L5 Muscular System Chapter 9

L5 Muscular System Chapter 9 - Muscular System Chapter 9 1...

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

View Full Document Right Arrow Icon
Muscular System: Chapter 9 1. When describing muscle, what does “striated” mean? Striated means “with stripes.” 2. Harry was pondering an exam question that said, “What muscle type has elongated cells and is found in the walls of the urinary bladder?” What should he have responded? He should have responded “smooth muscle,” which fits the description. 3. How does the term epimysium relate to the role and position of this connective tissue sheath? “Epimysium” literally translates to “outside the muscle” and this connective tissue sheath is the outermost muscle sheath which encloses the entire muscle. 4. Which myofilaments have binding sites for calcium? What specific molecule binds calcium? The thin myofilaments have binding sites for calcium on the troponin molecules forming part of those filaments. 5. Which structure-T tubule, mitochondrion, or SR-contains the highest concentration of calcium ions in a resting muscle fiber? Which structure provides the ATP needed for muscle activity? In a resting muscle fiber, the SR would have the highest concentration of calcium ions. The mitochondrion provides the ATP needed for muscle activity. 6. What are the three structural components of a neuromuscular junction? The components of the neuromuscular junction are the axon terminal, the synaptic cleft, and the junctional folds of the sarcolemma. 7. What is the final trigger for contraction? What is the initial trigger?
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