Complete diagrams as instructed in the tasks.

Question

Include proper values on the x & y-axis as well as labeling those. Make sure to label ESV, EDV, aortic and mitral valve opening and closing, and Isovolumetric relaxation and contraction where possible on the diagrams regarding blood volumes and pressure. You also need to make sure to list or provide explanation where necessary or where it is asked in the tasks.

Case Studies Tasks:

Jane was riding her horse on a warm sunny day (101 degrees Fahrenheit) when suddenly her horse stopped and reared up in the air. Jane was not prepared for this and fell hard backwards into the ground. As she hit the ground Jane's leg was gashed open by a large, sharp boulder that she fell next to. Jane began to bleed severely. Jane's pulse seems to be low (or hard to find) and her respiratory rate is at 22 bpm. Jane's body spends the next couple hours physiologically compensating for her blood loss. Based on your knowledge of the cardiovascular system complete the following: Make a graph of Jane's cardiac output/venous return (y-axis) vs (as a function of) her central venous pressure. Provide two points on the curve that represent (A) before she fell off the horse and (B) after she fell and suffered significant bleeding. Just use general numbers for central venous pressure (2-8 mmHg) and cardiac output of (2-7 Liters) Make sure the pressures and L/min are labeled correctly on each axis. Then list any compensatory mechanisms the body is using to return the cardiac output to normal while bleeding.

Answer 1

Since I really can't drawn these as a graph, the cardiac output would continue to drop as she is bleeding and the venous return would also drop as less blood is cycled. Her heart rate would increase as it struggles to replace the blood gushing out. She will need someone to stop the bleeding STAT so that she does not go into hypovolemic shock.