BPK 142 Lab Final Exam Questions and Answers Already Passed
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Course
BPK 142
Institution
BPK 142
BPK 142 Lab Final Exam Questions and Answers Already Passed Atria (which vessels enter through here?) two upper chambers of the heart
- r. atrium receives deoxygenated blood from vena cava - l. atrium receives oxygenated blood from pulmonary vein
Ventricles (which vessels enter through here?) two...
BPK 142 Lab Final Exam Questions and Answers Already Passed Atria (which vessels enter through here?) ✔✔two upper chambers of the heart - r. atrium receives deoxygenated blood from vena cava - l. atrium receives oxygenated blood from pulmona ry vein Ventricles (which vessels enter through here?) ✔✔two lower chambers of the heart - r. ventricle receives deoxygenated blood from r. atrium - l. ventricle receives oxygenated blood from l. atrium Describe the flow of a RBC from the right atrium t o aortic arch, describing the function associated with each major structure. ✔✔Right atrium Tricupsid valve: opens to allow blood from r. atrium → r. ventricle + closes to prevent blood from returning to atrium Right ventricle Pulmonary artery (Lungs to ge t oxygenated) Pulmonary vein Left atrium Bicupsid valve Left ventricle Aorta Why is the elasticity and contractility of arteries important? ✔✔- when the heart pumps blood, arteries fill up and stretch to accommodate the extra blood - as ventricles relax, arteries force blood forward Trace a drop of blood through major arteries and veins from the aortic arch through its systemic circulatory route to your right ankle and back to your heart again. ✔✔- aorta (descends down) - hepatic ar tery (liver) - mesenteric artery (stomach & intestines) - renal artery (kidneys) - right iliac artery (pelvis) - divide into arterioles - further divide into capillaries - capillaries join together to form venules - venules join to form right femoral ve in - right iliac vein - renal vein - hepatic vein - join to form inferior vena cava - right atrium of heart Explain how blood returns to the right atrium. Why should one "cool down" after exercise rather than stop suddenly? ✔✔blood returns from veins i n body (vena cava) - blood pressure rises when exercising and arteries redirect your blood flow away from abdomen to working muscles (arms, legs) - parasympathetic nervous system takes over when you are at rest/cooling down and blood pressure drops - blood vessels relax and dilate, blood flows to your abdomen, and your heart rate slows - blood no longer forced forward and stays in working muscles AND DOES NOT reach head
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