题目内容

Skeletal muscles are called voluntary muscles because:骨骼肌被称为自愿肌肉，因为：

A. they are found under the skin.
B. they contract without a stimulus.
C. they are under our conscious control.
D. they are the muscle type that provide movement.

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What type of body tissue is mostly formed by skeletal muscle?什么类型的身体组织主要由骨骼肌形成？

A. Fat.
B. Flesh.
C. Glands.
Digestive tracts.

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.

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.