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Bios 255 Midterm Finals ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct
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Bios 255 Midterm Finals ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct
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Bios 255 Midterm FinalsBy ExamNavigator
, Bios 255 Midterm Finals
1. Which of the typical blood vessels has a thin tunica tunica media dominatedby collagen
fibers?
Answer: veins
2. Capillaries surrounding the choroid plexus is of which type?
Answer: Fenestratedcapillaries
3. Blood flow through a capillary bed is passed by what structure?
Answer:
Atriovenous
Anastomosis
4. Blood flows toward the heart in the veins by?
Answer:
-With the aid of contractions ofthe adjacent skeletal muscles.
-Valves in the veins prevent the backflow of the blood
-Pressure at the venules is higher than the pressure at the venae cava
5. As the blood flows from venules toward the heart, what increases?
Answer: Resistance
6. Blood volume is decreased by what two hormones?
Answer: ANP & BNP
7. Which of the following is not a vasoconstrictor?
-Prostagladin
-Thromboxones
-Nitric Oxide
Answer: Nitric Oxide
8. Vasodilation is achieved by adrenergic receptors. True or False
Answer: False
9. Baroreceptors are found in what sinus?
Answer: Carotid Sinuses
10. Which of the typical blood vessels has thick tunica media dominated bysmooth muscle
cells and elastic fibers?
Answer: Arteries
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