Muscular System: Quiz 5a

Which number represents the Muscle Fiber?

Which number represents the Myofibril?

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which number identifies the sarcomere?

Which number identifies myosin?

Which number identifies actin?

Which number represents the A band region?

the functional contractile unit within a muscle fiber is called the

• sarcomere

• fascia

• sarcoplasm

• tendon

Structure B is known as the thin filaments of the sarcomere, what is another name for the thin filaments?

• myosin

• actin

• fascia

• myofibril

Structure C is known as the thick filament of the sarcomere, it is also known as

• myosin

• actin

• fascia

• myofibrils

Structure A is on either side of the sarcomere, it is called the

• A band

• I band

• Z disc

• fascia