Lab Cardiovascular

Week 12 - Exercise 6: Cardiovascular Physiology Worksheet student Name: Student book of instructions: Follow the gradual instructions for this exercise found in your text and discharge your answers in the spaces below. Submit this completed document by the date payable date found in the Syllabus. Re observe 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 *** enliven prevail sure that your answers are typed in RED. Electrical stimulus Activity 1: Direct Heart stimulus 1. Did you project any tilt in the describe? No 2. why or why non? It necessarily more stimulation 3. Did you canvas any change in the singularity? Yes 4. wherefore or why not? Stimulation is doubled 5. puff the change you see in the trace. How does it differ from the baseline trace? It change magnitude in comparison to the baseline trace 6. What effect do the repeated stimuli have on the lifebeat trace? chance on the trace. The breastbeat stopped 7. What part of the trace shows the refractory flow set out? atrial contraction 8. Does summation occur? No 9. Why is it important that summation not occur in core 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 flows the heart appraise and declines the force of the contraction. 11. in brief by and by you applied the stimuli, did the heart ra te increase or decrease? Decrease 12. W! hy? 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(p) time receives both neurons signals. 14. Complete the following: As heart rate decreases, cardiac output decreases (assuming stroke volume remains...If you essential to get a full essay, order it on our website: OrderCustomPaper.com

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