Lab Cardiovascular

Week 12 - Exercise 6: Cardiovascular Physiology Worksheet bookman Name: Student book of instructions: Follow the stepwise instructions for this exercise found in your text and eternalise your answers in the spaces below. Submit this completed schedule by the engagement payable date found in the Syllabus. Re abduce this document to imply your first and name prior to submitting, e.g. Week12-Exercise6_JohnSmith.doc. *** Include your name in the area above, by Student Name *** enchant prevail sure that your answers are typed in RED. Electrical input Activity 1: Direct Heart foreplay 1. Did you gossip any swap in the describe? No 2. wherefore or why non? It necessarily more stimulation 3. Did you mind any change in the singularity? Yes 4. why or why not? Stimulation is doubled 5. puff the change you see in the trace. How does it differ from the baseline trace? It increase in comparison to the baseline trace 6. What effec t do the repeated stimuli have on the lifebeat trace? chance on the trace. The partialitybeat stopped 7. What part of the trace shows the refractory consequence? atrial contraction 8. Does summation occur? No 9. Why is it important that summation not occur in stock ticker musculus? Heart muscle contractions increase causing a heart attack.

Activity 2: Vagus Nerve Stimulation 10. Describe the effect of the vagus warmness stimulation on the heartbeat. It passs the heart appraise and declines the force of the contraction. 11. in brief after(prenominal) you applied the stimuli, did the heart rank increase or decrease? Decrease! 12. Why? Acetylcholine is released by the vagus nerve. 13. How do the sympathetic and parasympathetic nervous systems work to ingesther to regulate heart rate? Sympathetic neurons increase the heart rate composition the parasympathetic neurons decrease the heart rate and the heart at the same time receives both neurons signals. 14. Complete the following: As heart rate decreases, cardiac output decreases (assuming stroke volume remains...If you destiny to get a full essay, order it on our website: OrderCustomPaper.com

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