Assume that a human heart functions similarly to a frog heart. If a person is experiencing a fever, what would we expect to happen to that person's heart rate?
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Assume that a human heart functions similarly to a frog heart. If a person is experiencing a fever, what would we expect to happen to that person's heart rate?
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- Left Atrium Right Atrium Left Ventricle Right Ventricle b) On the diagram of the heart above, use arrows to show the pathway of blood through the heart and its associated vessels. c) Use a blue colored pencil to shade in all regions of the heart that carry deoxygenated blood and a red colored pencil to shade in the regions that carry oxygenated blood. Conclusion:Use this labelled diagram of a human heart & major blood vessels to answer these Which structure is labelled "D"? questions. Aorta Black arrows indicate direction of blood flow Blue structures contain deoxygenated blood Red structures contain oxygenated blood Cardiac muscle Inferior vena cava Left atrium A- B Left ventricle Mitral valve Pulmonary artery Pulmonary valve D- Pulmonary veins Right atrium N- M- Right ventricle F Superior vena cava Tricuspid valve K-(i) A scene of a TV drama showed that a heart continues to beat when it was ripped from a brain-dead patient. Is that possible? Elaborate your answer.
- Use this labelled diagram of a human heart & major blood vessels to answer these Which structure is labelled "K"? questions. Aorta Black arrows indicate direction of blood flow Blue structures contain deoxygenated blood Red structures contain oxygenated blood Cardiac muscle Inferior vena cava Left atrium A- B Left ventricle Mitral valve C Pulmonary artery Pulmonary valve D- D Pulmonary veins Right atrium N- E Right ventricle M- Superior vena cava Tricuspid valve K-Use this labelled diagram of a human heart & major blood vessels to answer these questions. Which structure is labelled "G"? Aorta • Black arrows indicate direction of blood flow Blue structures contain deoxygenated blood Red structures contain oxygenated blood Cardiac muscle Inferior vena cava Left atrium A- Left ventricle Mitral valve Pulmonary artery Pulmonary valve D- -D Pulmonary veins Right atrium N- Right ventricle M- Superior vena cava G. Tricuspid valve K-Explain the origin and conduction of the excitation that leads to a heart contraction. Why is the vertebrate heart said to be myogenic? If the heart is myogenic, how do you account for alterations in rate of the heartbeat?
- Use this labelled diagram of a human heart & major blood vessels to answer these Which structure is labelled "M"? questions. Aorta Black arrows indicate direction of blood flow Blue structures contain deoxygenated blood Red structures contain oxygenated blood Cardiac muscle Inferior vena cava Left atrium A- B Left ventricle Mitral valve Pulmonary artery Pulmonary valve -D D- Pulmonary veins Right atrium N- M- Right ventricle Superior vena cava Tricuspid valve K-The air we breathe in travels to our lungs where oxygen is picked up by our blood and then pumped by the heart to our tissue and organs. When a person experiences cardiac arrest, the heart goes from a normal beat to having an irregular rhythm and eventually ceases to beat altogether. This prevents oxygen from circulating throughout the body, rapidly killing cells and tissue. In essence, Cardio (heart) Pulmonary (lung) Resuscitation (revive, revitalize) serves as an artificial heartbeat and an artificial respirator. CPR may not save the victim even when performed properly, but if started within 4 minutes of cardiac arrest, a person has a 40% chance of survival You see a man collapse on close assessment, you realize the man has no movement and is not breathing. Recommend the first Aid you would give to this casualty clearly stating the CPR procedure? A nose bleed is when blood flows from one or both nostrils. It’s normally caused by the tiny blood vessels inside the nostrils being…A pithed frog in which the brain and spinal cord are severed is technically dead but some of its organs such as heart, continue to function for some time. An experiment was performed on a pithed frog. After recording the normal heartbeats (normal cardiogram or sinus rhythm), a ligature (ie. tying) is applied between the sinus venosus and right auricle. (Sinus venosus is the pacemaker in amphibian heart). It is the first ligature (I ligature). After a while, a second ligature is applied between auricles and ventricle (II ligature). The heart rates record is shown below. What can we learn from this experiment about the rhythmicity of our cardiac muscle? List THREE points. A в 5 sec 5 sec 5 sec I ligature Il ligature
- Define death in physiological terms. We know that when the human heart stops beating, it can be started again artificially. And the subject lives. If the heart does not restart, the O2 supply is cut off, the brain cells die, but what does lack of O2 cause? Include mechanisms.The Alexandrian physician Herophilus, originally from Chalcedon, was able to make which of the following diagnostic conclusions based on the strength and rate of the human pulse? that a weak but rapid pulse was a sign of significantly increased blood volume that a strong but slow pulse was a sign of significant blood loss that a strong but rapid pulse was a sign of air entering the left atrium that a weak but rapid pulse was a sign of significant blood loss that a weak but slow pulse was a sign of significantly increased blood volumeMost humans are less than 2 meters tall. However, imagine if a human was 9 meters (almost 30 feet) tall. This would create some challenges that would require modifications to their cardiovascular system. Using your knowledge of normal human cardiovascular function, describe two ways that you could modify the cardiovascular system of a 9-meter human to accommodate their immense height (hint: think about things like gravity and blood pressure).