1 / 20

Final Exam, 8-9 Lecture

Final Exam, 8-9 Lecture. JES A121A, Tuesday, May 19, 2-5. Final Exam, 9-10 Lecture. JES A121A, Tuesday, May 19, 9-12. Final Exam, 2-3 Lecture. JES A121A, Friday, May 15, 9 -12. Two major types of muscle. Smooth Striated a. skeletal b. cardiac.

aradia
Download Presentation

Final Exam, 8-9 Lecture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Final Exam, 8-9 Lecture JES A121A, Tuesday, May 19, 2-5

  2. Final Exam, 9-10 Lecture JES A121A, Tuesday, May 19, 9-12

  3. Final Exam, 2-3 Lecture JES A121A, Friday, May 15, 9 -12

  4. Two major types of muscle • Smooth • Striated a. skeletal b. cardiac

  5. My knowledge about striated muscle I know the structure: A, I bands, Z lines I know the sliding filament hypothesis, the cycling of actin and myosin I know how muscle relaxes I understand how muscle contractions are controlled by nerves (motor units) I know what twitch and tetanus mean

  6. I know • All of this • Most of this • Some of this • None of this

  7. Set-up for the experiment

  8. How does a muscle fiber contract?How does the nerve command the contraction?How does a muscle fiber relax?How is smooth, graded force generated in a muscle?

  9. The length-tension relationship

  10. What is the switch for muscle fiber contraction? • ATP • Myosin • Actin • Ca++

  11. Why does skeletal muscle relax? • the action potential is over and the muscle fiber returns to its resting membrane potential • Ca++ is sequestered into the SR • muscle runs out of ATP • an inhibitory neurotransmitter is released that causes the muscle to relax.

More Related