Check my answers (questions on heart)

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Discussion Overview

The discussion revolves around a set of questions related to cardiovascular physiology, particularly focusing on blood pressure changes during exercise and the concept of hypertension. Participants are attempting to fill in the blanks of these questions, which involve understanding the physiological responses of the heart and blood vessels during physical activity.

Discussion Character

  • Homework-related
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests that during exercise, cardiac output initially increases due to an increase in heart rate, which is later maintained by an increase in stroke volume.
  • Another participant mentions that in the late stage of exercise, the elevation of cardiac output is again maintained by heart rate, influenced by the accumulation of metabolites leading to vasodilation.
  • There is uncertainty expressed regarding the correct terminology for pressures and physiological responses, with one participant questioning the accuracy of the original question format.
  • Participants note that some answers were missing from the questions, which complicates providing accurate responses.
  • One participant expresses doubt about their answers, indicating they believe they may be incorrect.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the answers to the questions, and there are multiple competing views regarding the physiological processes involved during exercise and the terminology used. The discussion remains unresolved with respect to the accuracy of the answers provided.

Contextual Notes

Some participants highlight missing information in the questions, which may affect the ability to answer correctly. There is also ambiguity in the physiological terms used, such as the distinction between vasodilation and vasoconstriction.

shadows122
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Hi, I am having trouble filling these correctly!

1. After exercise the [a] pressure remains relatively unchanged while the (B) pressure increases. This is due to the increased cardiac [c] required during exercise. In some circumstances the [d] pressure may actually reduce slightly during exercise. This is caused by [e] of the small blood vessels.

No answers came with this question

my answers that I'm guessing:
a) diastolic
b) systolic
c) pressured) diastolic
e) widening

i think they're wrong..


2. Hypertension is referred to as a persistent [a] in both (b) and [c] pressure. A patient is diagnosed with hypertension when their systolic pressure is [d] mmHg and their diastolic is [e] mmHg. Hypertension is a major cause of [f] and is increased by [g], [h] and and [j] intake.

Answers: Cardiovascular disease; alcohol; systolic; exercise; obesity; arterial; elevation; venous; stress; diastolic; sodium; liquorice; reduction; liver failure; lung damage.

my answers I am guessing:
a) aerterial elevation
b)diastolic
c)systolic
d) 140
e) 90
f)cardiovascular disease
g) obesity
h)stress
i)odium
j)alcoholi only got 3/10 marks [PLAIN]http://static1.tsrfiles.co.uk/15.02/images/smilies/frown.png[/B][/B][/B][/B][/B][/B][/B][/B]
 
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Did you write the first question correctly, I can't find "b" in the question.

As for first question

1. Initial stage during exercise cardiac out put increases due to increase heart rate
2. Then early stage of exercise this elevation of cardiac out put is maintained not by heart rate, but by increase in stroke volume
3. Then in late stage of exercise this elevation of cardiac output is again maintained byincrease in heart rate, but the reason here is as metabolites acculmulates (eg lactate) there is vasodiilation which results in reflex increase in heart rate

2nd question also you have left out some answers. so can't answer properly.
 
Thanks for replying, I've edited the original post.

 
sameeralord said:
Did you write the first question correctly, I can't find "b" in the question.

As for first question

1. Initial stage during exercise cardiac out put increases due to increase heart rate
2. Then early stage of exercise this elevation of cardiac out put is maintained not by heart rate, but by increase in stroke volume
3. Then in late stage of exercise this elevation of cardiac output is again maintained byincrease in heart rate, but the reason here is as metabolites acculmulates (eg lactate) there is vasodiilation which results in reflex increase in heart rate

2nd question also you have left out some answers. so can't answer properly.

Ok, so for question 1, I did:

After exercise the cardiac output pressure remains relatively unchanged while the stoke volume pressure increases. This is due to the increased cardiac output required during exercise. In some circumstances the stroke volume pressure may actually reduce slightly during exercise. This is caused by vasodilation or vasoconstriction (not sure which one) of the small blood vessels.
 
Last edited:

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