The neucleus of smooth muscle cells becomes( )when the muscle contracts.()
A: enlarged
B: flattened
C: more spherical
D: twisted
E: elongated
A: enlarged
B: flattened
C: more spherical
D: twisted
E: elongated
举一反三
- When people become more and more trained, what changes may happen to the body? A: The muscle starts making more mitochondria. B: Mitochondria become smaller. C: Certain chemicals in the muscle cells disappear. D: Muscle cells are full of fuel.
- The slow wave of gastrointestinal smooth muscle originates from <br/>[] A: Mucosal layer B: Serous membrane layer C: Circulatory muscle D: Longitudinal muscle E: Cajal interstitial cells
- Muscle is often divided into striated muscle (or skeletal muscle), smooth muscle and cardiac muscle. Both Smooth muscle and cardiac muscle are under voluntary control.
- Which of the following muscle is voluntary muscle？ A: cardiac muscle B: smooth muscle C: biceps D: diaphragm
- Which of the following muscle is involuntary muscle？ A: skeletal muscle B: smooth muscle C: biceps D: triceps