Muscle Contraction

Front

__________ is attached to the Z line?

Back

actin

Front

What is the contractile unit formed from Z line to Z line?

Back

Sarcomere

Front

____________ attaches to actin to form the cross bridge.

Back

Myosin

Front

The I band is labeled here as _______.

Back

AB

Front

The A band is labeled here as _______.

Back

AC

Front

The actin is labeled here as _______.

Back

AD

Front

The myosin is labeled here as _______.

Back

BD

Front

The Z line is labeled here as _______.

Back

AE

Front

A sarcomere is labeled here as _______.

Back

BC

Front

What is released from the sarcoplasmic reticulum?

Back

Calcium