Part 1 Muscle Quiz: Due in class Monday
- What is the fundamental contractile unit of muscle tissue?
- The Sarcomere
- The fascicle
- In the case of skeletal muscle, what is the term “fiber” synonymous with?
- What is the primary component of the thick filaments
- Actin subunits
- Myosin molecules
- The sarcomere is defined as the region between
- Two successive z discs
- The thick and thin filaments
- Whole muscles are wrapped in a connective tissue sheath called the:
- Which protein covers the myosin binding site on the thin filament in a resting muscle?
- Intracellular levels of _____________ are maintained by the sarcoplasmic reticulum
- Ionic calcium
- Sarcoplasmic ATP
- The t tubules are extensions of the
- Sarcoplasmic reticulum
- The connective tissue sheath that packages muscle fibers into fascicles is known as the
10. Which muscle tissue type is striated?
- Smooth muscle
- Cardiac muscle
- 11. Which muscle tissue type is under voluntary control?
- Cardiac muscle
- Skeletal muscle
12. Which region of the sarcomere disappears during a maximal skeletal muscle contraction?
- I band
- A band
13. Muscle hypertrophy occurs primarily by
- Increase in diameter of existing skeletal muscle fibers
- Increase in total number of skeletal muscle fibers
14. Which property of muscle tissue allows it to return to its original length after being stretched?
15. What is smaller in diameter?
- Muscle fiber
16. Which of the following is found in thin filaments
- All of the above
- 17. The term triad refers to which structures?
- Terminal cisternae pair
- T tubule
- H zone
- A and b
18. Which muscle tissue does not require innervation from the nervous system
19. Muscle is
20. Which molecule inside of muscle tissue binds oxygen
- Creatine phosphate