Exam (elaborations)
Biology 127 Final Exam Questions And Answers Latest Update
- Course
- HUMBIO 127
- Institution
- Stanford University
Biology 127 Final Exam Questions And Answers Latest Update
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Solution 2024/2025Pepper
Biology 127 Final Exam Questions And
Answers Latest Update
Veins ANS✔✔ carry blood back to the heart
Arteries ANS✔✔ carry blood away from the heart
What are the only exceptions to the artery oxygenated/vein deoxygenated
blood rule? ANS✔✔ Pulmonary artery/vein
What is the smallest vessel? ANS✔✔ Capillaries
Vasoconstriction ANS✔✔ reduces blood flow
Vasodilation ANS✔✔ increases blood flow
Aneurysm ANS✔✔ Occurs when the wall of an artery is weakened and it
swells outward
What are the prime controllers of blood pressure? ANS✔✔ Arterioles
What is the smallest blood vessel? ANS✔✔ Capillaries
, Solution 2024/2025
Pepper
What are the 3 mechanisms that move blood from the body to the heart?
ANS✔✔ 1. Contraction of skeletal muscles
2. Pressure differences caused by breathing
3. Valves in veins
Myocardium ANS✔✔ The wall of the heart
Endocardium ANS✔✔ Thin lining of the cavities of the heart
Pericardium ANS✔✔ Thick fibrous sac that holds the heart
Lub sound ANS✔✔ Closing of the AV valves
Dup sound ANS✔✔ Closing of the semilunar valves
AV Valves ANS✔✔ separate the atria from the ventricles
Semilunar valves ANS✔✔ separate the ventricles from the exit vessels
Right side of the heart ANS✔✔ Contains blood low in oxygen
Left side of the heart ANS✔✔ Contains blood rich in oxygen
Systole ANS✔✔ Contraction
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