o 277L Spring 201 Name: Critical Thinking Assignment 8: Blood pressure I. F or e

Question

o 277L Spring 201 Name: Critical Thinking Assignment 8: Blood pressure I. F or each space below, indicate whether each of the factors on the left affecting cardiac output causes an incre crease, decrease, or no change in heart rate, stroke volume and cardiac output. In cases where you think you could argue two answers, pick one and provide justification! (7.5 pts). Cardiac Output Increase Heart Rate Stroke Volume Increase Increased sympathetic Increase stimulation Decfcase Intrcasc Increase Increased parasympathetic stimulation Increased venous return due to vasoconstriction ncrcase Exercise ecrcase ess venoUS Sudden catastrophic loss of blood Increase in blood calcium levels

Explanation / Answer

Ans 1- Increased venous return due to vasoconstriction

a - heart rate =increased

b- stroke volume =increased

c-cardiac output= increased

Ans 2:- during exercise

a-heart rate =increased

b-stroke volume =increased

c-cardiac output= increased

Ans 3:- sudden catastrophic loss of blood

a-heart rate=increased

b -stroke volume= increased

c-cardiac output =decreased

Ans 4:- increase in blood calcium levels (hypercaicalcamia)

a-heart rate=increased

b-stroke volume=increased

c-cardiac output=increased

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