anatomy 23 - 25.17 What makes muscles work The nervous...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
o 25.17 What makes muscles work? The nervous system Respiratory rhythmicity center Has two components (don’t worry about names) o One is for inspiration (inspiratory center) o One is for expiration (expiratory center) Regulates the rhythm of your breathing Apneustic center In the pons Important in changing the rhythm of inspiration Penumotaxic center Inhibits the apneustic center Chemoreceptors that measure blood chemistry in respiratory they measure blood CO2 levels if the CO2 level is above a certain setpoint, (determined by your genetics) you need to get more oxygen, and get rid of CO2 o so when you need to take a breath is dictated by the amount of CO2 in the blood during respiratory rest, all live cells in your body are producing CO2 o they send impulses to the inhalation center or division of the rhythmicity center- which then sends impulses to the diaphragm and to the external intercostals, and those muscles contract o what determines how much air you suck in?
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern