BIO 163

What are groups of skeletal muscle cells called?

What groups are muscle fibers arranged into?

What are the long cells surrounded by their own plasma membrane called?

80% of the sarcoplasm (cytoplasm) is filled with small cylindrical organelles called _________

Which filament is composed of the contractile protein myosin?

which filament is composed of the contractile protien actin?

What is associated with the regulatory proteins troponin and tropomyosin?

what causes striations?

A dark region composed of thick and thin filaments is _________?

bisecting the A band is a lighter region called ______

the H zone is bisected by the ________

What light region is composed of thin filament?

what bisects the I band?

The space from one Z disc to another Z disc is called ___________?

What contains a full A band and 2 half I bands?

Sarcoplasm is filled with _____, _______ and modified _______________ called sarcoplasmic reticulum

what wraps around the myofibrils?

The sarcoplasmic reticulum swell at certain points along the myofibril to form a __________

Running down the middle of each terminal cisternae is an inward extension called a _________

A group of 2 terminal cisternae and a T-tubule is called a _____

Fascicles are covered by connective tissue called _________

Bundles are covered by a connective tissue sheath called the ______

each fiber is surrounded by their own extracellular matrix called __________