12 Questions
What is the type of muscle tissue responsible for functions like digestion?
Smooth muscle
What type of muscle is voluntary and composed of multinucleate fibers?
Skeletal muscle
What are the precursors to muscle fibers with many nuclei?
Myotubes
What is the contractile unit responsible for muscle contraction?
Myofibrils
What is responsible for the hypertrophy of muscle fibers in response to injury or chemical signals?
Satellite cells
What are the repeating units that make up myofibrils?
Sarcomeres
Which connective tissue surrounds the entire muscle?
Epimysium
What type of muscle fibers are fatigue-resistant and rely on aerobic metabolism?
Slow oxidative
Which structure in skeletal muscle cells is responsible for calcium release and contraction?
Sarcoplasmic reticulum
What provides proprioceptive information to the brain about muscle stretch and relaxation?
Muscle spindles
Which muscle fiber type contracts quickly for short periods and relies on anaerobic metabolism?
Fast glycolytic
What gives rise to the striation pattern seen in muscle fibers?
Arrangement of actin and myosin
Learn about the different types of muscle tissue: skeletal, cardiac, and smooth muscle. Understand the characteristics and functions of each type, including their structure and whether they are voluntary or involuntary.
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