Muscle

What are the 3 types of muscles?

• Skeletal, muscular, ligament

• Skeletal, smooth, cardiac

• Smooth, Cellular, Cerebrum

• Cardiac, smooth, brain stem

Skeletal muscles always work _____.

• in groups

• in pairs

• singly

• none of the above

Tags

NGSS.MS-LS1-3

Smooth muscle and cardiac muscle are considered _____ muscles because we can’t control them consciously.

• Immovable

• Involuntary

• Skeletal

• none of the above

What is shown in the colored part of this diagram?

• a whole muscle

• five muscle fibers

• five muscle fascicles

• five myofibrils

Tags

NGSS.HS-LS1-2

What is the primary characteristic of skeletal muscles?

• They are involuntary and non-striated

• They are voluntary and striated

• They are involuntary and striated

• They are voluntary and non-striated

Which muscle type is characterized by being striated and involuntary?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• Voluntary muscle

The refractory period in which the muscle will not contract if stimulated occurs during ​ (a)   of the muscle cell

• repolarization

• hyperpolarization

• polarization

• depolarization

Which muscle-fiber type is best suited for endurance activities, such as long-distance jogging? ​ (a)  

• slow oxidative fibers

• slow glycolytic fibers

• fast oxidative fibers

• fast glycolytic fibers

Which type of muscle is under voluntary control?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Involuntary muscle

What is labeled "4" (the blue/purple part) in the diagram?

• sarcolemma

• sarcoplasmic reticulum

• transverse tubules

• myofibril