Chapter 10 Quiz Flashcards
Entire muscle to smallest component
Muscle - fascicle - muscle fiber - myofibril - myofilament
An action potential causes calcium ions to diffuse from the _____ into the _____
Sarcoplasmic reticulum; sarcoplasm
Which of the following is the correct sequence for the production of ATP for muscle contraction?
CP, anaerobic respiration, aerobic respiration
Which of the following best describes the role of Ca2+ in muscle contraction?
It binds to troponin, moving tropomyosin, so that myosin heads can bind to actin.
Troponin
Binds to calcium and moves tropomyosin
Tropomyosin
Prevents interactions between actin and myosin
Thick filaments
Consist of myosin molecules
Skeletal muscle triad
Transverse tubule and two terminal cisternae
Sarcoplasmic reticulum
Storage and release site for calcium
Myosin head
Acts as ATPase during contraction cycle
Myoglobin
Oxygen-binding protein found in the muscle tissue
The muscle body is encased in which of the following?
The epimysium
Correct statements
The sequence of cross bridge formation and myofilament movement will be repeated as long as calcium ions are present.
A bundle of muscle fibers is known as a fascicle
Individual muscle fibers separated by endomysium
The primary neurotransmitter at the neuromuscular junction is
Acetylcholine
Function of skeletal muscle tissue
Protection and support
Body movement
Heat production
Maintenance of posture
