nervous system). Impaired contractility would cause the stroke volume to change (decrease) which will affect the cardiac output. The heart rate will adjust or increase to maintain a stable blood pressure.
People with chronic angina (chest pain likely due to a heart problem) often take a nitroglycerin tablet to relieve their symptoms. How does this relieve their symptoms? In your answer discuss (briefly) oxygen delivery to the heart. (3 points)
Chronic angina can occur when there is a blockage or restriction in the arteries of the heart causing pain because of the lack of oxygenated blood flowing to the heart. The pain associated with chronic angina can become worse during exercise, when the heart is working harder, and better during rest, when the body requires the heart to work less hard. When exercising the heart requires more oxygenated blood to function properly, at times of rest this issue is less present and the symptoms of angina can decrease or disappear. Without the proper levels of oxygen, the heart can’t function properly. People prescribed nitroglycerin tablets to relieve their symptoms can see a reduction in the chest pain associated with lack of oxygenated blood in the heart. Nitroglycerin improves blood flow to the heart and therefore decreasing pain by dilating the coronary arteries. This also reduces how hard the heart has to
Jennifer Dierkes (Laboratory Section 4019)
Nicole Danh (Laboratory Section 4020)
Wesley Ng (Laboratory Section 4020)
Kayoti Farinholt (Laboratory Section 4020)
Cardiovascular Assignment
Work in groups (3-5) on this assignment and hand in one page of answers. I prefer you turn it in using the Canvas groups you have established and using the TurnItIn feature on Canvas.
According to the ‘Frank – Starling Law” increasing preload will do what to stroke volume? (1 point)
According to the ‘Frank – Starling Law’, ventricular preload is directly proportional to stroke volume. Therefore, increasing preload will also increase stroke volume.
If the heart has an impaired contractility, what would you expect to happen …show more content…
Heart rate is regulated by the autonomic nervous system (sympathetic and parasympathetic nervous system). Impaired contractility would cause the stroke volume to change (decrease) which will affect the cardiac output. The heart rate will adjust or increase to maintain a stable blood pressure.
People with chronic angina (chest pain likely due to a heart problem) often take a nitroglycerin tablet to relieve their symptoms. How does this relieve their symptoms? In your answer discuss (briefly) oxygen delivery to the heart. (3 points)
Chronic angina can occur when there is a blockage or restriction in the arteries of the heart causing pain because of the lack of oxygenated blood flowing to the heart. The pain associated with chronic angina can become worse during exercise, when the heart is working harder, and better during rest, when the body requires the heart to work less hard. When exercising the heart requires more oxygenated blood to function properly, at times of rest this issue is less present and the symptoms of angina can decrease or disappear. Without the proper levels of oxygen, the heart can’t function properly. People prescribed nitroglycerin tablets to relieve their symptoms can see a reduction in the chest pain associated with lack of oxygenated blood in the heart. Nitroglycerin improves blood flow to the heart and therefore decreasing pain by dilating the coronary arteries. This also reduces how hard the heart has to