The answer is true of what is telling you is true
In the given case, the person Chad is suffering from hepatitis.
Hepatitis refers to the inflammation of the liver. The viruses are the prime causes for the majority of hepatitis cases. The kind of hepatitis is named for the virus, which causes it, like hepatitis A, hepatitis B, or hepatitis C. Some of the common symptoms of hepatitis are:
1. Loss of appetite
2. Fatigue
3. Mild fever
4. Joint or muscle pain
5. Pain in the belly and nausea and vomiting
Answer:
When a muscle contracts, the actin is pulled along myosin toward the center of the sarcomere until the actin and myosin filaments are completely overlapped.
Explanation:
Is this the answer you're looking for?
The correct answer is C. troponin only.
The smooth muscle cells contain similar elements like the cardiac and skeletal muscle cells including actin, myosin and tropomyosin but they contain troponin.
Smooth muscle tissues are non striated and produce their own connective tissue called endomysium. Smooth muscle cells also lack sarcomeres but have other thin and thick filaments along with actin and myosin contractile proteins.
Due to lack of troponin the cross bridge formation is regulated by the regulatory protein calmodulin instead of the troponin- tropomyosin complex.
