题目内容

Under a microscope, skeletal muscle cells have distinctive markings known as:在显微镜下，骨骼肌细胞具有以下特征：

A. striations.
B. contractions.
C. mitochondria.
D. muscle pores.

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Another name for a skeletal muscle cell is a:骨骼肌细胞的另一个名字是：

A. muscle sheath.
B. muscle nucleus.
C. muscle fibre.
D. muscle tendon.

Which of the following muscle tissue types helps us to chew our food?以下哪种肌肉组织类型有助于我们咀嚼食物？

A. Cardiac.
B. Epithelial.
C. Smooth.
D. Skeletal.

Which of the following muscle tissue would be found in the wall of the small intestines?以下肌肉组织会在小肠壁上发现？

A. Cardiac.
B. Epithelial.
C. Skeletal.
D. Smooth.

Which is the term for the basic contractile unit of any muscle?任何肌肉的基本收缩单位的术语是什么？

A. Sarcoplasm.
B. Sarcolemma.
C. Myofibril.
D. Sarcomere.