. (G ts) Match the letters on the graphs with the descriptions below, Use the le
ID: 218045 • Letter: #
Question
. (G ts) Match the letters on the graphs with the descriptions below, Use the letters on the EKG for electncal descriptions and the letters on the ventcular volume graph for all ather descriptions Use multiple letters d it is approprate all valves are closed -atrial depolarization AV valves are open ventricular systole begins ventricular repolanzation atrial contraction occurs here left ventricular pressure is greater than atrial pressure but less than aortic pressure region where end systolic volume is describecd region where semilunar values are open region where greatest pressure is reached in the len ventricle f the heart rate slowed, the value in this region would increase before ventricular contra region where atrial pressure is greater than ventricular pressure 2. (4pts) Write a single equation that defines the terms below (no abbreviations pleas e). stroke volume cardiac output 3. (2pts) Fill in the blanks with 'increase' or 'decrease'. (Assume other parameters do not change.) Decreasing the heart rate will Increasing blood pressure will Decreasing the heart rate wil end diastolic volume end diastolic volume ande cardiac output nd systolic volume. 4. (3pts) Are the smooth muscle features below like Skeletal muscle, Cardiac muscle or Unique to smooth muscle? do not possess sarcomeres use motor units to control contraction possess gap junctions for coordinated contraction use calmodulin and myosin light chain kinase to start the cross bridge cycle promote contraction through influx of Ca across the plasma membrane can contract without electrical depolarization of the plasma membraneExplanation / Answer
1)
2)b
4)h
5)c
2) Cardiac output (Q) = stroke volume (SV) x heart rate (HR)
3) 1) increases
2) decreases, decreases
3)increasees
4)1)smooth muscles
2)skeletal muscles
3)cardiac muscle
4)smooth muscle
5)smooth muscle
6)cardiac muscle
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