As a kid Mia Mia liked to play zelda The Adventure of Link o

As a kid, Mia Mia liked to play zelda The Adventure of Link. on Nintendo Entertainment system. During her many hours attempting to master the the following scenario often. Link was on a quest to rescue the evil Ganon who had put the princess under a sleeping spell. As Link traveled through the Great in of battle, an ax-throwing warrior and an intense battle ensued. During the Link took an ax to gut and started hemorrhaging...beep, beep, beep! affects blood volume the hemorrhaging Draw an up or down a in the boxes below to indicate how and blood pressure Blood volume MABP If Link were a real person, his body would respond quickly to counteract this change in BP. In the blanks below indicate how the above change in BP stimulates the nervous system. baroreceptor firing PSNS stimulation of the heart SNS stimulation of the heart and vessels Next indicate how the above changes in nervous system activity will affect the following variables in order to bring Link\'s MABP back to normal. contractility of the heart vasomotor tone venous return heart rate (HR) peripheral resistance TPR) stroke volume (SV) cardiac output (CO) blood volume caused The above measures will help Link in the short-term. However, the change in secretion of the by taking an ax gut will require a longer term solution. how the good. following hormones will change in order to bring his MABP back to normal for aldosterone ANP ADH Link was taken to the hospital for treatment where the following measures were determined: mL diastolic BP: 50 mmHg, systolic BP:100 mmHg. heart rate: 90 bpm, end diastolic volume: 150 and end systolic volume: 50 mL. Calculate the following and show your work: Link\'s cardiac output: Link\'s mean arterial pressure:

Solution

Due to hemorrhage there is decrease in both blood volume and MABP (Mean Arterial Blood pressure).

This leads to increased Baroreceptor firing to increase the SNS (sympathetic Nervous System) stimulation of heart and blood vessels - resulting in increased heart rate and contractility and constricted blood vessels.

In order to bring back MABP back to normal, there will be :

increased contractilty of heart

increased vasomotor tone

increased venous return

increased heart rate

increased total peripheral resistance

increased stroke volume

increased cardiac output.

Change in secretion of hormones:

Increased aldosternoe

Increased ANP

Increased ADH

All this will cause more vascular constriction and increase the blood volume.

Cardiac output = stroke volume x heart beat

(amount of blood pumped through heart in one minute)

Stroke volume = end-diastolic volume (EDV) - end-systolic volume (ESV) from

150-50

= 100mL

Heart beat = 90bpm

Cardiac output = 100 x 90

9000 mL per minute or 9 L per minute

Link\'s Mean Arterial pressure:

MAP = [ (2 x diastolic) + systolic ] divided by 3

[(2 x 50) + 100]/3

200/3

66.67mmHg