When thinking about the experiment and how blood flows out of our heart and back to...
When thinking about the experiment and how blood flows out of our heart and back to our heart, discuss how gravity would affect the volume flow rate going out of the arteries and returning via the veins. Would gravity affect both the leaving and the returning of the blood in the same way? Explain.
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When thinking about the experiment and how blood flows out of
our heart and back to...
11. Which of the following about human red blood cells is false:
11. Which of the following about human red blood cells is false: a. They are generated by stem cells in bone marrow.b. They lack nuclei when mature.c. They tend to rupture as they get older and less flexible.d. Erythropoietin controls their production.C. Their biconcave shape yields a small surface area.12. A child falls off his bicycle and skins his knee. All the following processes are involved in the formation of the blood clot that seals the wound excepta. formation of a...
A.) The blood low out of the heart is about 83 mL/sec. Assuming that the blood...
A.) The blood low out of the heart is about 83 mL/sec. Assuming that the blood flows equally through all capillaries, estimate the blood flow through each capillary. B.) The blood pressure difference across a capillary is 20 mmHg. Assuming that a capillary is about 7um in diameter on average, and that the viscosity of blood is 0.04 poise, calculate the theoretical length of a capillary. C.) The length of a capillary can be measure directly with a microscope and...
The blood pressure at your heart is approximately 100 mm of Hg. As blood is pumped...
The blood pressure at your heart is approximately 100 mm of Hg. As blood is pumped from the left ventricle of your heart, it flows through the aorta, a single large blood vessel with a diameter of about 2.5 cm. The speed of blood flow in the aorta is about 60 cm/s. Any change in pressure as blood flows in the aorta is due to the change in height: the vessel is large enough that viscous drag is not a...
Question 1 During ventricular fibrillation, there is no coordinated ventricular contraction. What effect does this have...
Question 1 During ventricular fibrillation, there is no coordinated ventricular contraction. What effect does this have on cardiac output? a. Increased cardiac output. b. Decreased cardiac output. c. No cardiac output. d. Cardiac output will remain normal. e. None of the above is correct Question 2 A “portal system” is the name for a. arteries that bypass a major organ. b. veins that bypass a major organ. c. two capillary beds in series. d. arteries that connect directly to veins...
Microscopic Structure of the Blood Vessels l views of an artery and of a vein are shown here Identily each, on the lines to the sides, note the structural details that enabled you...
Microscopic Structure of the Blood Vessels l views of an artery and of a vein are shown here Identily each, on the lines to the sides, note the structural details that enabled you to make these identifications (vessel type) (vessel type) Now descibe each tunic more fully by selecting ts characteristics from the key below and placing the approprate key lettes on the answer lines Tunica intima Tunica media Tunica externa Key: a innermost tunic b. most superficial tunic regulates...
Researchers set out to conduct a series of separate experiments to explore how the mammalian respiratory...
Researchers set out to conduct a series of separate experiments to explore how the mammalian respiratory system functions. Using rats as a model for exploring respiration (assume the mechanics for breathing and maintaining homeostatic regulation of Pco2, Po2, and pH are the same for humans and rats), the researchers performed several separate experiments on these otherwise healthy rats. The rats were allowed to fully recover after the conclusion of each experiment, thus ensuring no carry over effects from one experiment...
When the left ventricle contracts, blood forces out of the ventricle into the ___________ and out...
When the left ventricle contracts, blood forces out of the ventricle into the ___________ and out into the body. When the blood leaves the heart and passes through the aorta, it continues on into smaller vessels called __________________ that extend throughout the body. As the blood travels through each artery, the artery gradually _________________ in diameter becoming first an arterial and then a capillary. Drugs that cause vasoconstriction _______________ the diameter of blood vessels, whereas drugs that cause vasodilation ________________...
When the left ventricle contracts, blood forces out of the ventricle into the ___________ and out into the body. When t...
When the left ventricle contracts, blood forces out of the ventricle into the ___________ and out into the body. When the blood leaves the heart and passes through the aorta, it continues on into smaller vessels called __________________ that extend throughout the body. As the blood travels through each artery, the artery gradually _________________ in diameter becoming first an arterial and then a capillary. Drugs that cause vasoconstriction _______________ the diameter of blood vessels, whereas drugs that cause vasodilation ________________...
Name UNIT 11 Quiz continued Section Date 5 High pressure in the systemic and pulmonary circuits...
Name UNIT 11 Quiz continued Section Date 5 High pressure in the systemic and pulmonary circuits often results in ventricular hypertrophy, in which the ventricle enlarges to pump against greater force. Which side(s) of the heart would be affected by high pressure in the pulmonary circuit? Which side(s) of the heart would be affected by high pressure in the systemic circuit? Explain. 6 Ms. F. visited her physician for a routine physical. During the exam, she explained that over the...
Please help 15. During our paper lab experiment, we compared the tumor cells from one patient...
Please help
15. During our paper lab experiment, we compared the tumor cells from one patient to the normal cells of the same patient. If we wanted to do a larger study to give a larger picture of what is going on in colon cancer cells which of the following would be a better way to set up the experiment? A. Collect cancer cells and normal cells from 1000 patients and run 1000 different microarrays (one for each person) and...
11. Which of the following about human red blood cells is false: a. They are generated by stem cells in bone marrow.b. They lack nuclei when mature.c. They tend to rupture as they get older and less flexible.d. Erythropoietin controls their production.C. Their biconcave shape yields a small surface area.12. A child falls off his bicycle and skins his knee. All the following processes are involved in the formation of the blood clot that seals the wound excepta. formation of a...
Microscopic Structure of the Blood Vessels l views of an artery and of a vein are shown here Identily each, on the lines to the sides, note the structural details that enabled you to make these identifications (vessel type) (vessel type) Now descibe each tunic more fully by selecting ts characteristics from the key below and placing the approprate key lettes on the answer lines Tunica intima Tunica media Tunica externa Key: a innermost tunic b. most superficial tunic regulates...
Name UNIT 11 Quiz continued Section Date 5 High pressure in the systemic and pulmonary circuits often results in ventricular hypertrophy, in which the ventricle enlarges to pump against greater force. Which side(s) of the heart would be affected by high pressure in the pulmonary circuit? Which side(s) of the heart would be affected by high pressure in the systemic circuit? Explain. 6 Ms. F. visited her physician for a routine physical. During the exam, she explained that over the...
Please help
15. During our paper lab experiment, we compared the tumor cells from one patient to the normal cells of the same patient. If we wanted to do a larger study to give a larger picture of what is going on in colon cancer cells which of the following would be a better way to set up the experiment? A. Collect cancer cells and normal cells from 1000 patients and run 1000 different microarrays (one for each person) and...
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