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For questions 18 and 19, match the numbers 2 & 3 with the accurate term below that defines what activity is occurring in the cardiac cycle (in the diagram above) at that time 

3) During a period of sympathetic stimulation, a person will experience a greater release of ________ which is a neurotransmitter released from the autonomic nervous system. This will result in __________.

15) The strength of the cardiac muscle contraction depends on ____________________ because compared to skeletal muscle cells, cardiac muscle cells __________________.  

18) (No. 4 in figure)_____________

29) An increase in venous return would increase cardiac output via ___________

28) A patient presents with the ECG below during treatment. What is the MOST appropriate next step for the therapist to take?

4) Severe hypertension may damage endothelial cells in blood vessels. This increased shear stress on the endothelium may cause a decrease in the synthesis and release of _______ from the endothelium, which will result in reduced __________.

23) Which of the following best describes the rhythm in this ECG strip?

This is a proctored unit test.  I understand I am only allowed 1 page of notes.  There is no book, no phones, no google or search engine, and no outside help.  If I decide to cheat and not follow these simple rules, I understand I may get a 0 for the test and this may lead to me being dropped from the course.  (And this applies no matter what you choose for your answer)

Incomplete dominance results in a phenotype that is intermediate between the two homozygous phenotypes.